The gear motor can develop to 1/2 hp when it turns at 300 rev/min. if the shaft has a diameter of 1/2 in. determine the maximum shear stress in the shaft

Ways that industry and agriculture use physical properties to separate substances

You throw a small rock straight up from the edge of a highway bridge that crosses a river. the rock passes you on its way down, 7.00 s after it was thrown. what is the speed of the rock just before it reaches the water 28.0 m below the point where the rock left your hand? ignore air resistance.

A1.5m wire carries a 2 a current when a potential difference of 52 v is applied. what is the resistance of the wire?