Amoving particle encounters an external electric field that decreases its kinetic energy from 9970 ev to 6340 ev as the particle moves from position a to position b the electric potential at a is 55.0 v and that at b is 19.0 v determine the charge of the particle include the algebraic sign or with your answer

Rank the torques on the five doors shown in the figure above from least to greatest. note that the magnitude of all the forces is the same

Física: un futbolista patea hacia el arco con una velocidad de 15m/ah, calcular: a)el alcance para un ángulo de tiro de 25? , b) el tiempo que el balón permanece en el aire.

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