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Unformatted text preview: v ~ 20 m/s (~45 mi/h) P ~ 1340 W (~1.8 hp) Burns ~ 5.4 kW, 19 MJ/hour, 4600 kCal/hour Average daily food energy intake for Tour de France Cyclists: ~10,000 kCal/ day (~7 lb of uncooked pasta) Which of the following forces are conservative forces? A. Gravity B. Spring force C. Friction D. two of the above E. three of the above A mass m is connected to a rigid massless rod of length L . The mass is released from the vertical as shown. What is its speed v at the bottom of its motion? m +y L v = ? A. gL B. (gL) 1/2 C. (2gL) 1/2 D. (4gL) 1/2 A block of mass m is released from the top of the frictionless track shown. What is its speed v at the top of the looptheloop? R h v = ? A. 2gh B. (2gR) 1/2 C. [2g(hR)] 1/2 D. [2g(h2R)] 1/2...
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 Fall '07
 LIEPE, M
 Physics, Force, Power, Calorie, a. b. c., b. c. d., A. B. C. D, Pcyclist

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