23. Planet Alpha has the same radius and 4 times the mass of the Earth. What is the best estimate for the magnitude of the gravitational field at the surface of planet Alpha? a. 10 m/s? b. 2.5 m/s? c. 20 m/s? d. 40 m/s?
23. Planet Alpha has the same radius and 4 times the mass of the Earth. What is the best estimate for the magnitude of the gravitational field at the surface of planet Alpha? a. 10 m/s? b. 2.5 m/s? c. 20 m/s? d. 40 m/s?
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Transcribed Image Text:23. Planet Alpha has the same radius and 4 times the mass of the Earth. What is the
best estimate for the magnitude of the gravitational field at the surface of planet
Alpha?
a. 10 m/s?
b. 2.5 m/s?
c. 20 m/s?
d. 40 m/s?
24. The planet Theta has 3 times the gravitational field strength and 4 tirmes the mass of
the Earth. How does the radius of Theta compare with the radius of Earth?
a. rTheta = rEarth
2
b. rTheta = E"Earth
4
C. TTheta
=-TEarth
3
d. TTheta
VZrEarth
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