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A ski starts from rest and slides down a 29° incline 100 mlong. Use energy methods.
(a) If the coefficient offriction is 0.09, what is the ski's speed at the base of theincline?
________ m/s
(b) If the snow is level at the foot of the incline and has thesame coefficient of friction, how far will the ski travel along the level?
_______ m
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A transverse wave on a string is described by the equation y(x, t) = (2.29 cm) sin[(107 rad/s)t + (18 rad/s)x]. How fast does the wave move along the string
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