If a planet has 9 times the radius of the Earth, but has the same density as the Earth, what is the gravitational acceleration at the surface of the planet? (g = 9.8 m/s2)
a. 29.4 m/s2
c. 265 m/s2
b. 88.2 m/s2
d. 39.2 m/s2
Question 2
An Earth satellite is orbiting at a distance from the Earth's surface equal to two Earth radii. At this location, the acceleration due to gravity is what factor times the value of g at the Earth's surface?
a. There is no acceleration since the satellite is in orbit.
b. 1/9
c. 1/4
d. The answer is not given.
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