Astronomers use tiny wobbles of distant stars to detect the presence of planets orbiting those stars. This occurs because the star exerts a gravitational pull on the planet while the planet A) repels the star it orbits. B) exerts no force on the star. C) creates friction between itself and the star. D) exerts a gravitational pull on the star it orbits.

Answers

Answer 1

The answer is D. Exerts a gravitational pull on the star it orbits.

Answer 2

Answer:

D) exerts a gravitational pull on the star it orbits

Explanation:

When light from a distant star appears to slightly red shift or slightly blue shift i.e., it seems to sometimes move away from us and sometimes move towards us, it is most likely to have planets around it. This method is known as Doppler spectroscopy.

This happens because of the unequal masses of the planet and the star the center of gravity does not lie in between them but rather in the star itself. Around this center of gravity the planet and the star will move. This causes the star to wobble.

Related Questions

Maddie and Raul were looking at samples of pond water using the class microscope. They saw some things in the water. They thought the things might be alive, but were not sure. They did a search on-line and found this image. It looked like what they were seeing through the microscope lens. Were the students correct? Explain.

Answers

Yes, it has cell structure with a membrane and nucleus.

The diagram shows light interacting with an object. which object is the light most likely striking?

Answers

Missing options in the question:
a) a window
b) a mirror
c) a plaster wall
d) a steel beam
And missing figure (see attachment)

Solution:
The right answer is a) a window.
The light, in fact, when encountering a window is refracted inside the glass and it changes path. This happens twice, also when the light escapes from the other side of the window. instead, for all the other options the light is simply reflected back without crossing the object, therefore the correct answer is the window.

Answer: a) A window

Explanation:

The answer is a because only a window reflects light like that

Why is carbon monoxide such as dangerous form of indoor air pollution?

Answers

Carbon monoxide is as dangerous form of indoor pollution because it can be deadly.

Your red blood cells in the blood stream have a larger attraction for carbon monoxide that they do for oxygen. This means that you can breathe carbon monoxide It is dangerous, because it decreases the amount of oxygen. fine, but later on, it will eventually kill you. The reason it is so dangerous is because people may be breathing without knowing they are, and once they start. breathing it, then there is no escape.

Do you understand?????

If a bar of copper is brought near a magnet, the copper bar will be

Pennfoster:
A. attracted by the magnet.
B. unaffected by the magnet.
C. repelled by the magnet.
D. made into an induced magnet.

Answers

It will be unaffected by the magnet because it has no magnetic field. If you were to maybe have electricity going through it is the only way it would have anything to do with the magnet.

Answer: Option B

Explanation: Copper is a non-ferrous material (like aluminuim for example), and the only materials affected by a magnet (or a magnetic field) are the ferrous ones, so the correct answer will be the option B, the copper will be unaffected by the magnet.

a 40 N block exerts 20 Pa of pressure on a table. What is the area of the block that is touching the table?

Answers

Pressure is defined as a ratio between force and area at which force is acting:

[tex]pressure= \frac{force}{area} [/tex]

Now we solve this formula for area and we can calculate it.
[tex]area= \frac{force}{pressure} \\ area= \frac{40}{20} \\ area=2 m^{2} [/tex]

In the northern hemisphere, are the day lengths greater of less than 12 hours between the winter solstice and the spring equinox?

Answers

The winter solstice is the occasion of the shortest daylight. After that, daylight slowly increases, until it reaches 12 hours at the Spring equinox. Which hemisphere doesn't matter ... this is true in both uvum.

Which of the following is likely to contribute to geological events that take place on Earth?

Crust undergoing convective currents
Crust being of uniform thickness throughout
Crust being a single layer that surrounds Earth
Crust sitting on top of molten rock of the mantle

Answers

Crust sitting on top of Milton rock of the mantle

Answer:

Crust sitting on top of molten rock of the mantle

Explanation:

Earth's crust is the geological name for what we usually call the surface of the planet, and it is immediately above the molten rock of the mantle, the next layer of the planet.

The crust happens to be fragmented in large pieces or tectonic plates, that can be seen as "drifting" on the mantle's molten rock, also known as magma.

