2007-02-07 12:01:43 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
It varies. Some are in synchronous orbits, and appear to stay in the same position over the earth. Others, like the moon, make an 800,000 mile trip every 28 days.
2007-02-07 12:40:19 · answer #1 · answered by Jerry P 6 · 0⤊ 0⤋
That question depends upon the satellite you are talking about.
Some satellites are in low orbits around the Earth. Some are much higher in outer space. More to the point, however, some are in what is called a geostationary orbit swinging around the Earth at the exact same speed that the Earth is revolving. And,
some are traveling rather quickly around the Earth. So actual speeds are pretty much dependent upon which satellite you mean.
In general you can tell people that satellites are moving at about 18,000 miles per hour. That should satisfy most people. If you locate a nit picker who wants the exact speed, you will have to
find out exactly which satellite he/she is talking about.
2007-02-07 21:28:59 · answer #2 · answered by zahbudar 6 · 0⤊ 0⤋
It takes a lot of energy to put a satellite in orbit. They need to reach at least 120 miles (200 km) above the earth at a speed of over 18,000 mph (29,000 km/h) to get in to orbit. Multistage rockets are used to do this.
2007-02-07 20:21:55 · answer #3 · answered by Anonymous · 0⤊ 0⤋
It depends on their altitude. Satellites in lower orbits move at about 17,000 mph
2007-02-07 20:05:54 · answer #4 · answered by Arkalius 5 · 0⤊ 0⤋
Depends on altitude - the formula to determine it is:
V=1,113,263/v3,963 + A.
Where:
V= velocity in miles/hour
A= height in miles.
2007-02-07 20:10:37 · answer #5 · answered by kmsmifla2007 2 · 0⤊ 0⤋
About 18,000km per hour.
2007-02-07 20:23:26 · answer #6 · answered by ................................ 2 · 0⤊ 0⤋