Homework #1

Due 9/27/99

(1) Cheng Problem 2.5

(2) Cheng Problem 2.7

(3) Cheng Problem 2.9

(4) Cheng Problem 2.20

(5) Cheng Problem 2.24

(6) Cheng Problem 2.26

(7) Cheng Problem 2.32

(8) Cheng Problem 3.5

(9) Cheng Problem 3.6

(10) Cheng Problem 3.10

(11) Cheng Problem 3.11

(12) Cheng Problem 3.13

(13) alpha-particles (helium nuclei) are fired at heavy nuclei whose charge is 50 times that of an electron. What is the closest possible distance of approach of an alpha-particle and a nucleus? You may assume that each heavy nucleus is heavy enough that it does not move.

(14) A charge Q is uniformly distributed throughout a sphere of radius a. Calculate the work that must be done to bring a 1 Coulomb charge up to the center of the sphere from infinity.