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Calculate the kinetic energy that the earth (ME = 5.98× 1024 kg) has because of (a)...

Calculate the kinetic energy that the earth (ME = 5.98× 1024 kg) has because of (a) its rotation about its own axis (RE = 6.38× 106 m) and (b) its motion around the sun (Ro = 1.50× 1011 m). Assume that the earth is a uniform sphere and that its path around the sun is circular. For comparison, the total energy used in the United States in one year (365.25 days) is about 9.3× 1019J. Answer to 3 significant figures.

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