In some areas tectonic plates are drifting away, allowing magma to reach the surface (volcanoes for example), or the seabed (forming mid-oceans crests).

In other areas tectonic plates are crashing each other, causing earthquakes, tidal waves, mountain formation and other relevant geological events.

A machine shovel moves dirt at the rate of 1,100 pounds of dirt 1 foot in 1 second. How many horsepower is this?

Answers

It depends on what direction it moves the dirt.

If it moves the dirt horizontally, then the answer depends on several more
quantities that we don't know about.

If it moves the dirt vertically, then the machine does

(1100 lb x 1 ft) = 1,100 ft-lbs of work per second.

1 horsepower = 550 ft-lbs per second.

So the machine does work at the rate of

(1100 ft-lbs / second) / (550 ft-lbs / second)

= 2 horsepower .

The machine shovel that moves 1,100 pounds of dirt 1 foot in 1 second exhibits 2 horsepower, based on the calculation that compares the work done in foot-pounds per second to the standard definition of one horsepower as 550 foot-pounds per second.

To calculate the amount of horsepower exhibited by a shovel machine moving 1,100 pounds of dirt 1 foot in 1 second, we can use the definition of horsepower. By definition, one horsepower is equal to 550 foot-pounds per second. The machine does 1,100 foot-pounds of work per second (since it moves 1,100 pounds over 1 foot in 1 second).

Now, we calculate the horsepower

Power (hp) = Work (foot-pounds per second) / 550

Power (hp) = 1,100 foot-pounds per second / 550

Power (hp) = 2 hp

Thus, the machine shovel operates at 2 horsepower.

Which statement best describes what Kendall can do? She can measure the volume and mass of the marble, the volume and mass of the water, and the volume and mass of the graduated cylinder. She can measure the volume and mass of the marble, the volume and mass of the water, and the mass of the graduated cylinder. She can measure the volume of the marble and water, and the mass of the graduated cylinder. She can measure the mass of the marble and water, and the volume of the graduated cylinder

Answers

Answer: its b

She can measure the volume and mass of the marble, the volume and mass of the water, and the mass of the graduated cylinder.

Explanation:

i got it wrong it is b not A

Kendall can measure the volume and mass of the marble, the volume and mass of the water, and the mass of the graduated cylinder, therefore the correct answer is option B

What is the matter?

Anything which has mass and occupies space is known as matter, mainly there are four states of matter solid liquid gases, and plasma.

These different states of matter have different characteristics according to which they vary their volume and shape.

As per the given problem The statement that can best describes what Kendall can do is that She can measure the volume and mass of the marble, the volume and mass of the water, and the mass of the graduated cylinder

The right response is option B since Kendall can measure the volume and mass of the marble, the volume and mass of the water, and the mass of the graduated cylinder.

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Cart A of inertia m has attached to its front end a device that explodes when it hits anything, releasing a quantity of energy E. This cart is moving to the right with speed v when it collides head-on with cart B of inertia 2m traveling to the left at the same speed v. The explosive goes off when the carts hit, causing them to rebound from each other. The initial direction of motion of cart A (to the right) is the +x direction.

Part A
If one-quarter of the explosive energy is dissipated into the incoherent energy of noise and deformation of the carts, what is the final velocity of cart A?
Express your answer in terms of the variables E, v, and m.

Part B
If one-quarter of the explosive energy is dissipated into the incoherent energy of noise and deformation of the carts, what is the final velocity of cart B?
Express your answer in terms of the variables E, v, and m.

