Gasoline yields 4.8 × 107 joules per kg when burned. The density of gasoline is approximately the same as that of water, and 1 gal = 3.8 L. How much energy does your car use on a trip of 100 mi if you get 25 mi per gallon?
What will be an ideal response?
7.3 × 108 J
Physics & Space Science
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What will be an ideal response?
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The average kinetic energy of the molecules in a gas is a measure of
a. volume. b. density. c. temperature. d. heat content.
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Regular disturbances that carry energy through matter or space:
a) Crest b) Wave c) Energy d) Trough
Physics & Space Science
A spring with spring constant k = 800 N/m is compressed 12 cm from its equilibrium position. A spring with spring constant k = 400 N/m has the same elastic potential energy as the first spring when its extension is
a. 0.060 m. b. 0.085 m. c. 0.12 m. d. 0.17 m. e. 0.24 m.
Physics & Space Science