physics....
posted by khevna
Spherical planet A has mass m and radius r. Spherical planet B has mass and ￼ radius 2r. How does the gravitational field strength at the surface of planet B compare to the gravitational field
strength at the surface of planet A?
a) It is the same as planet A
b) It is twice that of planet A
c) It is half that of planet A
d) It is oneeighth that of planet A
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