Homework 2, due Mon April 11, 2011
		Physics 12: Spring 2011

Ristinen and Kraushaar, Chap 1:  Questions and Problems:  8,10,11
			Chap 1: Multiple Choice: 7,8,9,11,14
			Chap 2: Questions and Problems: 1,3,4,7,12
			Chap 2: Multiple Choice: 2,4


1. Convert 15 gallons of gas to kWh.
2. If electricity is 12 cents/kWh, calculate the cost for electricity
	of the energy in 15 gallons of gas and compare to cost of the gasoline 
	itself.
3. Opinion Question (no right answer)  
	What do you think about the growing human population?  Will it
	continue?  What do you think will eventually happen?
	How many people do you think is the right amount for planet Earth?
	Can or should anything be done about it?