which country is bordered by both ecuador and venezuela

A. colombia

B. guyana

C. french giana

D. suriname

Answers

Answer 1

The answer is A.

Columbia is country situated in the northwest of South America. Colombia shares a border to the northwest with Panama, to the east with Venezuela and Brazil and to the south with Ecuador and Peru. Colombian territory also encompasses Pacific coastlines in the west.

Answer 2

the corect answer is a

Related Questions

what is a gravitational field and how its strength be measured

Answers

A gravitational field is the field generated by a massive body, that extends into the entire space. Every object with mass m experiences a force F when immersed in a gravitational field. The intensity of the force is equal to
[tex]F= \frac{GM}{r^2} m[/tex]
where [tex]G=6.67 \cdot 10^{-11} m^3 Kg^{-1} s^{-2}[/tex] is the gravitational constant, M is the mass of the source of the field (e.g. the mass of a planet), and r is the distance between the object and the source of the field. The force is always attractive.

A possible way to measure the intensity of a gravitational field is by measuring the acceleration a of the object immersed in this field. In fact, for Newton's second law we have:
[tex]F=ma[/tex]
but since
[tex]F= \frac{GM}{r^2} m[/tex]
we can write
[tex]a = \frac{GM}{r^2}[/tex]
Therefore, by measuring the acceleration of the object, we also measure the intensity of the field.

(this question is just for fun)(at least try to answer it) If I was driving 272mph in a koenigsegg one:1 And I was traveling 50 miles across the country how long will it take me to arrive without no obstacles

Answers

The speed of the koenigsegg one is 272 mph , the distance that the car must travel is 50 miles

Speed = distance/time

Time = distance/speed = 50miles/272miles per hour = 0.1838 hours

Time = 0.1838 hours = 11.028 minutes = 661.68 seconds

USE THE AGERA RS, also it would run out of gas:) Im a car enthusiast

Two mechanical waves intersect and produce the straight line seen here. What is the result of this intersection called?

A) summative interference
B) destructive interference
C) subtractive interference
D) constructive interference

Answers

B) destructive interference

Answer: The correct option is B.

Explanation:

In the given problem, two mechanical waves intersect and produce the straight line seen here. It means that the new wave having zero amplitude is formed.

Destructive interference is the interference of the wave in which the new wave will form with lower amplitude.

Constructive interference is the interference of the wave in which the new wave will form with lower amplitude.

Therefore, the correct answer is B.

A bird is flying with a speed of 18.0 m/s over water when it accidentally drops a 2.00 kg fish. If the altitude of the bird is 5.40 m and friction is disregarded, what is the mechanical energy of the system, and what is the speed of the fish when it hits the water?

Answers

1) What is the mechanical energy of the system?
(here I assume that "system" refers to the fish, because we don't know the mass of the bird).
The mechanical energy of the fish is conserved during the entire free fall, because there are no friction acting on it, therefore we can calculate it at the beginning of its free fall, when it is dropped by the bird. At this instant, the velocity of the fish is equal to the speed of the bird [tex](v_i=18 m/s)[/tex], and the distance from the ground is h=5.40 m. The mechanical energy is the sum of its kinetic energy and its potential energy:
[tex]E=K+U= \frac{1}{2}mv_i^2+mgh=[/tex]
[tex]= \frac{1}{2}(2 kg)(18 m/s)^2 +(2kg)(9.81 m/s^2)(5.40m)=430 J[/tex]

2) When the fish hits the water, its potential energy has become zero, because the height from the water is now zero: h=0. This means that the mechanical energy E (which is conserved) is now only kinetic energy. Therefore we can write:
[tex]E=K_f = \frac{1}{2}mv_f^2 [/tex]
And we can find the final speed:
[tex]v_f = \sqrt{ \frac{2E}{m} }= \sqrt{\frac{2\cdot 430 J}{2 kg}} = 20.7 m/s[/tex]

(a) The mechanical energy of the system is 429.84 J.

(b) The speed of the fish when it hits the water is 20.73 m/s.

Given data:

The speed of flying bird is, v = 18.0 m/s.

The mass of fish is, m = 2.00 kg.

The altitude of bird is, h = 5.40 m.

(a)

Since the fish is carried by the bird initially. So, considering them as a part of single system. The mechanical energy (ME) of system is given as,

[tex]\rm ME = \rm kinetic\;\rm energy + \rm potential \;\rm energy\\ME = \dfrac{1}{2}mv^{2} + mgh\\\\ME = \dfrac{1}{2} \times 2.00 \times 18.0^{2} + (2.00 \times 9.8 \times 54.0)\\\\ME= 429.84 \;\rm J[/tex]

Thus, the mechanical energy of the system is 429.84 J.

