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Physics 14 Online
OpenStudy (anonymous):

Kinetic and Potential Energy Please help A car has a kinetic energy of 1.9 * 103 joules. If the velocity of the car is decreased by half, what is its kinetic energy? a) 2.2 x 10^2 joules b) 4.7 x 10^2 joules c) 5.2 x 10^2 joules d) 5.8 x 10^3 joules

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