CAPA 1 ANS - ehsanum Set 1 Due Wed at...

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Set 1, Due Wed, Jan 19, 2011 at 23:59 Go to problem [1 ] [2 ] [3 ] [4 ] [5 ] [6 ] [7 ] [8 ] [9 ] [10 ] [11 ] [12 ] [13 ] [14 ] [15 ] [16 ] [17 ] 1-17 Status: Y Y Y Y Y Y Y N Y Y N - Y Y Y Y Y 1. 1 . [1 point, 10 tries] Bicyclists in the Tour de France reach speeds of 27.8 miles per hour (mi/h) on flat sections of the road. What is the speed in kilometers per hour (km/h)? Answer: 44.7 km/h 2. 2 . [1 point, 10 tries] What is the speed in meters per second (m/s)? Answer: 12.4 m/s 3. 3 . [1 point, 10 tries] The volume of liquid flowing per second is called volume flow rate Q and has the dimensions of [L] 3 /[T]. The flow rate of liquid through a hypodermic needle during an injection can be estimated with the following equation: The length and radius of the needle are L and R , respectively both of which have the dimension [L]. The pressures at opposite ends of the needle P 2 and P 1 , both which have dimensions of {[M]/[L][T] 2 }. η represents the viscosity of the liquid and has dimensions of {[M]/[L][T]}. π stands for pi and, like the number 8 and the exponent n, has no dimensions. Using dimension analysis, determine the value of n in the expression for Q (Enter the integer as a decimal with no units). Answer:
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This note was uploaded on 02/26/2011 for the course PHYSICS 1L03 taught by Professor Dudley during the Spring '08 term at McMaster University.

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CAPA 1 ANS - ehsanum Set 1 Due Wed at...

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