Find the escape velocity from the surface of Mars. Use a value of kg for the mass of Mars and a value of km for its radius.
Find the escape speed of a satellite located at the Moon’s orbit about Earth, assuming the Moon is sufficiently far from the Satellite to not influence its escape speed. Use a value of km for the Moon’s orbital radius and use a value of kg for the Earth’s mass.
The distance from a solar system to the center of the Milky Way is 27 000 light years. Assume that the mass contained in the sphere of radius 27 000 light years is 100 billion solar masses, taking one solar mass as kg. What is the escape velocity for the Milky Way from the position of this solar system?