# s2005exam2 - Physics 140 Hour Exam II March15 2005 Please...

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Physics 140. Hour Exam II March15, 2005 1. A two kilogram hanging plant is being held up by a spring. The spring is stretched 10 centimeters from its equilibrium length. If you now add one kilogram of water to the plant’s pot, how far will the spring be stretched from its equilibrium length? a. 10 centimeters b. 15 centimeters c. 20 centimeters d. 25 centimeters 2. When you jump on a trampoline, you stretch an elastic surface up and down. You and the trampoline have a combined total potential energy that changes as you bounce. The point at which your combined total potential energy is lowest is when you are located a. at the lowest point in your bounce, when you have dropped as low and deep into the trampoline’s surface as possible. b.
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## This note was uploaded on 04/10/2008 for the course PHYS 140 taught by Professor Perdekamp/pitts during the Spring '08 term at University of Illinois at Urbana–Champaign.

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s2005exam2 - Physics 140 Hour Exam II March15 2005 Please...

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