Answers

We need to write down momentum and energy conservation laws, this will give us a system of equation that we can solve to get our final answer. On the right-hand side, I will write term after the collision and on the left-hand side, I will write terms before the collision.
Let's start with energy conservation law:
[tex]\frac{mv^2}{2}+\frac{2mv^2}{2}+0.75E=\frac{mv_{A}^2}{2}+\frac{2mv_{B}^2}{2}[/tex]
[tex]\frac{3mv^2}{2}+0.75E=\frac{mv_{A}^2}{2}+mv_{B}^2[/tex]
This equation tells us that kinetic energy of two carts before the collision and 3 quarters of explosion energy is beign transfered to kinetic energy of the cart after the collision.
Let's write down momentum conservation law:
[tex]mv+2mv=mv_A+2mv_B\\ 3mv=mv_A+2mv_B\\ [/tex]
Because both carts have the same mass we can cancel those out:
[tex]3v=v_A+2v_B[/tex]
Now we have our system of equation that we have to solve:
[tex]\frac{3mv^2}{2}+0.75E=\frac{mv_{A}^2}{2}+mv_{B}^2\\ 3v=v_A+2v_B[/tex]
Part A
We need to solve our system for [tex] v_a[/tex]. We will solve second equation for [tex]v_b[/tex] and then plug that in the first equation.
[tex]3v=v_A+2v_B\\ 3v-v_A=2v_B\\ v_B=\frac{3v-v_A}{2}[/tex]
Now we have to plug this in the first equation:
[tex]\frac{3mv^2}{2}+0.75E=\frac{mv_{A}^2}{2}+mv_{B}^2\\v_B=\frac{3v-v_A}{2}\\ [/tex]
We will multiply the first equation with 2 and divide by m:
[tex]3v^2+\frac{3E}{2m}=v_{A}^2}+2v_{B}^2\\v_B=\frac{3v-v_A}{2}\\ [/tex]
Now we plug in the second equation into first one:
[tex]3v^2+\frac{3E}{2m}=v_{A}^2}+2v_{B}^2\\ 3v^2+\frac{3E}{2m}=v_{A}^2}+2\frac{(3v-v_A)^2}{4}\\ 3v^2+\frac{3E}{2m}=v_{A}^2}+\frac{9v^2-6v\cdot v_A+v_{A}^2}{2} /\cdot 2\\ 6v^2+\frac{3E}{m}=2v_{A}^2+9v^2-6v\cdot v_A+v_{A}^2}\\ 3v_A^2-6v\cdot v_a+3(v^2-\frac{E}{m})=0/\cdot\frac{1}{3}\\ v_A^2-3v\cdot v_A+ (v^2-\frac{E}{m})=0 [/tex]
We end up with quadratic equation that we have to solve, I won't solve it by hand.
Coefficients are:
[tex]a=1\\ b=-6v\\ c=v^2-\frac{E}{m}[/tex]
Solutions are:
[tex]v_A=\frac{3v+\sqrt{5v^2+\frac{4E}{m}}}{2},\:v_A=\frac{3v-\sqrt{5v^2+\frac{4E}{m}}}{2}[/tex]
Part B
We do the same thing here, but we must express [tex] v_a[/tex] from momentum equation:
[tex]3v=v_A+2v_B\\ v_A=3v-2v_B[/tex]
Now we plug this into our energy conservation equation:
[tex]3v^2+\frac{3E}{2m}=v_{A}^2}+2v_{B}^2\\v_A={3v-v_B}\\ 3v^2+\frac{3E}{2m}=(3v-v_B)^2+2v_B^2\\ 3v^2+\frac{3E}{2m}=9v^2-6v\cdot v_B+v_B^2+2v_B^2\\ 3v^2+\frac{3E}{2m}=3v_B^2-6v\cdot v_B+9v^2\\ 3v_B^2-6v\cdot v_B+9v^2-3v^2-\frac{3E}{2m}=0\\ 3v_B^2-6v\cdot v_B+(6v^2-\frac{3E}{2m})=0 [/tex]
Again we end up with quadratic equation. Coefficients are:
[tex]a=3\\ b=-6v\\ c=6v^2-\frac{3E}{2m}[/tex]
Solutions are:
[tex]v_B=\frac{6v+\sqrt{-36v^2+\frac{18E}{m}}}{6},\:v_B=\frac{6v-\sqrt{-36v^2+\frac{18E}{m}}}{6}[/tex]

Which of the following is a process that occurs at divergent boundaries?
-----------
1. Formation of continental crust
-
2. Magnetic Reversals
-
3. Recycling of Crustals Material
-
4. Formation of Mid-Ocean Ridges

Answers

The appropriate answer is 4. The formation of Mid-Ocean ridges. There are two types of divergent margins: continental separation and oceanic floor spreading. Where the sea floor separates magma upwells and new oceanic crust is formed. Mid ocean ridges are home to hydrothermal vents. These support a unique ecosystem of marine organisms. The Mid- Atlantic Ridge where the African and Eurasian plates separate from the North and South American plates.

