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

This preview shows pages 1–2. Sign up to view the full content.

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:

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

## 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.

### Page1 / 6

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

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online