Determining the change in kinetic energy
A 65 kg human sprinter can accelerate from rest to 10 m/s in 2.9 s. During the same interval, a 33 kg greyhound can accelerate from rest to 20 m/s. Compute (a) the change in kinetic energy and (b) the average power output for each.
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How many extra electrons are on this particular oil drop (given the presently known charge of the electron)?
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