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Find the acceleration due to gravity in a mine of depth 640 m if the value at the surface is 9.800 m/s ^2. The radius of the earth is 6400 km.

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asked Mar 31, 2018 in Physics by anukriti (13,536 points) ● 5 ● 10 ● 19

Find the acceleration due to gravity in a mine of depth 640 m if the value at the surface is 9.800 m/s 2. The radius of the earth is 6400 km.

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answered Mar 31, 2018 by faiz (82,347 points) ● 6 ● 6 ● 11
selected Mar 31, 2018 by anukriti
 
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Let g' be the acceleration due to gravity in mine.

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+1 vote
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If g is the acceleration due to gravity on the earth’s surface,.
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