= -e, 4. (20 pts) Muons are negatively charged particles, with the same charge as electrons Q that shoot toward Earth from space at incredible speeds. Thunderstorm clouds have a charge separation within them generating a large electric field which we will approximate as a parallel plate capacitor. + + (a) (5 pts) A muon travels through a thunderstorm cloud and is perpendicular to the parallel "plates." Once the muon passes through the plates it loses 2.1 x 10-10J of kinetic energy. What is the voltage difference across the thundercloud? (b) (5 pts) If the distance between separated charges in the thundercloud is the electric field inside the cloud? 20, 000 m what is (c) (5 pts) If the cloud has an area of 108 m, what is the cloud's capacitance?