A baseball player puts a baseball on a batting tee. The baseball bat is able to deliver 4.0*10^5 W of power and is in contact with the ball for 0.70s and a distance of 1.4cm. What is the net force applied to the ball?

Ais useful when you need a simple machine to you separate two things. a. lever b. screw c. pulley d. wedge

The slope of a velocity time graph over any interval of time gives the during that interval

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.