1. The asteroid belt circles the sun among the orbits of Mars and Jupiter. One asteroid has a period of 5.0 earth years.
a. What is the asteroid's orbital speed?
b. What is the asteroid's orbital radius?
2. The moon's force is what percent of the sun's force?
3. What is the gravitational force of the moon on the earth?
4. What is the gravitational force of the sun on the earth?