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A particle known as a pion lives for a short time before breaking apart into other particles. Suppose it is moving at a speed of 0.990c, and an observer who is stationary in a laboratory measures the particle's lifetime to be 5.00 10-8 s.
(a) What is the lifetime according to a hypothetical person who is riding along with the pion? s
(b) According to this hypothetical person, how far does the laboratory move before the pion breaks apart? m
A circular wire loop of radius 0.50 m lies in a plane vertical to a uniform magnetic field of magnitude 0.40 T. If in 0.10 s the wire is reshaped from a circle to a square, but remains in the plane, what is magnitude of the average induced emf in t..
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A source delivers an AC voltage of the form ?v = 92.2 sin (60?t), Find the rms voltage of the source
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