Answers
Final answer:
A roller coaster utilizes the principles of physics, specifically potential and kinetic energy, to create thrilling rides.
Explanation:
A roller coaster is a thrilling ride that is designed to take advantage of the principles of physics. One important concept that comes into play is potential energy. At the start of the ride, the roller coaster is lifted up to the highest point, storing potential energy. As the coaster moves down the track, the potential energy is converted into kinetic energy, causing the coaster to gain speed. This transfer between potential and kinetic energy is what makes roller coasters exciting.
Related Questions
How do i do this?
Draw a Punnett square in your assignment worksheet that shows the results of a cross between a homozygous red bull (RR) and a heterozygous red cow (Rr). Be certain to title your Punnett square and indicate each parent.
Answers
so
put one bull on the side and one on the top
aka
| R | r
R |RR | Rr
R | RR | Rr
Answer:
| R | R
R | RR | RR
r | Rr | Rr
Explanation:
The Punnett square is a square diagram that is used to predict the genotypes of a particular cross or breeding experiment.
At the top of the square you have to put the genetic contribution of one parent and at the leftmost column, the genetic contribution of other parent. And then make the combinations, as follows:
| R | R
R | RR | RR
r | Rr | Rr
Currently, new regulations control the use of pesticides and chemical fertilizers to reduce what? A. Water contamination B. Insect population C. Crop sizes D. Illness
Answers
its A. water contamination
Over use of pesticides and fertilizers results in contamination of water and air as well as they cause severe health issues when exposed to them. Currently, regulations are controlling the use of these chemicals to reduce water contamination.
What are pesticides?Pesticides are chemical compounds used to kill pests. It is important to control the population of pests and insects which badly affects the crops. However pesticides cannot be used in over dosage it will affect the living.
Fertilizers are used to fertilize the soil to help for the growth of crops. They also contains toxic chemicals.
Both fertilizers and pesticides contains hazardous and toxic chemicals. They chemicals definitely will result in pollution of water and air and causes healthy issues for surrounding organisms.
Water contamination is a serious issues that we are all addressing for long while. Reducing the use of pesticide and fertilizers can decline water pollution up to an extend. Hence, option A is correct.
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What is the role of the respiratory system?
a.
to bring water into the body
b.
to bring oxygen into the body
c.
to bring carbon dioxide into the body
d.
none of the above
Answers
Comment if the answer is right or wrong so other people that need this will be 100% sure.
What is an ion found in a glass of water
Answers
Answer:
[tex]H^{+}[/tex] ion and [tex]OH^{-}[/tex] ions.
Explanation:
As we notice the glass of water, in this observation we find that the glass also made up of sodium silicate which will give us oxygen ion.
And the water which is present in the glass will break into the hydroxyl ion and [tex]H^{+}[/tex] ion .
Therefore, glass of water contains [tex]H^{+}[/tex] ion and [tex]OH^{-}[/tex] ions.
An ion commonly found in a glass of water is the hydrogen ion (H+).
How does this happen?When water molecules dissociate, a small fraction of them break apart into hydrogen ions (H+) and hydroxide ions (OH-). These ions are responsible for the water's ability to conduct electricity.
The presence of hydrogen ions in water makes it slightly acidic, with a pH below 7. However, the concentration of hydrogen ions in pure water is very low, making it close to neutral on the pH scale. The balance of these ions is essential for maintaining the pH and chemical properties of water.
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A body has translatory motion if it moves along a
Answers
Darrell is trying to remove a nail from a board using the claw of a hammer, but the nail is stuck. Which of the following could Darrell do to make the job easier?
A.
Use a hammer with a longer handle.
B.
Use a heavier hammer.
C.
Use a hammer with a shorter handle.
D.
Use a hammer with a sharper claw.
Answers
It's C loves! I just got it right.
Answer: The answer is c
What tactics does a financial planner apply to deal with a difficult client
Answers
There are many different solutions to dealing with a difficult client. For example, you can release them which means you transfer them to another firm so you won't have to deal with them. If you want to keep the client, you can change the way in which you bill them. Another option is to be direct and polite at the same time. Lastly, use a team approach so other people in that firm get to work with that same client.
Compare and contrast an electric discharge with an electric current
Answers
In what way do acids affect your body?
Answers
Which of the following situations would cause light to refract? A. traveling through a vacuum B. passing from one glass block to another C. moving through the air D. moving from air to water
Answers
Light refraction occurs when light passes from one medium to another, leading to a change in its direction. In the given options, this phenomenon would be observed when light moves from air to water, causing it to slow down and bend. This refraction is what makes objects look distorted when viewed through water.
The correct option is D.