A 0.19 F capacitor is desired. What area must the plates have if they are to be separated by a 2.0 mm air gap? a= ?? m^2

Answers

a=.125m^2
Hope this helps you

Which model represents a fraction greater than 3/5

Answers

To represent a fraction greater than 3/5, choose a numerator larger than 3 and match it with a denominator. Fractions like 4/6, 5/7, or 10/12 are examples of fractions greater than 3/5.

Fractions greater than 3/5 are represented by fractions where the numerator is larger than the denominator. For example, 4/6 is greater than 3/5 because the numerator 4 is greater than the denominator 6.

To find a fraction larger than 3/5, you can choose any numerator larger than 3 and pair it with a denominator to form a fraction greater than 3/5, such as 4/6, 5/7, or 10/12.

How does nitrogen from the air get into the bodies of plants and animals?

Answers

Final answer:

Nitrogen is fixed from the atmosphere into a usable form for plants by nitrogen-fixing bacteria, which convert N₂ into nitrates. Plants absorb these nitrates, which are then passed on to animals when they consume the plants. Soil bacteria play a key role in recycling nitrogen back into the atmosphere.

Explanation:Nitrogen Fixation and the Nitrogen Cycle

Nitrogen from the air gets into the bodies of plants and animals primarily through a process called nitrogen fixation. This is carried out by special bacteria known as nitrogen-fixing bacteria. These bacteria convert nitrogen gas (N₂), which plants cannot use, into a form that plants can absorb and utilize. The most common form is nitrate (NO₃⁻), which plants take in through their roots. Animals then obtain nitrogen by consuming plants or other animals that have eaten plants. After the nitrogen has been utilized by living organisms, bacteria in the soil convert waste products and dead organisms back into nitrogen gas through a process called denitrification, completing the nitrogen cycle.

There are different types of nitrogen-fixing bacteria, some live freely in the soil, while others form symbiotic relationships with the roots of certain plants, such as legumes. Cyanobacteria and Rhizobium are notable members of the nitrogen-fixing bacteria group. Additionally, lightning can also transform atmospheric nitrogen into nitrate, providing another source for the nitrogen cycle.

An airplane is accelerating forward due to a force of 3320 newtons acting 30 on it. Then it encounters wind resistance that exerts a backward force of 550 newtons. What is the net force, in newtons, acting on the airplane?

please help

Answers

For the purpose of the problem we can consider only the motion on the x-axis (horizontal direction).
We have two forces:the horizontal component of the force F of 3320 N acting forward, and the backward force of 550 N.
The horizontal component of the forward force is
[tex]3320 N \cdot cos 30^{\circ} = 2875 N[/tex]
So, the net force is
[tex]F_{net} = 2875 N - 550 N =2325 N[/tex]
in the forward direction.

A student look at ocean waves coming into the beach. An oceanwavd with more energy will
A. Have a greater height
B. Have a greater period
C. Travel toward the beach faster
D. Strike the beach with greater frequency

Answers

C. Travel toward the beach faster

It is A, they will have a greater height. I just had this question so it's right.

The tuning fork is producing a wave that contains compressions and rarefactions. It is a ________ wave.
A) compaction
B) transverse
C) latitudinal
D) longitudinal

Answers

The correct answer is D) Longitudinal.

In fact, when the tuning fork is hit, it starts to vibrate. Its vibration is transmitted to the surrounding air, creating an alternating pattern of regions of compression (higher pressure) and rarefaction (lower pressure). These regions then move away from the tuning fork, transporting the sound wave. Since the particles of air, in this case, move back and forth along the direction of propagation of the wave, this is a longitudinal wave.

