During his "off-time" from chasing the Roadrunner, Wile E. Coyote likes to dabble in the realm of the subatomic. One afternoon, Wile E. Coyote is attempting to determine the closest distance a 3.96 MeV alpha particle, of mass 6.6 x 10^-27 kg, can approach a fixed nucleus of uranium, of charge +92e. What is that distance, in meters? Calculate the ratio of the gravitational force between the proton and electron of a uranium atom to the electrical force between them for the orbital radius observed above. Which of the two forces identified above can be considered negligible?