Questions
At what depth below the surface of earth, the value of g is the same as that at a height of 5 km?
a
1.25 km
b
5 km
c
7.5km
d
10 km
detailed solution
Correct option is D
g01-dR=g01-2hR ⇒ d=2h=10 km.Talk to our academic expert!
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The weight of an object in the coal mine, sea level and at the top of the mountain are respectively W1, W2 and W3, then
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