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Find the depth at which the value of g b...

Find the depth at which the value of g becomes 25% of that at the surface of the earth. (Radius of the earth = 6400 km)

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To find the depth at which the value of \( g \) becomes 25% of that at the surface of the Earth, we can follow these steps: ### Step 1: Understand the formula for gravity at depth The acceleration due to gravity \( g_d \) at a depth \( d \) inside the Earth is given by the formula: \[ g_d = g \left(1 - \frac{d}{r}\right) \] where: ...
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