The phenomenon of light refraction occurs when light passes from one medium to another, causing a change in its direction. Due to the dissimilar densities of different media, the speed and direction of light are affected, leading to its refraction. Specifically, between the four options given, the situation that would cause light to refract is when light is moving from air to water (option D).
As demonstrated in figure 2.4 (a), when light transfers from air (a less dense medium) to water (a denser medium), it slows down and its path bends, resulting in refraction. This change of direction is why objects often appear distorted or misaligned when observed through water.
While light can also refract when passing from one glass block to another (option B), this situation wasn't presented in the original question. Similarly, reflected light differs from refracted light in that it bounces off surfaces while refracted light bends when transitioning between different media.
Hence The correct option is D.
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Refraction occurs when light moves from one medium to another with a different density, causing it to bend. The correct situation where refraction happens is when light moves from air to water. Examples of refraction include light passing through a prism and a bent appearance of a straw in water.
Refraction is the bending of light rays as they pass from one medium to another with a different density. This occurs due to a change in the speed of light between the two media, causing the light rays to change direction.
Among the given options, the situation that would cause light to refract is moving from air to water.
This phenomenon happens because light travels at different speeds in different media. When light passes from air (a less dense medium) into water (a denser medium), its speed decreases, and it bends towards the normal line at the boundary between the two media.
The correct answer is:
D. moving from air to waterExamples of Refraction:
1. When light passes through a prism, it refracts, separating into different colors.
2. A straw appears bent when partially submerged in water due to refraction.
In summary, D) moving from air water, causes would cause light to refract.
What happens to a current when it comes in contact with a continent or landmass?
Answers
How much data can a digital wave send. (The maximum data)
Answers
limited to about 60,000 bits (7,500 Bytes) per second.
... Data sent over "Category 5" and "Category 6" Ethernet cables
usually runs at either 100 megabits or 1 gigabit per second.
... Data sent over wideband microwave radio signals
is currently capable of up to 1 gigabit (1000 megabits)
per second.
... Fiber optic systems typically operate at 10 gigabits or
40 gigabits per second, but much higher rates have been
accomplished.
In 2010, Nippon Telegraph and Telephone Corporation (of Japan)
transferred 69,100 gigabits per second (69.1 Terabits) over a single
fiber that was about 150 miles long.
In 2012, the same company transferred 1 million gigabits per second
(1 petabit) over a single fiber about 31 miles long.
__________________________________
1 megabit = 1 million bits
1 gigabit = 1 billion bits = 1,000 megabits
1 Terabit = 1,000 gigabits = 1 million megabits
1 petabit = 1,000 Terabits = 1 million gigabits = 1 billion megabits
= 1 billion million bits .
Archimedes is supposed to have said, "Give me a place to stand on, and I will move the Earth." Suppose you had an object with a mass equal to that of Earth (5.98 1024 kg), and it experienced gravity equal to that at Earth's surface, so that its weight was 5.87 1025 N. If by using a lever you could move this mass with a force of 175 N, what would be the mechanical advantage of the lever?
Answers
[tex]MA= \frac{ F_{a} }{F_{b}} [/tex]
We are given information:
[tex]F_{a} = 5.87* 10^{25} N \\ F_{b} = 175N[/tex]
[tex]MA= \frac{ 5.87* 10^{25} N }{175 N} \\ MA=3.4* 10^{23} [/tex]
A .5 kg toy train car moving forward at 3 m/s collides with and sticks to a .8 kg toy car that is traveling at 2 m/s what is the final velocity of the two cars round to the nearest 10th
Answers
[tex] m_{1} * v_{1} + m_{2} * v_{2} = m_{1} * v'_{1}+ m_{2} * v'_{2}[/tex]
In case of perfectly inelastic collision v'1 and v'2 are same.
We are given information:
m₁=0.5kg
m₂=0.8kg
v₁=3m/s
v₂=2m/s
v'₁=v'₂=x
0.5*3 + 0.8*2 = 0.5*x + 0.8*x
1.5 + 1.6 = 1.3x
3.1 = 1.3x
x = 2.4 m/s
Four balls are dropped from a platform, 20 meters high. Which ball will experience the GREATEST change in kinetic energy, from platform to ground?
10 kg
20 kg
30 kg
40 kg
Answers
Answer:
D.) 40
Explanation: I toke the USA-Test-Prep interim for it and past. I do k12. the heavier the ball the more kinetic energy gained.
What has occured when bubbles form in a liquid that is being heated
Answers
Bubbles form in a liquid being heated when it reaches its boiling point, due to the expansion of water vapor and air within them.
