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The gravitational force on a 1 kg object at a distance r meters
from the center of the earth is F
4.10¹4
p²
newtons. Find
the work done in moving the object from the surface of the
earth to a height of 3.9 · 106 meters above the surface. The
radius of the earth is 6.4 · 106 meters.
●
Round your answer to two decimal places.
Work done =
8.08
108 joules

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