(b)

When the fish is dropped to water at ground, then entire mechanical energy is converted into the kinetic energy (or potential energy becomes zero). So,

mechanical energy = kinetic energy

[tex]ME = \dfrac{1}{2}mv^{2}[/tex]

Here, v is the speed of fish, with which it hits the water.

Solving as,

[tex]429.84 = \dfrac{1}{2} \times 2.00\times v^{2}\\v=\sqrt{429.84} \\v = 20.73 \;\rm m/s[/tex]

Thus, the speed of the fish when it hits the water is 20.73 m/s.

Learn more about the mechanical energy of system here:

https://brainly.com/question/17152889

) with the box still on the truck, the truck attains its maximum velocity. as the truck comes to a stop at the next stop light, what is the magnitude of the maximum deceleration the truck can have without the box sliding?

Answers

When the truck starts decelerating a force starts acting on a box. In order for the box to start sliding force acting on it has to be bigger than a static force of friction.
If the trucks declaration is we have the following force acting on the box:
[tex]F=ma[/tex]
This force has to be smaller than static friction force:
[tex]F_f=mg\mu[/tex]
Where [tex]\mu[/tex] is static friction coefficient.
Now we can find an answer:
[tex]ma\leq mg\mu\\ a\leq g\mu[/tex]

Final answer:

The magnitude of the maximum deceleration to keep the box from sliding is determined by the coefficient of static friction and gravity; it can be calculated as 2.352 m/s² for a coefficient of 0.24.

Explanation:

The question deals with the concept of friction and deceleration in the context of a box placed on a truck that is coming to a halt. To prevent the box from sliding, the maximum deceleration is dictated by the coefficient of static friction.

This coefficient, multiplied by the acceleration due to gravity, gives us the maximum deceleration the truck can have without the box beginning to slide.

To calculate this, we can use the formula maximum deceleration (a_max) = coefficient of static friction (μ_s) × acceleration due to gravity (g), where μ_s is 0.24 and g is approximately 9.8 m/s².

Thus, a_max = 0.24 × 9.8 m/s², which results in a maximum deceleration of 2.352 m/s² without causing the box to slide.

How many liters of air are in a room that measures 10.0 ft Ã 11.0 ft and has an 8.00 ft ceiling? 1 in. = 2.54 cm (exactly); 331l=10cm?

Answers

Final answer:

To find the liters of air in a room measured at 10.0 ft by 11.0 ft with an 8.00 ft ceiling, the volume in cubic feet (880.0) is converted to liters, resulting in approximately 24,918.96 liters of air.

Explanation:

The question asks how many liters of air are in a room given its dimensions in feet, using conversion factors to relate to liters. To determine the volume in liters of a room measuring 10.0 ft × 11.0 ft with an 8.00 ft ceiling, we first calculate the volume in cubic feet and then convert this volume to liters.

First, calculate the volume in cubic feet: 10.0 ft × 11.0 ft × 8.00 ft = 880.0 cubic feet.

Next, convert cubic feet to liters using the conversion factor, where 1 cubic foot equals approximately 28.317 liters. Thus, 880.0 cubic feet × 28.317 liters/cubic foot = 24,918.96 liters of air in the room.

Assume the second cart moves in the negative direction. two carts with masses of 4.6 kg and 3.3 kg move toward each other on a frictionless track with speeds of 5.1 m/s and 4.9 m/s, respectively. the carts stick together after colliding head-on. find their final speed. answer in units of m/s.

Answers

The total momentum of the system (cart 1+ cart 2) is conserved after the collision.
The initial momentum is
[tex]m_1 v_1 - m_2 v_2[/tex] (1)
where the negative sign in front of cart 2 momentum is due to the fact it goes in the opposite direction of cart 1.
The final momentum is
[tex](m_1 + m_2) v_f[/tex] (2)
because the two carts stick together, therefore their total mass is (m1+m2) moving at the new speed vf.

By requiring that (1) is equal to (2), we can solve to find the final speed vf:
[tex]m_1 v_1 - m_2 v_2 = (m_1 + m_2) v_f[/tex]
[tex]v_f = \frac{m_1 v_1 - m_2 v_2}{m_1+m_2}= \frac{(4.6 kg)(5.1 m/s)-(3.3 kg)(4.9 m/s)}{4.6 kg+3.3 kg} =0.9 m/s [/tex]
where the positive sign means the two carts are now going in the positive direction (i.e. the initial direction of cart 1)

Which Of The Following Are Part Of The Ten Essentials List?

