Gasoline yields 4.8 x 107 joules per kg when burned. The density of gasoline is approximately thesame as that of water, and 1 gal = 3.8 L. How much energy does your car use on a trip of 100 mi ifyou get 25 mi per gallon?A) 7.3x 108 JB) 3.7 x 108 JC) 4.6 x 108 JD) 6.2x 108 J

From the given information, the car use 4 gallons of gasoline for 100 miles trip.

Answered: Gasoline yields 4.8 x 107 joules per kg…

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter11: Energy And Its Conservation

Section: Chapter Questions

Problem 1STP

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Similar questions

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A certain steel railroad rails 13 yd in length and weighs 70.0 lb/yd How much thermal energy is required to increase the length of such a rail by 3.0 mm? .Note: Assume the steel has the same specific heal as iron.
A 50.0-kg student evaluates a weight loss program by calculating the number of times she would need to climb a 12.0-m high flight of steps in order to lose one pound (0.45 kg) of fat. Metabolizing 1.00 kg of fat can release 3.77 107 J of chemical energy and the body can convert about 20.0% of this into mechanical energy. (The rest goes into internal energy.) (a) How much mechanical energy can the body produce from 0.450 kg of fat? (b) How many trips up the flight of steps are required for the student to lose 0.450 kg of fat? Ignore the relatively small amount of energy required to return down the stairs.
A particle of mass 2.0 kg moves under the influence of the force F(x)=(3/x)N. If its speed at x=2.0 m is v=6.0 m/s, what is its speed at x = 7.0 m?
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While running, a person dissipates about 0.60 J ofmechanical energy per step per kilogram of body mass. If a60. - kg person develops a power of 70. W during a race, how fastis the person running? (Assume a running step is 1.5 m long.)
2. 300J of energy are transferred to a system in the form of heat while the thermal energy increase by150J. How much work is done by or on the system?

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Gasoline yields 4.8 x 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? A) 7.3x 108 J B) 3.7 x 108 J C) 4.6 x 108 J D) 6.2x 108 J