5. Compare the wavelength for an electron (mass = 9.11 x 101 kg) traveling at a speed of 1.0 x 107 m/s with for a ball (mass = 0.10 kg) traveling at 35 m/s. J Force x Distance (-) Nm (-) kgm/sm, J-1 kgm/s

6. Calculate the de Broglie wavelength of an electron traveling at 1.00% of the speed of light. (The mass of the electron is 9.11 x 10 kg and the speed of light is 3.00 x 10 m/s)

7. A hydrogen atom absorbs a photon of UV light, and its electron enter the n=4 energy level. Calculate (a) the change in energy of the atom and (b) the wavelength (in nm) of the photon? Hint: looking at the Hydrogen atom line spectrum nid=1