Answer:

Explanation:

What is the purpose of the three R’s of resource management?

Answers

The three R's of waste management, this waste hierarchy is the guidance suggested for creating a sustainable life.

The three R's of resource management stand for reduce, reuse, and recycle. Together, they form a cornerstone philosophy for managing our resources sustainably.

The first R, reduce, emphasizes the importance of cutting back on the amount of waste we produce and reducing our consumption patterns. Reuse encourages us to repurpose items instead of discarding them, thus extending their life cycle and diminishing the need to consume new resources. Lastly, recycle involves processing used materials to create new products, which conserves raw materials and reduces the need for energy-intensive manufacturing processes.

The purpose of the three R's is to: 1. Distribute resources fairly among people, ensuring that resources do not become excessively depleted by overconsumption. 2. Conserve resources so that they are available for future generations without running the risk of depletion. 3. Use resources in ways that do not harm ecosystems, maintaining the delicate balance of our environment.

Effectively applying these principles contributes to the sustainability of rural and regional communities, and ensures that resources are used wisely. This approach helps to transition society from consumerism to conservation, a concept proposed by environmental advocates like the Pollution Probe and governmental advisory boards such as Canada's Science Council in the early 1970s.

The pictures shows what a student observed when he looked through a hand lens at a penny.
What happens to light passing through a hand lens that makes the image of the penny appear larger?

The light is-

A. Refracted

B. Stopped

C . Absorbed

D . Reflected

Answers

the answer is A. Refracted

Light is refracted when it passes through a hand lens that makes the image of the penny appear larger.

What is Refraction?

This is defined as the process in which waves change direction when they move from one medium to another.

The hand lens changes the speed of the waves which therefore brings about this occurrence.

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Russian ice skater, Alina Zagitova, spins her way to projected Gold in the 2018 Olympics.
During one particular spin, she moves from a camel spin that rotates at about 95. RPM to a tight spin. If her rotational inertia changes from 129kgm² to 32kgm², what is the final spin rate of Miss Zagitova in rad/s and RPM

Answers

Given data:
Initial Rotational Inertia = 129[tex] kgm^{2} [/tex].
Final Rotational Inertia = 32[tex] kgm^{2} [/tex].
Initial RPM = N[RPM] = 95
Initial Angular velocity = ω = [tex](2 \pi /60).N[RPM][/tex] = 9.95
Final Angular Velocity = ω = ?

This question is perfect for applying the law of conservation of angular momentum because there is no net external torque acting on the system.

As angular momentum = (rotational inertia) * (angular velocity)

Initial Angular momentum = Initial Rotational Inertia * Angular Velocity
[tex]L_{i} [/tex]=129 * 9.95 = 1283.55;

And Law of Conservation of momentum is:
Initial Angular momentum = Final Angular momentum
1283.55= 32 * ω
Ans-1(in rad/s): ω= 40.1 rad/s

The conversion formula for [rad/s] to [RPM] = [tex](60/2 \pi ).[/tex]ω
Put the value of ω in the above equation.
Ans-2(in RPM): = 382.9 RPM

-i

Sun warms up earth by

Answers

Hello,

Here is your answer:

The proper answer to this question is that the sun shoots violent radiation waves at the heart and the ozone layer protects it but absorbing so it heats the Earth!

If you need anymore help feel free to ask me!

Hope is helps!

According to the theory of plate to tonics how do two plates interact to form large mountain range

Answers

When the two plates converge or collide they start to build pressure and slowly they lift up and create mountains

The theory of plate tectonics states that the earth's crust is separated into plates that float on the semi molten mantle below. Mountain ranges are formed at convergent plate margins where an oceanic plate subducts beneath a Continental plate. The continuous compression over time cause the rocks to be faulted and folded upwards into ranges. The Andes was formed in this way.

Continental plates also collide. When this happens no plate subducts instead they are both folded and faulted upwards. The Himalayan mountain range was formed this way.

In the northern hemisphere, southern winds tend to move to the ________________ because of the earth's rotation.

Answers

the answer is D. west. i took it on usa test prep.

In the northern hemisphere, southern winds tend to move to the west because of the earth's rotation.