A. Extra Clothes And Rain Gear
B. Umbrella
C. Sunscreen And Hat
D. First Aid Kit
E. Water Purifier
F. Sleeping Pad

Answers

the are A,C,D that is answer the don't forget to see more answer

You hop on the carousel horse. The attendant flips the switch and you move up and down, around and around. When the ride ends, the attendant again flips the switch. The up and down motion stops, as you continue to move in a circular motion, gradually slowing to a stop. Why? A) All the mechanical energy of the carousel is lost. B) All of the kinetic energy is converted to potential energy. C) The external energy source overcomes the internal energy of the carousel. D) Mechanical systems need an external energy source to maintain their

Answers

The correct answer is:
A) All the mechanical energy of the carousel is lost.

In fact, all the mechanical energy of the carousel is lost because of the friction between the carousel and the ground. The carousel loses its energy little by little because of the friction, and it gradually slows down until it stops: all the initial energy of the carousel has been dissipated into thermal energy due to the friction between the carousel surface and the ground.

Answer:

D) Mechanical systems need an external energy source to maintain their

Explanation:

Mechanical systems need an external energy source to maintain their motion.

In this case, electrical energy is transformed to mechanical energy. Without electrical energy, the carousel slows due to friction and eventually stops.

Calculate the water pressure in the pipes at the bottom of a high-rise building that is fed by reservoir 60 m above the roof top. Please help and explain

Answers

In order to solve the problem, we can use Stevin's law. The pressure at the bottom of a column of fluid with density [tex]\rho[/tex] and height h is:
[tex]p=\rho g h[/tex]
In our problem, the fluid is water, so its density is [tex]\rho = 1000 Kg/m^3[/tex]. The height of the column of water is h=60 m, and [tex]g=9.81 m/s^2[/tex], therefore
[tex]p=(1000 Kg/m^3)(9.81 m/s^2)(60 m)=5.89 \cdot 10^5 Pa[/tex]

As a moon follows its orbit around a planet, the maximum grav- itational force exerted on the moon by the planet exceeds the minimum gravitational force by 11%. find the ratio rmax/rmin, where rmax is the moon's maximum distance from the center of the planet and rmin is the minimum distance.

Answers

The gravitational force exerted on the moon by the planet when the moon is at maximum distance [tex]r_{max}[/tex] is
[tex]F_{min}=G \frac{Mm}{r_{max}^2} [/tex]
where G is the gravitational constant, M and m are the planet and moon masses, respectively. This is the minimum force, because the planet and the moon are at maximum distance.

Similary, the gravitational force at minimum distance is
[tex]F_{max}=G \frac{Mm}{r_{min}^2}[/tex]
And this is the maximum force, since the distance between planet and moon is minimum.

The problem says that [tex]F_{max}[/tex] exceeds [tex]F_{min}[/tex] by 11%. We can rewrite this as
[tex]F_{max}=(1+0.11)F_{min}=1.11 F_{min}[/tex]

Substituing the formulas of Fmin and Fmax, this equation translates into
[tex] \frac{1}{r_{min}^2}=1.11 \frac{1}{r_{max}^2} [/tex]
and so, the ratio between the maximum and the minimum distance is
[tex] \frac{r_{max}}{r_{min}}= \sqrt{ 1.11 }=1.05 [/tex]

Because there is very little friction, the lever is an extremely efficient simple machine. using a 90.0% efficient lever, what input work is required to lift a(n) 19.0 kg mass through a distance of 45 cm? 3232 incorrect: your answer is incorrect. seenkey 93.2 j

Answers

more simply efficiency n=output work/input work =mgh/W(in)W(in) =18*9.81*0.5/0.90=98.1 Joule

Answer:

Input work: 93.2 J

Explanation:

The work efficiency formula is:

efficiency = output work/ input work

Solving for input work:

input work = output work/efficiency

The work required to lift an object is computed as follows:

Output work = mass * gravity * height

Using mass in kg, gravity in m/(s^2) and height in m; then work is expressed in Joules. Combining the equations and replacing with data, we get (units are omitted):

input work = 19*9.81*0.45/0.9 = 93.2 J

Note that 45 cm is equivalent to 0.45 m

Please help!! will mark brainiest and 60 pnts!!!

1) An items real value is
A) Equal to its price
B) Always greater than its perceived value
C) Equal to the cost of its production
D) An average of the price of competitor items

2) Bartering is an example of the exchange process at work.
A) True
B) False

3) The core of marketing is
A) Real value
B) Perceived value
C) Utility
D) Social media

4) Colligate football merchandise associated with colleges in the SEC (South Eastern Conference) are more popular in Alabama than in Oregon because of their
A) Time utility
B) Place utility
C) Form utility
D) Image utility

5) A consumer who is willing to pay more for a pre-assembled piece of furniture as opposed to a cheaper piece of furniture that has to be put together after purchase recognizes the item’s
A) Real value
B) Perceived value
C) Form utility
D) Possession utility

6) By marketing an item, sellers attempt to increase the real value of an item.
A) True
B) False

