A hockey puck (mass = 2.5 kg) leaves the players stick with a speed of 40 m/s and slides on the ice for 40 meters before coming to rest. What is the friction coefficient between the puck and the ice?
(unitless)

if a star is moving toward earth, its light waves appear to be squeezed together. hope it

a charge 3q is at the origin, and a charge −2q is on the positive x axis at x=a. part a where on the x-axis would you place a third charge so it would experience no net electric force? enter an expression for the exact answer, which will involve a square-root sign. (do not enter an approximate decimal answer.)

when it gains or loses electrons

the answer is kevlar