Question a if a particles speed increases by a factor of, Ask an Expert

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Question: a. If a particle's speed increases by a factor of three, by what factor does its kinetic energy change?

b. Particle A has half the mass and eight times the kineticenergy of particle B. what is the speed ratio va/vb?

c. If a rotating skater triples her rate of rotation bydecreasing her moment of inertia by 1/3, by what factor does herrotational kinetic energy change?

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