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It can be expected to change gradually over time, but the difference from one year to the next, or even in thousands of years, will be insignificant.
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Are orbiting astronauts accelerating?
Anything in an orbit is constantly accelerated. If that sounds peculiar to you, it's because you think 'accelerate' means 'speed up'. It doesn't. It means 'change speed or direction or both'. If an object is not moving at a constant speed in a straight line, then it's accelerating. An object in an orbit is constantly changing direction. So it's constantly being accelerated, even if its speed never changes.
How fast can an asteroid go?
Asteroids orbit the sun at several tens of thousands of miles per hour. The speed varies depending on the orbit.
What does an orbiting shuttle that follows the curve of Earths surface as it moves at a constant speed have to be?
Mainly, it has to: (1) Move at a sufficiently high speed. Near the Earth's surface, that would be about 7.9 kilometers per second (7900 meters per second). You can multiply the meters per second by 3.6 if you prefer it in kilometers/hour. (2) Be sufficiently far from Earth, to avoid air resistance. A height somewhere between 100 and 200 kilometers is required, for a relatively stable orbit. Comment: I think "in a circular orbit" is what the question is looking for as the answer.
Does the speed of a satellite in orbit depend on its mass?
No. The speed of any orbiting body depends only on the energy of its orbit, meaning mainly its distancefrom the central body.When a Space Shuttle astronaut performs a 'space walk', and momentarily unhooks his feet from thehull of the shuttle, he and the shuttle are both in earth orbit. The astronaut and the shuttle have thesame orbital speed, and they stay close together, even though the shuttle has somewhat more massthan the astronaut has.
What time of the year does the earth orbit faster around the sun?
Orbiting bodies travel faster at the closest point of approach to the primary. Planets and comets travel fastest at perihelion, the closest point of approach to the Sun. With comets, it's really obvious; Halley's Comet, for example, orbits between close the Venus to beyond Neptune. In its 76-year orbit, it spends about 3 years inside the orbit of Jupiter, and 73 years beyond it. Same with Earth and the other planets, although the eccentricity of Earth's orbit is only about 3%. So the difference between "fast at perihelion" and "slow at aphelion" isn't very much. The Earth reaches perihelion in January, so that's when it is moving fastest. If the people in Australia wanted to brag about how their summers are hotter than ours in the Northern Hemisphere because they're closer to the Sun during their summer, they would have a very good point!
What is earths speed in the orbit?
8600000000mph
Do AUs measure the speed of light?
No. An A.U. is the average radius of the Earths orbit around the Sun. (which can be measured in light years or light minutes (about 8) if you want).
An orbit in which a satellite travels at the same speed as the earths rotational speed is called?
That's a 'geosynchronous' orbit. If it also happens to be over the equator, so that the satellite appears to stay at the same point in the sky, then it's a 'geostationary' orbit.
When are speed and average speed the same?
Average speed is an average value of speed over a given time. If your speed is constant (not changing), then your average speed will equal your speed at any given moment in time.
Is the earths orbit faster than the speed of light?
We know that the answwer must be "No", simply because we know that NOTHING is faster than the speed of light.
What is the average orbit speed of the planets?
5.43 km per second.
What is the orbital speed of Sedna?
Its speed will vary greatly as its orbit is highly eccentric. It will be slower when further out from the sun on its 11,000 year orbit. Its average speed is around 1.04 km/s.
What is an object always changing if it is moving in a circle?
If an object is moving in a circle (like a teather ball or a planet in orbit, although orbit is not a perfect circle), then its velocity is always changing (remember that velocity is speed AND direction, and since the direction is changing, the velocity is changing). It's position is also always changing as a result of having a velocity.
What speed does the earth orbit?
The Moon orbits Earth at an average speed of 3,700 km/h (2,300 mph).
What is the name for a planet's speed in its orbit?
It is the orbital velocity (speed and direction) or orbital speed (rate of motion). It is usually stated as "average orbital speed" but is actually "mean orbital speed."
What is the speed of a satellite that moves in an eliptical orbit around the earth?
If a satellite is in an elliptical orbit around the Earth, the Earth will be at one of the focii. The speed of the satellite will then constantly be changing. It will move the fastest when it is nearest to the Earth (perigee) and slowest when it is furthest away (apogee).
Why is the actual speed usually different from its average speed?
car is not always moving at constant speed