7) In modern-day society, the exchange process is primarily based on which of the following?
A) The bartering system
B) The honor system
C) The monetary system
D) The gold standard

8) All companies with a website use this online venue to directly sell their products to consumers.
A) True
B) False

9) In today’s society, some services and commodities can be successfully promoted via Internet marketing alone.
A) True
B) False

10) In marketing, an item’s utility refers to only how that product is used by the consumer.
A) True
B) False

Answers

In case you're in hurry, the correct answers are:
1) C
2) A
3) C
4) B
5) C
6) A
7) C
8) A
9) A
10) B

Detailed Explanation:
1) In marketing, the real value of an item, in simple terms, is the cost to produce the product. Let us take an example of an Apple product(say iPhone). Its real value is the cost of making its whole design, electronics, certain components within that electronics, the casing etc. In the options given, the one that satisfies the definition of item's real value is: Option C) Equal to the cost of its production.

2) Bartering is an exchange process. An example would be helpful to explain the concept. Let us suppose that there are only three people in the world, say Tom, Marija and Hanna. Tom has apples, Marija has oranges, and Hanna has mangoes. Tom loves oranges; therefore, he would go to Marija and ask her to exchange orange for apples. If Marija wants apples, she would most likely exchange oranges for apples. What if Marija wants mangoes instead of apples? She might exchange one or two oranges with Tom, and rest she would exchange with Hanna for mangoes. The bottom line is that in bartering the "real" goods and services are being exchanged instead of any kind of money. The correct answer is: A) True.

3) Marketing, according to American Marketing Association, is the set of activities and processes for creating, delivering and exchanging offerings that have value for customers. Customers always have a choice in the market, therefore, the core of marketing of any company/corporate is the benefit or the value a customer receives from the exchange in the market. The measure of that benefit and the value, in Marketing, is utility. The correct option is: C) Utility.

4) In Alabama more facilities are available. Stadiums there are much more bigger than that of in Oregon. Coaching facilities in Alabama are easily accessible to the consumers compared to that of in Oregon. Furthermore, the population of Alabama is more than that of Oregon. Therefore, place is the vital factor in the popularity of Colligate football merchandise. In marketing, Place Utility is the availability of a product or service in a location that is convenient and easily accessible to the customers. Hence, the correct option is: B) Place Utility.

5) Real value is the real cost of the production of an item. Perceived value is the worth of an item in the eyes of a consumer. Form Utility is the method of increasing the overall attractiveness of a product or making a product ready for consumption to a group of consumers by changing its physical appearance. Therefore, the correct option is: C) Form Utility.

6) Real value, as I explained above, is the cost to produce the product. In order to get much of the profit out of the product, sellers attempts to increase the real value. For example, if a company makes an item or product for $10, in order to get the profit out of it, it(company) advertises to increase its real value from $10 to $20. The correct option is: A) True

7) In modern-day society, the exchange process is primarily based on the monetary system. Individuals use money to buy items. States/countries uses money, almost all of the times, to sell and buy the services/goods. Therefore, the correct option is: C) The monetary system
Did you know(Information): Few countries prefer that bartering system along with the monetary system. Like China, Indonesia etc.

8) Indeed, the companies with a website use this online portal to directly sell their products to consumers. Apple, for instance, sell its products(iPad, iPhone, Macbooks, Apple TV, Watches etc.) online. Twitter and Facebook selling their services in terms of advertisements. There are hundreds and thousands of such examples.Therefore, the correct option is: A) True.

9) In present-day society, internet marketing is being used to promote and sell certain services and commodities. For example, on Facebook. Most of the businesses float their advertisements there for selling their products. Ebay and Amazon are the prime examples of selling the products online. The correct option is: A) True

10) Item's utility in Marketing is the expected satisfaction that a consumer gets upon the consumption of that particular item or product. It is not how the product is used by the consumer. Therefore, the correct option is: B) False.

1) C 2) A 3) C 4) B 5) C 6) A 7) C 8) A 9) A 10) B Is the answer

Select the volume units that are greater than one liter.

a.) kiloliter
b.) milliliter
c.) megaliter
d.) centiliter
e.) deciliter
f.) nanoliter

Answers

a.) kiloliter. 1 kiloliter = 1,000 liters
c.) megaliter. 1 megaliter = 1,000,000 liters

hope this helps

Answer: The correct answers are option (a)and(c).

Explanation:

1) In ,1 kilo Liter = 1,000 Liter

1 liter = 0.001 kilo Liter

2) In ,1 Mega Liter = 1,000,000

1 Liter = [tex]10^{-6}[/tex] Mega Liter

Where as milliliter, centiliter, deciliter and nano liters are smaller units that 1 liter

1 Liter = 1000 milliliter

1 Liter = 100 centiliter

1 Liter = 10 deciliter

1 Liter = [tex]10^9[/tex] nano liter

Hence, the correct answers are option (a)and(c).

