The wavelength of green light is 550 nm. If an electron has the same wavelength, determine the electron velocity and momentum. (b) Repeat part (a) for red light with a wavelength of 440 nm. (c) For parts (a) and (b), is the momentum of the photon equal to the momentum of the electron?

1. explain how you calculate the net force in any direction on the box. 2. suppose an upward force of 15n is added to the box. what will be the net vertical force on the box? 3. what force could be applied to the box to make the net force in the horizontal direction zero? explain. 4. suppose a force of 25n to the right is added to the box. what will be the net force to the right?