Two brothers, frank and dion, are on roller skates and standing still when they push off from one another. frank's mass is 103.4 kg. dion's mass is 51.6 kg. after they push off, frank has a velocity of -7 m/s. what will dion's velocity be?

Any color picture tube and electric field exerts a net force of magnitude 1.68x 10^-13 n on an electron the rest mass of an electron is 9.11 x 10^-13 what is the electron acceleration?

The transfer of heat through the movement of a gas or liquid a. convection b. conduction c. radiation

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final