If a steel, thin-shelled wheel of radius r and mass M is moving along the road at 2 m/s, what is the total kinetic energy?

1) 2M
2) 3M
3) 1M
4) 5M
5) 4M

Answers

The moment of inertia for rolling motion is
I = Mr²

The linear velocity is v = 2 m/s. The rotational velocity is
ω = 2/r

The total KE (kinetic energy) is
KE = (1/2)Mv² + (1/2) I ω²
= (1/2)(M)(4) + (1/2)(Mr²)(4/r²)
= 2M + 2M
= 4M

Answer: 4M

A transverse wave on a rope is given by y(x,t)= (0.750cm)cos(π[(0.400cm−1)x+(250s−1)t]). part a part complete find the amplitude.

Answers

The amplitude of a wave corresponds to its maximum oscillation of the wave itself.
In our problem, the equation of the wave is
[tex]y(x,t)= (0.750cm)cos(\pi [(0.400cm-1)x+(250s-1)t])[/tex]
We can see that the maximum value of y(x,t) is reached when the cosine is equal to 1. When this condition occurs,
[tex]y(x,t)=0.750 cm[/tex]
and therefore this value corresponds to the amplitude of the wave.

The amplitude of the given transverse wave in the rope is [tex]\boxed{0.750\,{\text{cm}}}[/tex].

Further Explanation:

The given expression of the wave developed in the rope is.

[tex]y\left( {x,t} \right) = \left( {0.750\,{\text{cm}}} \right)\cos \left( {\pi \left[ {\left( {0.400\,{\text{cm}} - {\text{1}}} \right)x + \left( {250\,{\text{s}} - 1} \right)t} \right]} \right)[/tex]

The standard equation of the wave produced in a rope is given as.

[tex]\boxed{y\left( {x,t} \right) = A\cos \left( {kx + \omega t} \right)}[/tex]

Here, [tex]y[/tex] is the position of the wave, [tex]A[/tex] is the amplitude of the wave, [tex]k[/tex] is the wave number and [tex]\omega[/tex] is the angular frequency of the wave.

On comparing the above equation of the wave with the standard equation of the wave produced in a rope, the amplitude of the wave can be obtained as follows.

[tex]A = 0.750\,{\text{cm}}[/tex]

Thus, the amplitude of the given transverse wave in the rope is [tex]\boxed{0.750\,{\text{cm}}}[/tex].

Learn More:

A remote-controlled car is moving in a vacant parking lot. The velocity of the car as a function of time is given by https://brainly.com/question/2005478 A particle of mass m=5.00 kilograms is at rest at t=0.00 seconds. A varying force f(t)=6.00t2−4.00t+3.00 is acting on the particle between https://brainly.com/question/6252219 You see condensed steam expelled from a ship’s whistle 2 s before you hear the sound. What is the air temperature if you are 700 m from https://brainly.com/question/10435778

Answer Details:

Grade: High School

Chapter: Waves

Subject: Physics

Keywords: Transverse, wave, amplitude, angular frequency, stationary wave, rope, velocity, position, wave number.

Compare the Carboniferous period to the Devonian period.

Answers

In the Devonian Period, forests and land plants evolved and vertebrates made their appearance. Four-legged vertebrates evolved during the Carboniferous Period, which caused an increase in the number of land-based organisms. Devonian Period, in geologic time, an interval of the Paleozoic Era that follows the Silurian Period and precedes the Carboniferous Period, spanning between about 419.2 million and 358.9 million years ago. The Devonian Period is sometimes called the “Age of Fishes” because of the diverse, abundant, and, in some cases, bizarre types of these creatures that swam Devonian seas. Forests and the coiled shell-bearing marine organisms known as ammonites first appeared early in the Devonian. Late in the period the first four-legged amphibians appeared, indicating the colonization of land by vertebrates. The Carboniferous Period lasted from about 359.2 to 299 million years ago* during the late Paleozoic Era. The term "Carboniferous" comes from England, in reference to the rich deposits of coal that occur there. These deposits of coal occur throughout northern Europe, Asia, and midwestern and eastern North America. The term "Carboniferous" is used throughout the world to describe this period, although in the United States it has been separated into the Mississippian (early Carboniferous) and the Pennsylvanian (late Carboniferous) Subsystems. This division was established to distinguish the coal-bearing layers of the Pennsylvanian from the mostly limestone Mississippian, and is a result of differing stratigraphy on the different continents. The Mississippian and Pennsylvanian, in turn, are subdivided into a number of internationally recognized stages based on evolutionary successions of fossil groups . These stages are (from early to late) Tournaisian, Visean, and Serpukhovian for the Mississippian — and Bashkirian, Moscovian, Kasimovian, and Gzhelian for the Pennsylvanian.

