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Skater A, mass 55.0 kg, moving at 14.0 m/s bumps into stationary Skater B, mass 65.0 kg. After the collision, Skater A moves at an angle of 53.1o from her original direction, while Skater B moves at an angle of 36.9o from Skater A's original direction. Both skaters move on the frictionless, horizontal surface of the rink.
(a) What are the final speeds of the two skaters?
(b) Is kinetic energy conserved? If not, what fraction of the initial kinetic energy is lost?
An aluminum bar has a length of 1.8 m and a rectangular cross section with sides of 3.4 mm and 7.0 mm. What is the strain for this value of the stretch
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Initially at a temperature of 89.0?C, 0.300m3 of air expands at a constant gauge pressure of 1.40×105Pa to a volume of 1.43m3, Compute the total work done by the air
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Two 15cm long flat glass plates are separated by a T (10 micro m) thick spacer at one end, Find a relation among spacing between adjacent fringes delta x, lamda, L, and T
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