how velocity is used in space
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heya!
Out into space
Once at a steady cruising speed of about 16,150mph (26,000kph) in orbit, astronauts no more feel their speed than do passengers on a commercial airplane
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Explanation:
Objects that travel around a planet are called satellites. Each complete journey a satellite makes around the planet is called an orbit.
Our Earth has one natural satellite – the Moon. However, since October 1957 many thousands of artificial (human-made) satellites have been placed in orbits around the Earth.
To stay in orbit, a satellite has to travel at a very high velocity, which depends on the height. So, typically, for a circular orbit at a height of 300 km above the Earth's surface, a speed of 7.8 km/s (28,000 km/h) is needed. At this speed, the satellite will complete one orbit around the Earth in 90 minutes.
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