A body on the surface of the Earth weighs 400 lb. The radius of the Earth is about 4,000 miles. If this same body were placed on a 4,000-mile-high tower, its weight would be
a. 100 lbs.
b. 200 lbs.
c. 400 lbs.
d. 800 lbs.
e. 16,000 lbs.
a
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