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.
If you mean that the shuttle stays in the same spot over the earth as the earth moves, then it is called Geosynchronous orbit.
When something is orbiting the Earth, it is actually falling toward the Earth. But because a space shuttle has such a great velocity (speed w/ direction) it misses hitting the Earth's surface. Image you throw a baseball. The baseball follows the path of a curve called a parabola, but the parabola is actually part of an eclipse (elongated circle). Now image if you threw the baseball so hard that when it fell toward the Earth, it actually missed the "edge" of the Earth following the path of the eclipse around the Earth. That baseball would then be launched into orbit. (Of course you would have to throw this baseball at a speed of 11 km/s).
A lunar module is a small craft that is used as an orbiting spacecraft and to travel between the moon's surface. It was the first man-made vehicle that was able to leave outside the earth's atmosphere.
The Mercury Messenger is an orbiting space probe observing the planet Mercury. We generally reserve the word "rover" for a tracked or wheeled vehicle which moves around on the surface, and we haven't tried to do that yet.
You can use Kepler's Third Law to calculate this.
In a parallel circuit, all the branches are joined together at their start and again at their end by a conductor (usually wire).Now, the surface of a conductor (ideally) is an equipotential surface. That is, any point of its surface has the same electric potential.And since the voltage across each branch equals the difference in electric potentials between its start and its end, and these potentials are the same for every branch, it follows that the voltages across each branch must be equal to each other.
Its surface tension hold it in a logical shape (why is a bubble spherical?)
Gravity is proportional to the mass and inversely proportional to the square of the distance of the centre of the body or bodies.As the shuttle orbits at a comparatively low altitude and the mass remains constant the force diminishes only slightly. Being in free-fall does not mean there is no gravity.
48m2
its handy to ignore the shuttle weight in these calcs, unless you need immense accuracy, but its included anyway.G = newtons gravitational constant = 6.672 * 10 ^-11 ( m^3 / kg^-1 / s^-2)m1 = mass earth = 5.974 * 10 ^24 (kg)m2 = mass shuttle = 25 000 (kg)r = orbital radius from earth centre to shuttle = 6 371 + 450 = 6 821 km= 6 821 000 metresacceleration due to gravity= (G *( m1+m2 ))/ r^2= 8.5669 ( m/s)/s
300 m^2
48m2
The Mars rover
almost as much as the shuttle's weight on Earth's surface
Usually orbiting Earth, that is, in an orbit around Earth, but fairly close to Earth - a few 100 km. distance from Earth's surface, at most.Usually orbiting Earth, that is, in an orbit around Earth, but fairly close to Earth - a few 100 km. distance from Earth's surface, at most.Usually orbiting Earth, that is, in an orbit around Earth, but fairly close to Earth - a few 100 km. distance from Earth's surface, at most.Usually orbiting Earth, that is, in an orbit around Earth, but fairly close to Earth - a few 100 km. distance from Earth's surface, at most.
Orbiting satellites.
They use robots. Yes. They also get data from orbiting spacecraft.
a surface of constant density