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Calculate the kinetic energy of the earth due to its rotation about its own axis. Mass of the earth is 6 x 10^24 kg, and radius of earth is 6400 km.

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Calculate the kinetic energy of the earth due to its rotation about its own axis. Mass of the earth is 6 x 1024 kg, and radius of earth is 6400 km.

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Mass of the earth, M = 6 x 1024 kg.

Radius of the earth, R = 6400 km = 6.4 x106

M.I. or earth (i,e., sphere) about its axis is 

Now, angular velocity of the earth is

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