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Serway_PSE_quick_ch01

# Serway_PSE_quick_ch01 - about its numerical value To...

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Physics for Scientists and Engineers, 6e Chapter 1 – Physics and Measurement

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In a machine shop, two cams are produced, one of aluminum, one of iron. Both cams have the same mass. Which cam is larger? 1 2 3 33% 33% 33% 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 1. the aluminum cam 2. the iron cam 3. Both cams have the same size.
Because the density of aluminum is smaller than that of iron, a larger volume of aluminum is required for a given mass than iron.

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True or False: Dimensional analysis can give you the numerical value of constants of proportionality that may appear in an algebraic expression. 1 2 50% 50% 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 1. True 2. False
False. Dimensional analysis gives the units of the proportionality constant but provides no information

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Unformatted text preview: about its numerical value. To determine its numerical value requires either experimental data or geometrical reasoning. For example, in the generation of the equation x = ½ at 2, because the factor ½ is dimensionless, there is no way of determining it using dimensional analysis. The distance between two cities is 100 mi. The number of kilometers between the two cities is 1 2 3 33% 33% 33% 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 1. smaller than 100 2. larger than 100 3. equal to 100 Because kilometers are shorter than miles, a larger number of kilometers is required for a given distance than miles....
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Serway_PSE_quick_ch01 - about its numerical value To...

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