Question: If the radius of the Earth is R and a satellite is in a circular orbit at a height h above the Earth\'s surface, what is the expression for the orbital speed v of the satellite?

Options:

1. v = sqrt(GM/(R+h))
2. v = sqrt(GM/R)
3. v = sqrt(GM/(R-h))
4. v = sqrt(GM/(R^2 + h^2))

Correct Answer: v = sqrt(GM/(R+h))

Solution:

The orbital speed v of a satellite is given by v = sqrt(GM/(R+h)), where M is the mass of the Earth and G is the gravitational constant.