What is the pattern regarding the effect of changing two variables – the mass of the cylinder and the height from which the cylinder is dropped? Use the terms ""gravitational potential energy"" and ""kinetic energy"" in your answer.

Ten students stand in a circle and are told to make a transverse wave. what best describes the motion of the students? each student bumps the shoulder of his or her neighbor. at the exact time, all students take a step to the right. the students skip clockwise, going in a circular motion. one at a time, each student lifts his or her hands up and then down.

The boy of mass 30 kg is at r1= 2 meters from the fulcrum. of the girl is 45 kg, at what r2 must she sit so that they are balanced ?

Do you agree with scientist’s prediction about the warming of alaska and other polar regions?