hw10_3221spring2011

hw10_3221spring2011 - 1 Phy 3221 Due: March 30, 2011...

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1 Phy 3221 Due: March 30, 2011 Homework set # 10 Problem 1: Tarzan can swim through still water with a speed c 0 . To impress Jane, he swims directly across the Zambesi river (his path is at a right angle to the shore) and then returns to his starting place. Where he is swimming, the Zambesi is a distance d wide, but flows with a speed of v . a. How long does it take Tarzan to cross the river and then return? b. Jane appears bored by all of this, so now Tarzan decides to swim a distance d directly upstream and then swim back downstream to the original spot on the shore. How long does it take for Tarzan to make this round trip? c. What is the difference in these times in the limit that v ± c 0 ? This means: subtract the two answers, and write your answer in terms of the small quantity v/c 0 . Then take a Taylor expansion of the result, and keep only the dominant term in powers of v/c 0 Problem 2: A passenger train 120 m long passes a long railroad platform in Winnipeg. The train is moving with a speed of 0
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This note was uploaded on 12/15/2011 for the course PHY 3221 taught by Professor Chan during the Spring '08 term at University of Florida.

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hw10_3221spring2011 - 1 Phy 3221 Due: March 30, 2011...

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