Satellites in a circular, low Earth-orbit move at 8km/s.?
927181
What's the problem?  You have the conversion factors.  8km = 8/1.6 miles,  1 sec = 1/3600 hr.  First you have 8/1.6 mi/sec = 8/1.6 mi/sec*3600 sec/hr = [   ]mi/hr (you figure it)
52386
The easiest answer I can give you is assuming you mean that our rotational velocity (radians per second) goes to 0 instantaniously. Being that the world is rotating 360 degrees (2pi radians) every 24 hours (86400 seconds), we are turning 2pi radians per 86400 seconds or .0000727 radians per second. Assuming you are close to the equator, you will be launched (well perspectively you will continue moving at normal speed as the Earth abruptly stops) forward at approximately 1037.6 miles per hour, being that the earth rotates 15 degrees per hour at 69.7 miles per degree.
80397
About 2,270 orbit the Earth.
693642
The orbital velocity of the satellite depends on its altitude above Earth. The nearer Earth, the faster the required orbital velocity. At an altitude of 124 miles (200 kilometers), the required orbital velocity is just over 17,000 mph (about 27,400 kph). To maintain an orbit that is 22,223 miles (35,786 km) above Earth, the satellite must orbit at a speed of about 7,000 mph (11,300 kph). That orbital speed and distance permits the satellite to make one revolution in 24 hours. Since Earth also rotates once in 24 hours, a satellite at 22,223 miles altitude stays in a fixed position relative to a point on Earth's surface. Because the satellite stays right over the same spot all the time, this kind of orbit is called "geostationary." Geostationary orbits are ideal for weather satellites and communications satellites. \n\nIn general, the higher the orbit, the longer the satellite can stay in orbit. At lower altitudes, a satellite runs into traces of Earth's atmosphere, which creates drag. The drag causes the orbit to decay until the satellite falls back into the atmosphere and burns up. At higher altitudes, where the vacuum of space is nearly complete, there is almost no drag and a satellite can stay in orbit for centuries (take the moon as an example). \n\nSatellites usually start out in an orbit that is elliptical. The ground control station controls small onboard rocket motors to provide correction. The goal is to get the orbit as circular as possible. By firing a rocket when the orbit is at the apogee of its orbit (its most distant point from Earth), and applying thrust in the direction of the flight path, the perigee (lowest point from Earth) moves further out. The result is a more circular orbit
97099
Please take a look at:\n\nhttp://en.wikipedia.org/wiki/Orbital_velocity
218504
Minimum speed that a spacecraft has is always gerater than the escape velocity i.e. over 11 Km/Sec. This means you can reach to USA under 20 mins or so!
371210
3 * 10^8 m/s (approx.- this is used for the purpose of calculations)\nthe exact value is hard to calculate but the closest approximation is 299,792,458 m/s
594787
The speed depends on what you want to accomplish.  If a rocket pushes a craft slower than 5 miles per second (mps), the craft will fall back to Earth.  If the rocket gets the craft to 5 mps, the craft can orbit Earth in more or less a circle.  If a rocket gets a craft to 7 mps or more, the craft will leave Earth all together.
333816
moon moves in clockwise direction
345281
None, at least no natural ones.  There may be artificial satellites sent there though.
883966
Okay, here you are.\n\nAlex's rocket:\n\nDistance: 900 feet \nRate: 112.5 f/s\nTime: 8 seconds\n\nKeesha's rocket:\n\nDistance: 900 feet\nTime: 5 seconds\nRate: 180 f/s
582803
The moon has its own speed in space. But the earth pulls it toward it.  \n\nif any object is moveing with some speed and if a force is applied latterally (perpendicular to its direction of motion)  and pointed toward a fixed point then the body will move in circular motion\n\nSince the earth's pull is perpendicular to the motion of the moon and is always pointed toward the center of the eaarth the moon moves always round the earth.
1042534
"Near close approach around 4h44m UT July 3, this 600-meter/yard diameter asteroid\n\n Passes only 268,873 miles from the Earth, only  1.1 times the distance to the moon away.\n\nPeaking at  visual magnitude 11.1 four hours later, users of telescopes of 6 inches (15cm)  \n\nor larger can enjoy observing a  rare celestial  treat.  At time of close approach, 2004 XP14\n\n races along at 8.323 degrees per hour, or a mean lunar diameter every four minutes!\n\nSuch a rapid speed results in direct motion becoming visible, second by second. Just \n\nas naked eye Earth satellites are seen crossing the sky, 2004 XP14 will both amaze and\n\nchallenge the observer, both visually and those taking images."\n\nFrom www.lpl.arizona.edu\n\nHope it helps.
151096
There are two types of satellites: polar and geostationary. Polar satellites circle the earth, covering the north pole and the south pole on every circle, at an altitude of about 850 km. A geostationary satellite "moves with the earth" and is always situated over the same place over the equator, at an altitude of about 36000 km.
1050743
A radar that is based in space!
323083
The Sun is rotating aroun the centre of the Milky Way and heading in the direction of Alpha Hercules at the speed of 150 miles a second.\n\nMakes Roger Bannister's sub-4-minute mile look rather slow doesn't it?
315964
At the equator, about 1000 mph, at the poles not much.\n\nhttp://curious.astro.cornell.edu/question.php?number=665