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OpenStudy (anonymous):
A 9.70-g bullet has a speed of 1.23 km/s. (a) What is its kinetic energy in joules? (b) What is the bullet's kinetic energy if its speed is halved? (c) What is the bullet's kinetic energy if its speed is doubled?
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OpenStudy (anonymous):
Kinetic energy = 1/2 m v^2 Be sure to change the velocity into meters/second, in order for your answer to be in joules.
OpenStudy (anonymous):
Oh, and the mass needs to be in kilograms.
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