In geologic time, the Devonian Period is a period of the Paleozoic Era that follows the Silurian Period and precedes the Carboniferous Period, lasting between 419.2 million and 358.9 million years ago.

What is Devonian period?

The Devonian, a Paleozoic era, is also known as the Age of Fishes because it produced a diverse range of fish.

The most fearsome were the armored placoderms, a group that first appeared during the Silurian period and had powerful jaws lined with bladelike plates that acted as teeth.

The Carboniferous period (about 360 million to 300 million years ago) was distinguished by dense and swampy forests that produced large deposits of peat.

Over time, peat bogs in Western Europe and North America transformed into rich coal reserves.

Thus, the above mentioned is the comparison between the two periods.

For more details regarding Devonian Period, visit:

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Term Definition
Match the correct term to the right definition

Elliptical galaxy A) Forms a perfect sphere or an ellipse and is flattened to some degree

Irregular galaxy B) Has a large flattened core

Lens galaxy C) Does not have a distinct regular shape

Spiral galaxy D) Has a central core from which curved arms spiral outward

Answers

Elliptical galaxies are given a classification that corresponds to their elongation from a perfect circle, otherwise known as their ellipticity

Answer,

Elliptical Galaxy/ Forms a perfect sphere or an ellipse and is flattened to some degree

Irregular galaxy/Does not have a distinct regular shape

Lens galaxy/ Has a large flattened core

Spiral galaxy/ Has a central core from which curved arms spiral outward

I'm %500 sure this is correct :-)

Match the following vocabulary words with their definitions:

Question 1 options:

rate of change in velocity, which is the change in velocity divided by the change in time

the rate at which an object changes position when traveling in a certain direction

force of attraction between all masses in the universe

an object´s resistance to a change in motion

force of resistance acting between objects in contact and tending to dampen their motion

the rate at which an object changes position

1.
acceleration

2.
speed

3.
friction

4.
gravity

5.
inertia

6.
velocity

Save

Answers

Correct matching:

1 acceleration --> rate of change in velocity, which is the change in velocity divided by the change in time

2. speed --> the rate at which an object changes position when traveling in a certain direction

4. gravity --> force of attraction between all masses in the universe

5. Inertia --> an object´s resistance to a change in motion

3. friction --> force of resistance acting between objects in contact and tending to dampen their motion

6. velocity --> the rate at which an object changes position

Apply Newton's three laws of motion to everyday situations.

Answers

Hey there!

We'll start with the first law, the law of inertia, which states:

"an object in motion will stay in motion moving at the same speed in the same direction unless acted on by an outside force".

Let's imagine you're playing soccer with your friends. You kick the ball at them really hard, and they're the goalie. It goes in the same direction in a straight line, and then they catch it - the unbalanced force. There's a change in motion there, and that change in motion depends on the inertia of an object- it's tendency to resist change in motion. Inertia even applies to planets. Wonder why out Earth's orbit is an ellipse? By natural standards of physics, the Earth goes straight when it's not pulled into orbit when here it is. It still has that tendency to go straight, but the Sun pulls it towards itself, creating a motion in which the Earth is trying to go straight, but the Sun's more powerful.

The second law is pretty much summarized by the famous equation f = ma. The law, summed up, states,

"The net force of an object is equal to the mass of the object times its acceleration."

If you tried to give a push to a small box with efficient wheels, it'd go pretty far. This is because it has not a lot of mass, and the force required isn't a lot. However, if we had a large box on the ground, the force required to move it would be larger, as it's more massive and doesn't have any acceleration. Imagine a shopping cart filled to the ceiling with cereal. It would require a lot of force, wouldn't it? Be sure to think about that.

Last one. Newton's third law is perhaps the most famous. It states,

"For every action, there is an equal and opposite reaction".

This is probably the hardest one to understand. Let's try an example. Have you ever accidentally not tightened your balloon, and it started to fly up? That's an application of Newton's third law. The air comes out from the bottom, and the balloon flies up - that's an opposite reaction; up and down. It's the same thing with a rocket. The same force to propel it up is exerted on the ground - an equal reaction.

Hope this helps! Be sure to let me know if you have any questions :)

An oil storage tank ruptures at time t = 0 and oil leaks from the tank at a rate of r(t) = 105e−0.04t liters per minute. how much oil leaks out during the first hour? (round your answer to the nearest liter.)

Answers

65 liters of oil leaks out during the first hour.

What is Oil leaks?

When the oil filter gradually becomes looser or the oil gasket is improperly tightened, car or engine oil leaks happen.

These are also known as oil filter leaks, and generally speaking, the filter gasket should be tightened in accordance with the manufacturer's instructions.