What is the Coriolis effect?

The Coriolis Effect can be described as an apparent effect formed by a rotating frame of reference. The effect takes place when an object moves along a straight path. The Earth which rotates at a fixed speed is the moving frame of reference.

Coriolis force is defined as the perpendicular to the object’s axis. The Coriolis force acts north-south as the Earth spins on its axis from west to east and the Coriolis force is zero at the Equator.

Coriolis force appears to deflect the objects and kind of invisible force. The Coriolis force is calculated by the rate of rotation and mass of the object.

The Coriolis effect generates wind patterns that travel to the east toward the equator and to the west toward the poles near the earth’s surface. These prevailing wind patterns are accountable for moving clouds around the globe and creating weather in different regions.

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Light traveling through air strikes the surface of the four different materials below. which material reflects light but doesn't refract it?
Options:
A-Metal Spoon
B-Water Droplets
C-Diamond
D-Prism

Answers

B....……................

it A) a metal spoon hope this help

A ball is dropped and falls with an acceleration of 9.8 m/s2 downward. It hits the ground with a velocity of 49 m/s downward. How long did it take the ball to fall to the ground?

Answers

First write down what we know.

V=49m/s
Vo=initial velocity=0m/s
A=-9.8m/s²
t=?

Then find an equation that suits the data, in this case its v=vo+a*t

V=Vo+at
plug in the data
49=0+-9.8t
49=-9.8t
divide both sides by -9.8
-5=t

Answer=5 seconds

It would take the ball 5 seconds to fall to the ground.

Given the following data:

Acceleration = 9.8 [tex]m/s^2[/tex]Final velocity = 49 m/s.Initial velocity = 0 m/s (since the ball is starting from rest).

To find how long (time) it took the ball to fall to the ground, we would use the first equation of motion;

Mathematically, the first equation of motion is calculated by using the formula;

[tex]V = U + at[/tex]

Where:

A is the acceleration. V is the final velocity. U is the initial velocity. t is the time measured in seconds.

Substituting the given parameters into the formula, we have;

[tex]49 = 0 + 9.8t\\\\49 = 9.8t\\\\t = \frac{49}{9.8}[/tex]

Time, t = 5 seconds.

Therefore, it would take the ball 5 seconds to fall to the ground.

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HURRY PLEASE
When using a calorimeter, the initial temperature of a metal is 70.4C. The initial temperature of the water is 23.6C. At the end of the experiment, the final equilibrium temperature of the water is 29.8C. What is the final temperature of the metal? ____ C What is the temperature change of the water? ____ C What is the temperature change of the metal? ____ C

Answers

temperature of a metal is29.8

temp. of water is 6.2

temp. change of metal -40.6

Answer:

The final temperature of metal is [tex]29.8\degree \,\mathrm C[/tex].

The temperature change of water is [tex]6.2 \degree \, \mathrm C[/tex]

The temperature change of the metal [tex]-40.6 \degree \, \mathrm C[/tex]

Explanation:

The term equilibrium means initial temperature and final temperature will be same. Thus, the the temperature of the water at thermal equilibrium, the final temperature of the metal must be the same [tex]29.8\degree \,\mathrm C[/tex].

Find the temperature change of water.

[tex]\mathrm {Change \, of\, temperature} =\mathrm{ Final\, temperature} - \mathrm {Initial\, Temperature}\\=29.8\,\mathrm C-23.6\,\mathrm C\\=6.2\,\mathrm C[/tex]

Find the temperature change of metal.

[tex]\mathrm {Change \, of\, temperature} =\mathrm{ Final\, temperature} - \mathrm {Initial\, Temperature}\\=29.8\,\mathrm C-70.4\,\mathrm C\\=-40.6\,\mathrm C[/tex]

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How does a compound eye work?

Answers

The Compound Eye. The arthropod (e.g., insects, crustaceans) eye is built quite differently from the vertebrate eye (and the mollusk eye). Arthropod eyes are called compound eyes because they are made up of repeating units, the ommatidia, each of which functions as a separate visual receptor.

