A slit with a width 0.10 mm is located 11 m from a screen. If the light with λ = 600 nm is passed during this slit, what is the distance among the central bright fringe and the third dark fringe on the screen? A proton traveling at 36.0° with respect to a magnetic field of strength 3.00 mT experiences a magnetic force of 7.1*10-17 N.
a) Compute the proton's speed.
b) Compute its kinetic energy.