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05-08-2018
Chemistry

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at what height above the earth surface will the gravitational acceleration be 5m

physics

at what height above the earth surface will the gravitational acceleration be 5mphysics class=

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isyllus isyllus

08-08-2018

Answer: -

The acceleration due to gravity at height r = a = GM/r²

Rearranging

r² = GM /a

= (6.674 x 10⁻¹¹ x 5.972 x 10²⁴ ) / 5

r = 8.917 x 10⁶ m

r = 8917 Km

Now Radius of earth = 6371 Km

So height = 8917 - 6371 = 2546 Km

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