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Q. A cardinal (Richmondena cardinalis) of mass 3.5×10-2 and a baseball of mass 0.15 have the same kinetic energy. What is the ratio of cardinal's magnitude of momentum to the magnitude of baseball's momentum?

Q. A box slides down a 40° ramp with an acceleration of 1.260 m/s2. Find out the coefficient of kinetic friction between box and ramp.

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