Sometimes, a gasket and bolts are used to secure an external oil pump to the engine block. These parts are prone to wear and leakage. Lack of oil in the oil pump can result in severe damage, including early wear of the pump and oil starvation of the engine.

Therefore, 65 liters of oil leaks out during the first hour.

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What is an important trait or skill a scientist must have

Answers

characteristics that lend themselves to carrying out the kind of work scientists do. These include strong observational skills, curiosity, logic, creativity, skepticism, and objectivity.

what information does a free-body diagram show?

Answers

Free-body diagrams are diagrams used to show the relative magnitude and direction of all forces acting upon an object in a given situation. A free-body diagram is a special example of the vector diagrams

Answer:

All of the force vector acting on an object

Explanation:

That's what a free-body diagram does, and ayepecks

it takes 1.0h to drive 20km through a city during rush hour your (Blank) speed is 20km/h

Answers

Your average speed is 20 km/h.

Final answer:

The question involves calculating average speed by dividing distance traveled by time of travel. In the example, for a 20 km drive taking 1.0 hour, the average speed is 20 km/h. Another scenario provided explains how to convert average speed to different units given a trip from school to home.

Explanation:

The question asks about calculating average speed during a trip, which can be determined by dividing the total distance traveled by the total time of travel. In the given scenario, the student has a 1.0 hour trip to cover 20 km, which correctly yields an average speed of 20 km/h. To calculate average speed, you simply use the formula:

Average speed = Total distance / Total time

For a more detailed example, if you drive 10.0 km from your school to home in 20.0 minutes, it's necessary to convert minutes to hours by dividing by 60. You would then calculate the average speed in kilometers per hour (km/h) and convert the result to meters per second (m/s), if needed, using the appropriate conversion factors (1 km = 1000 m and 1 hr = 3600 seconds).

The weight of an ice sheet can cause continental lithosphere to sink into the underlying asthenosphere due to ____.

Answers

Answer: Isostatic rebound

The weight of an ice sheet imposed on lithosphere in the continental block will cause the continent to sink in the asthenosphere due to isostatic rebound. The thickness of the ice sheet change with time as the sea level rise and the sinking of the lithosphere will continue until isostatic equilibrium is reached.

Match up the following set of words with their definitions:

Question 2 options:

mass

magnitude

weight

net force

vector

force

1.
a measure of the force of gravity on an object, expressed as mass of the object times acceleration due to gravity

2.
the amount of matter an object is made up of measured in grams

3.
a push or pull

4.
a numerical quantity, expressed by standard unit/s of measurement

5.
a number (rate) with a direction; a quantity that has both magnitude (measurable amount) and direction

6.
refers to the application of more than one force on an object and, therefore, the combined effect (sum of forces)

Answers

Mass is number 2. Vector is 5. Force is 3. Weight is 1. Net force is 6. magnitude is 4.

The match of the following set of words with their definitions is given as follows,

Mass ⇒ 2, Magnitude ⇒ 4, Weight ⇒ 1, Net force ⇒ 6

Vector ⇒5, Force ⇒ 3

What is Newton's second law?

Newton's Second Law states that The resultant force acting on an object is proportional to the rate of change of momentum.

Mass ⇒ the amount of matter an object is made up of measured in grams.

Magnitude ⇒ a numerical quantity, expressed by standard unit/s of measurement.

Weight ⇒ a measure of the force of gravity on an object expressed as the mass of the object times acceleration due to gravity.

Net force ⇒ refers to the application of more than one force on an object and, therefore, the combined effect (sum of forces).

Vector ⇒ a number (rate) with a direction; a quantity that has both magnitude (measurable amount) and direction.

Force ⇒ a push or pull

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One student did an experiment with two unknown minerals, Mineral 1 and Mineral 2. The hardness scale shown below was used for the experiment.

Mineral Talc Gypsum Calcite Fluorite Apatite Orthoclase
Hardness 1 2 3 4 5 6

Any mineral on the hardness scale would scratch minerals below it on the scale. The student tested Mineral 1 and observed that it could scratch only two other minerals on the hardness scale. It was observed that Mineral 2 could scratch only four other minerals on the hardness scale. Which of these is a correct conclusion the student can make about Mineral 1 and Mineral 2?
A) Mineral 1 can be used to scratch talc and Mineral 2 can be used to scratch orthoclase.
B) Mineral 1 can be used to scratch orthoclase and Mineral 2 can be used to scratch talc.
C) Mineral 1 can be used to scratch calcite and Mineral 2 can be used to scratch gypsum.
D) Mineral 1 can be used to scratch gypsum and Mineral 2 can be used to scratch calcite.

