A long straight wire carries a current of 66 A. An electron, traveling at 1.0 ✕ 107 m/s, is 3.0 cm from the wire. What is the magnitude of the magnetic force on the electron if the electron velocity is directed as follows?

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