A compound eye, primarily found in arthropods, consists of numerous small units called ommatidia. These units, which include lenses and visual cells, create a mosaic image allowing insects to detect motion efficiently due to the flicker effect.

The compound eye is an optical structure found in certain animals, notably arthropods such as insects and crustaceans. Unlike the human eye, which has a single lens, the compound eye is made up of numerous small visual units called ommatidia. Each ommatidium is a self-contained photoreception unit that consists of a lens, cone, visual cells, and pigment cells. These units capture parts of the visual field and send nerve impulses to form a mosaic image, similar to a pattern of light and dark dots.

Flicker effect is a distinctive feature of compound eyes which makes them highly sensitive to motion. As an object moves across an insect's visual field, some ommatidia are exposed to light while others are not, creating a flicker that the insect can detect. This property allows insects to respond quickly to moving objects, which is crucial for their survival. Animals with compound eyes, like honeybees, are particularly adept at recognizing motion, preferring to visit wind-blown flowers over stationary ones.

The visual acuity in compound eyes is determined by the number of ommatidia and the fineness of the mosaic they create.

How do tests with crash dummies, seat belts, and air bags illustrate newton’s First law of motion

Answers

Newtons first law of motion states that an object at rest will remain at rest and an object in motion will stay in motion unless acted upon by an unbalanced force. Seat belts and air bags provide the stopping force for the crash test dummies.

Answer:

Newton law of inertia.

Explanation:

Newton first law states that if any object is in the motion or is in the state of rest then it will remain in that state till the external force is applied on that object. Inertia is the main reason of having seat belts and air bags in the car.

In this case, when seat belt trapped into the passenger than passenger experience same state of motion as car has.

When the car experience any kind of the collision then the car will stop abruptly. In this case seat belt and air bag will help in stopping the motion of passenger in the forward direction.

Therefore Newton's law of inertia is illustrated in test with seat belts, crash dummies, and air bags.

HELP PLS! AND MAKE SURE YOU ARE CORRECT ON ALL OF THEM DUE TOMORROW

Question 2
Which layer of the atmosphere has the most air pressure?
exosphere
stratosphere
troposphere
mesosphere

Question 3
Which best explains heating by convection?
Air molecules touch the warm ground, heating them up.
Warm air rises and takes heat with it; eventually it cools and sinks.
Sunlight travels through space without the aid of fluids or solids.
Land and ocean absorb and re-emit heat from the sun.

Question 7
Which conditions are usually the effect of a low air pressure system?
clear, dry weather
cloudy, wet weather
cold, dry weather
hot, dry weather

Question 8
What would cause rain showers to continue over a particular area for several days?
a high-pressure system
a stationary front
low humidity
a warm front

Question 9
What effect does an ocean have on the climate?
Rushing water from tides lead to dry air.
There is no influence on climate from an ocean.
Cool ocean air causes a cool climate.
Warm ocean air causes a dry climate.

Answers

Question 2) Troposphere. This is in fact the layer of atmosphere closer to the ground, and therefore it is the layer with most air above it, therefore it has the largest atmospheric pressure. Indeed, atmospheric pressure decreases as going higher in altitude.

Question 3) Warm air rises and takes heat with it; eventually it cools and sinks.This is exactly what occurs in heating by convection, not only with air but with every fluid: the warm fluid goes up and releases its heat, cooling down and becoming cold fluid and then going down again.

Question 7) Cloudy, wet weather.A low-pressure system is an area with lower pressure than the surrounding areas. Because of this, it is generally associated with the formations of clouds, and consequently precipitations (so, wet weather).

Question 8) A stationary front. A stationary front occurs when a pair of air masses point into two opposite directions. This system tends to remain in the same postion for a long time, leading to clouds and precipitations.

Question 9) Cool ocean air causes a cool climate. In fact, if wind blows from the ocean to the land, it brings the cool air from the ocean to the land, causing cool climate.

question 2 is mesosphere

Which landform represents the boundary between the land and an ocean or a lake?

Answers

Coastline or seashore

Answer:

coastline

Explanation:

its the coastline

Other Questions

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