Answers

Scale: (soft 1-->6 hardest)
1=Talc 2=Gypsum 3=Calcite 4=Fluorite 5=Apatite 6=Orthoclase

Mineral #1 can only scratch two other minerals therefore it must have a hardness level of 2+1=3 which is Calcite. (scratches talc, gypsum)

Mineral #2 can scratch four other minerals therefore it must have a hardness level of 4+1=5 which is Apatite. (scratches all but Apatite, Orthoclase)

Looking through the possible conclusions.. It looks like answer is D.

Final answer:

Mineral 1 has a hardness equivalent to calcite, and Mineral 2 has a hardness equivalent to apatite. Therefore, Mineral 1 can scratch calcite and Mineral 2 can scratch gypsum.

Explanation:

The hardness scale in the question list minerals according to their hardness. Mineral 1 could only scratch two other minerals, which means that it should rank third on the scale, since it can only scratch minerals 1 and 2. The hardness of Mineral 1 is, therefore, equivalent to that of calcite. Similarly, Mineral 2 could scratch four other minerals, and thus should rank fifth on the scale, after minerals 1, 2, 3, and 4. This means that the hardness of Mineral 2 is equivalent to that of apatite. Therefore, the correct answer is option C) Mineral 1 can be used to scratch calcite and Mineral 2 can be used to scratch gypsum.

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Which of the following utilize electromagnetic induction to operate?
generators in power plants
telephones
turbines
masonry
fireplaces
solar ovens

it multiple choose

Answers

The correct answer is A. B. C. Hope this helps!!

The correct answer is option A and F, Generators in power plants and Solar ovens

Electromagnetic induction is the phenomena of generating electricity due to a changing magnetic field. In electric generators, a rotating coil (which acts as a conductor) is placed between the two magnets. As the coil rotates it induces electromotive force within the conductor. Like wise in case of solar oven , heating is caused due to the eddy currents produced with in the conductor placed with in a changing magnetic field.

An antique carousel that’s powered by a large electric motor undergoes constant angular acceleration from rest to full rotational speed in 5.00 seconds. When the ride ends, a brake causes it to decelerate steadily from full rotational speed to rest in 11.0 seconds. Compare the torque that starts the carousel to the torque that stops it. τstart/τstop = the tolerance is +/-2%

Answers

1) For a rotating object, we can write the analogous of Newton's second law as
[tex]\tau = I \alpha[/tex]
where [tex]\tau[/tex] is the torque applied to the object, I is the moment of inertia and [tex]\alpha [/tex] is the angular acceleration.

2) We can write the ratio between the starting torque and the stopping torque as:
[tex] \frac{\tau _{start}}{\tau _{stop}} = \frac{I \alpha _{start}}{I \alpha _{stop}} = \frac{ \alpha _{start}}{\alpha _{stop}} [/tex]

3) Then, we can rewrite the two angular accelerations. The general formula is
[tex]\alpha = \frac{\omega _f - \omega _i}{t} [/tex]
where [tex]\omega _f [/tex] and [tex]\omega _i[/tex] are the final and initial angular velocities, while t is the time.

4) Let's start by calculating the starting acceleration. In this case, the initial velocity is zero, while the final velocity is the full rotational speed (let's call it [tex]\omega _{max}[/tex], and the time is t=5.0 s:
[tex]\alpha _{start} = \frac{\omega_{max}-0}{5 s}= \frac{\omega_{max}}{5 s}=[/tex]
When the carousel stops, instead, the initial velocity is [tex]\omega _{max}[/tex] while the final velocity is 0, and the time is t=11.0 s:
[tex]\alpha _{stop} = \frac{0-\omega _{max}}{11 s}= \frac{-\omega _{max}}{11 s} [/tex]
Therefore, if we replace the two angular accelerations that we found into the formula of the torque ration written at step 2), we find:
[tex] \frac{\tau _{start}}{\tau _{stop}} = - \frac{11}{5} [/tex]
where the negative sign simply means that the two torques have opposite direction. Therefore, the ratio between starting and stopping torque is 11:5.

Which type of motor is shown below?

Answers

Answer: Option D, magnetic motor

Explanation: Plato/Edmentum

A magnetic motor has been shown in the picture.

What is a magnetic motor?

A magnet motor, also known as a magnetic motor, is a form of perpetual motion device designed to produce rotation using permanent magnets in the stator and rotor without the use of external energy. Both conceptually and physically, such a motor is not feasible.

Numerous amateurs have championed the concept of working magnetic motors. It is conceivable that it is parascience. The term "free energy" is frequently used.Magnet motors should not be confused with permanent magnet motors, which are more frequently used and are powered by an external electrical energy source.Permanent magnets are used in both the stator and rotor of a hypothetical magnet motor. A circular movement of the rotor is allegedly kept going forever by a specific configuration of the attracting and repelling poles.

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which country is bordered by both ecuador and venezuela

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