Answer Keys for Exercise #2
1. Area of tennis ball : A1 = 4 π R
2
Area of Basketball : A2= 4 π (4 X R)
2
= 4 π R
2
X 16
A2/A1 = 16
3. Period = 1/frequency = 1/1.5 = 0.67 s
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This note was uploaded on 04/29/2008 for the course PS 303 taught by Professor Modi during the Spring '08 term at University of Texas.
 Spring '08
 MODI

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