Calculate the kinetic energy of an electron with a wavelength of3.0 pm and then calculate the kinetic energy of a photon of the same wavelength.

Contrast the force of gravity between these pairs of objects a 1 kg mass and a 2 kg mass that are 1 m apart and two 2 kg masses that are 1 m apart

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

For the car in the picture ,in which direction is the normal force? -into the screen -down -out of the screen -up