When bubbles form in a liquid that is being heated, such as water, this is an indication that the liquid is reaching its boiling point. Water and other liquids contain dissolved air and impurities, which become visible as small bubbles at lower temperatures. As the temperature of the liquid increases, the water vapor inside these bubbles expands. The boiling process starts when the vapor pressure inside the bubbles is equal to the atmospheric pressure. At this point, usually 100°C for water at sea level, bubbles grow rapidly in size increasing the buoyant force, causing them to rise to the surface and release their vapor in a process commonly referred to as boiling. To prevent bumping, a phenomenon where the liquid can boil violently, a boiling chip or a stirring rod can be used to provide nucleation sites for bubble formation.
Sometimes a liquid can become superheated, reaching a temperature at which it should be a gas without actually boiling. This condition is unstable and the liquid may boil suddenly, sometimes even explosively. Disturbance or introduction of nucleation sites can initiate boiling in superheated liquids.
A computer draws a current of 10 amperes when plugged into a 220 volt socket. How much power does the computer have?
Answers
The power consumed by the computer is calculated using the formula for electric power, P = I X V. In this case, the power is 2200 watts.
To calculate the power consumed by the computer when it draws a current of 10 amperes and is plugged into a 220-volt socket, we use the formula for electric power (P), which is the product of current (I) and voltage (V). Therefore, we calculate the power as
P = I X V
P = 10 A X 220 V
P = 2200 W (watts) or 2.2 kW.
A television of mass 13 kg sits on a shelf. What is the normal force acting on the television?
A. 13.0 N
B. 127 N
C. 51.2 N
D. 99.4 N
Answers
[tex]13 \times 9.8 = 127.4[/tex]
B is the correct answer
Answer:
Normal force, F = 127 N
Explanation:
It is given that,
Mass of the television, m = 13 kg
It is sitting on the shelf. We have to find the normal force acting on it. The forces acting on it are normal force and its weight. So, the normal force is given by :
F = mg
g = acceleration due to gravity
[tex]N=13\ kg\times 9.8\ m/s^2[/tex]
F = 127.4 Newton
or
F = 127 N
Hence, the normal force acting on the television is 127 N
Can you help me with question one?
Answers
2 * 10^13 electrons have a charge of x
1/2*10^13 = 1.6*10^-19 /x Cross multiply
x = 2*10^13 * 1.6*10^-19
x = 3.2 * 10^-6 coulombs.
I would say that you have to indicate that the answer is minus. You are talking about electrons.
-3.2 * 10^-6 coulombs <<<< answer
A construction worker pushes a wheelbarrow with a total mass of 50.0kg. What is the acceleration of the wheelbarrow if the net force on it is 75 N West?
Answers
The acceleration of a 50.0 kg wheelbarrow pushed with a net force of 75 N west is calculated using Newton's second law of motion to be 1.5 m/s² west.
To calculate the acceleration of a wheelbarrow with a mass of 50.0 kg being pushed with a net force of 75 N west, we can use Newton's second law of motion. This law states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass, which can be represented by the formula a = F/m, where a is acceleration, F is force, and m is mass.
Given a net force of 75 N west and a mass of 50.0 kg, the acceleration can be calculated as follows:
a = F/ma = 75 N / 50.0 kga = 1.5 m/s² westTherefore, the acceleration of the wheelbarrow is 1.5 meters per second squared in the westward direction.
Why does an ice cube melt when you hold it in your hand? Question 1 options: Heat from the ice cube is transferred to your hand. The ice cube radiates heat to your hand. Your hand transfers temperature to the ice cube. Heat is transferred from your hand to the ice cube.
Answers
which of the following terms relate to the meaning of "physical"
Answers
The term "physical" encompasses concepts such as mass, density, and physics, extending to health, geography, and the tangible aspects of reality, highlighting the diverse realms it influences.
The term "physical" encompasses various concepts and is associated with multiple terms that pertain to the tangible and material aspects of the world. Firstly, it refers to the properties and characteristics of matter, encompassing terms such as mass, density, and volume, which describe the fundamental attributes of physical objects. Additionally, the term is intricately linked with the field of physics, which explores the fundamental principles governing the behavior of matter and energy.
In the context of health and well-being, "physical" is often connected to terms like fitness, exercise, and bodily functions, highlighting the importance of maintaining a healthy and active lifestyle. It also extends to the realm of geography, involving terms such as physical geography, which examines the natural features of the Earth's surface like landforms, climate, and ecosystems.
Moreover, in the context of reality and existence, "physical" contrasts with the abstract, incorporating terms like metaphysical to describe aspects beyond the material world. The term is also used in the context of examinations, where a physical exam assesses a person's bodily health through direct observation and palpation.
In summary, the term "physical" encompasses a spectrum of concepts, ranging from the fundamental attributes of matter and principles of physics to health, geography, and the tangible aspects of reality.
The question probable may be:
What terms are associated with the meaning of "physical"?
