An 8.0 kg ball travelling at 4m/s collides head on with a 3kg ball travelling at 14m/s . The balls bounce off each other and travel back the way they came. The 8.0 ball away at 2m/s . Calculate the velocity of the 3kg ball after the collision

An inclined plane wrapped around a metal shaft is a a. lever b. screw c. pulley d. wedge

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Consider a u-tube whose arms are open to the atmosphere. now equal volumes of water and light oil (ρ = 49.3 lbm/ft3) are poured from different arms. a person blows from the oil side of the u-tube until the contact surface of the two fluids moves to the bottom of the u-tube, and therefore, the liquid levels in the two arms are the same. if the fluid height in each arm is 30 in, determine the gage pressure exerted by the person on the oil by blowing.