Electrons in an X-ray tube accelerate through a potential difference of 104 Volt before striking a target. If an electron produces one photon on impact with the target, what is the minimum wavelength of the resulting X-rays?

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