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The best answer is simply: That's the way gravity works.

If you take Newton's deceptively simple formula for the gravitational force

between two masses, and if you have enough geometry and calculus to

massage the formula around, look at it from different angles, and follow it

through to some of its implications, then some wonderful things happen.

The first result is that all of Kepler's laws of planetary motion fall out on the

table, and you no longer have to ask "Why do the planets do that ?" They

do everything they do because that's the way gravity works.

You also discover that neither the size of the orbit nor the speed in orbit depends

on the mass of the orbiting body. The speed depends only on the size of the orbit.

You're happy about this because it means that an astronaut can do a "space walk" ...

separating himself from his spacecraft but still staying in the same Earth orbit that

the spacecraft is in, so that he doesn't go sailing away from the spacecraft just

because he has less mass.

And you also discover the strange fact that the larger the orbit, the slower the

orbiting body moves. An astronaut on a space walk in low-earth-orbit is orbiting

faster than the moon is!

It's just the way gravity works.

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โˆ™ 2011-10-31 08:48:54
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Q: Why a satellite in low earth orbit moves faster than a satellite in geostationary orbit?
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Why do satellites remain in geostationary orbit?

For a geostationary orbit, the distance from Earth is calculated in such a way that the satellite takes one day (23h56m, to be precise) to go once around Earth. Thus, the satellite moves together with Earth's rotation; from the viewpoint of somebody standing on Earth, the satellite is always in the same direction.For a geostationary orbit, the distance from Earth is calculated in such a way that the satellite takes one day (23h56m, to be precise) to go once around Earth. Thus, the satellite moves together with Earth's rotation; from the viewpoint of somebody standing on Earth, the satellite is always in the same direction.For a geostationary orbit, the distance from Earth is calculated in such a way that the satellite takes one day (23h56m, to be precise) to go once around Earth. Thus, the satellite moves together with Earth's rotation; from the viewpoint of somebody standing on Earth, the satellite is always in the same direction.For a geostationary orbit, the distance from Earth is calculated in such a way that the satellite takes one day (23h56m, to be precise) to go once around Earth. Thus, the satellite moves together with Earth's rotation; from the viewpoint of somebody standing on Earth, the satellite is always in the same direction.


An earth satellite in an elliptical orbit moves with the?

"The Earth"


What is a rhyme about how earth moves?

the earth moves faster than you or i can run the earth moves faster than the bullet from a gun


How does the satellite transmit tv programs inspite of the fact that it moves all the time?

Answer: A geostationary satellite is any satellite which is placed in a geostationary orbit. Satellites in geostationary orbit maintain a constant position relative to the surface of the earth. Geostationary satellites do this by orbiting the earth at approximately 22,300 miles above the equator. At this altitude, the speed of a satellite's rotation around the world is identical to the rotational speed of the world itself. While the satellite is actually moving; but moving at the same speed as the rotational speed of the world itself, it is always appears in the same azimuthal (angle); latitudinal and longitudinal position of the sky over the equator. Being geostationary allows an earth receiving & transmitting station to maintain bidirectional communications with satellites without the need of having to always reposition the earth based "dish" like antenna. A practical example is one's home whose television is connected to a unidirectional (receives only) dish antenna. If the satellite that the dish antenna is aimed at was not geostationary, people would lose the satellite's signal as soon as it deviated one degree from its position. In general, all data, audio & video satellites are launched into a geostationary orbit.


How do you tell the difference between a star and a satellite?

sattelites moves faster


Why is the moon called the satellite of the earth?

That means that it moves around the Earth.


A satellite moves in a circular orbit around the Earth at a speed of 4819 ms. Determine the period of the satellite's orbit in hours.?

It first depends on the type of orbit the satellite is in. If it is in a geostationary orbit, you can determine the speed by using the speed of the Earth's rotation at the equator (465m/sec), because a geostationary satellite orbits above the equator at 22,300 miles above. If it uses a geosynchronous orbit, that is, anywhere else but above the Equator, your distance above the Earth's surface is the same but your speed will differ as the inclination of the satellite is below 90 degrees. If the orbit is a LEO or MEO, your speed will obviously be faster, but the altitude of the satellite has a broader range, so knowing the altitude is essential to your calculation. If the orbit is elliptical, that is an entirely different set of equations, as satellites in elliptical orbits are 300 miles away from the Earth at their fastest to catapult them into their next pass and skyrocket up to 23,000 miles.


An earth satellite in a elliptical moves with what speed?

The speed is variable; faster while closer to the Earth, and slower further away. But the actual speed varies by the orbital distance.


What force is acting on a satellite?

Assuming the satellite moves around Earth, the only relevant force is Earth's gravitation.


Which planet earth or neptune moves faster?

Earth.


Which moves faster the moon or earth?

Earth spins faster than the moon orbits Earth.


Why does a satellite does not fdall into earth?

Because it moves fast. A satellite will, in fact, continuously "fall" (be accelerated) towards Earth, meaning that it changes its direction. Because it moves fast. A satellite will, in fact, continuously "fall" (be accelerated) towards Earth, meaning that it changes its direction. Because it moves fast. A satellite will, in fact, continuously "fall" (be accelerated) towards Earth, meaning that it changes its direction. Because it moves fast. A satellite will, in fact, continuously "fall" (be accelerated) towards Earth, meaning that it changes its direction.

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