The terms that relate to the meaning of 'physical' is body and matter. Option C and E
The terms that relate to the meaning of "physical" are:
bodymatterThese terms are associated with the physical aspect of the world, encompassing the laws governing the natural world, the tangible structure of the body, and the substance of matter.
Terms like "mind," "emotions," "gravity," and "spiritual" are more aligned with aspects beyond the purely physical and may involve mental, emotional, or spiritual dimensions.
Complete question:
Which of the following terms relate to the meaning of "physical"?
natural laws
mind
body
emotions
matter
gravity
spiritual
The cooled lava pools on the surface of a crater are called what?
1. Craters
2. Terrae
3. Maria
4. Reoglith
Answers
If stretching is done during the cool-down, it can help the muscle _____.
Answers
The Galilean moons are satellites of which planet?
Answers
The three forces acting on a hot-air balloon that is moving vertically are its weight, the force due to air resistance and the upthrust force. The hot-air balloon descends vertically at constant speed. The force of air resistance on the balloon is F. Which weight of material must be released from the balloon so that it ascends vertically at the same constant speed? A F B 2F C 3F D 4F
Answers
Explanation :
The forces acting on hot- air balloon are:
Weight, (W)
Force due to air resistance, (F)
Upthrust force, (U)
Its weight W is acting in downward direction. The upthrust force U acts in upward direction. When the balloon is moving upward, the air resistance is in downward and vice versa.
In this case, the hot-air balloon descends vertically at constant speed.
so, [tex]a=0[/tex]
and [tex]F=ma=0[/tex]
so, [tex]W = F + U[/tex] ....................(1)
when it is ascending let the weight that it is releasing is R, so
[tex](W-R) + F = U[/tex]..........(2)
solving equation (1) and (2)
[tex](W-R)+F=W-F[/tex]
[tex]R=2F[/tex]
2F is the weight of material that must be released from the balloon so that it ascends vertically at the same constant speed.
Answer: (B) .2 F
Explanation :
The weight is always downward and it is a constant.
The upthrust fore U acts upward and it has always same value as it depend on the difference in height between the top and bottom surface of the air balloon.
The direction of the force due to air resistance depends on the motion and air resistance always opposite motion. air resistance downwards that means the air balloon will ascending and air balloon will descending then air resistance is upwards.
So, air resistance depends on speed .
When air balloon descending at constant speed
Air resistance = F
A constant speed means acceleration is zero that means the resultant force is zero.
W = F + U.....(I)
When air balloon ascending
air resistance = F downwards
Some weight of the material needs to be released for the resultant force to be zero.
Suppose, the weight to be released be R.
(W - R) + F = U......(II)
From equation (I)
U = W- F....(III)
The upthrust force has same value throughout the motion.
Now, put the value of U in equation (I)
W - R + F = W - F
-R = - F - F
R = 2 F
Hence, this is the required solution.
Once the magma found at location "E" cools and crystalizes, it will
Answers
Answer:turn into stone. this will cause erosion for magma to turn to stone
Explanation:
¿como se clasifican las leyes que intervienen en la ocurrencia de los fenomenos fisicos?
Answers
Which diagram best represents the relationship between the Earth and Sun that causes the changes in seasons on Earth?
Answers
Indeed, the inclination of the Earth's axis has the effect to expose to the sunlight a hemisphere more than the other: i.e. during the month of January, the axis is inclined so that the South pole is closer to the Sun than the North Pole, resulting in summer in the Southern Hemisphere and winter in the Northern Hemisphere; while during the month of August the axis is inclined so that the North pole is closer to the Sun than the South Pole resulting in summer in the Northern Hemisphere and winter in the Southern Hemisphere.
Answer: third diagram
Explanation:
An object's mass is a measure of how much matter makes it up. An object's weight is a measure of the gravitational force that acts on it. An object's mass is always _______ its weight.
A. proportional to
B. equal to
C. half of
D. double
Answers
An object's mass is always A. proportional to its weight.
Since an object's weight is not always its mass, it depends on what forces act upon it. For example, a person standing the moon weighs less than if they were to stand on earth, but they always have the same mass.
Hope this helps!
An object's mass is proportional to its weight. So the correct answer would be an option (A) proportional to.
What are fundamental forces?At the considerable fundamental level, all the forces in the existence (as currently understood) are emanated from only four forces:
The gravitational force
The electromagnetic force
The weak nuclear force
The strong nuclear force
An object's mass is proportional to its weight because weight is determined by the gravitational force acting on an object, which is directly proportional to the object's mass.
Specifically, an object's weight is equal to its mass multiplied by the acceleration due to gravity.
Therefore, if the mass of an object increases, its weight will increase proportionally, and if the mass decreases, the weight will decrease proportionally as well.
Therefore, the correct answer would be option (A) proportional to.
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