With what magnitude of force does a ball of mass 0.75 kilograms need to be hit so that it accelerates at the rate of 25 meters/ secondæ? assume that the ball undergoes motion along a straight line.

What happens in a global convection cell

Part a constants huck finn walks at a speed of 0.60 m/s across his raft (that is, he walks perpendicular to the raft's motion what is huck's velocity (speed and direction) relative to the river bank? express your answer to three significant figures and include the appropriate units. relative to the shore)

Which is the correct symbol for an isotope of iodine with 53 protons and 78 neutrons?