meteor whose mass was about 2.0×108kg struck the Earth (mE=6.0×1024kg) with a speed of about 27 km/s and came to rest in the Earth. Part A What was the Earth's recoil speed (relative to Earth at rest before the collision)? Part B What fraction of the meteor's kinetic energy was transformed to kinetic energy of the Earth? Part C By how much did the Earth's kinetic energy change as a result of this collision?

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