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Get Full Access to College Physics - 1 Edition - Chapter 15 - Problem 19pe
Get Full Access to College Physics - 1 Edition - Chapter 15 - Problem 19pe

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# Construct Your Own a car trip into the mountains.

ISBN: 9781938168000 42

## Solution for problem 19PE Chapter 15

College Physics | 1st Edition

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Problem 19PE

Problem 19PE

Consider a car trip into the mountains. Construct a problem in which you calculate the overall efficiency of the car for the trip as a ratio of kinetic and potential energy gained to fuel consumed. Compare this efficiency to the thermodynamic efficiency quoted for gasoline engines and discuss why the thermodynamic efficiency is so much greater. Among the factors to be considered are the gain in altitude and speed, the mass of the car, the distance traveled, and typical fuel economy

Step-by-Step Solution:
Step 1 of 3

Solution 19PE

Let m be the mass of the car. Let v be the speed gained by the car and h be the altitude the car reaches. Let  M be the mass of fuel burned and E be the energy in Joules release by burning 1 kg of fuel. Therefore,

Input energy = (M) (E)

Also,

Output work = 1  mv2 +mgh

2

The overall efficiency of the car is lower than thermodynamic efficiency because the fuel conversion efficiency is very low.

Step 2 of 3

Step 3 of 3

##### ISBN: 9781938168000

This textbook survival guide was created for the textbook: College Physics , edition: 1. The answer to “Construct Your Own a car trip into the mountains. Construct a problem in which you calculate the overall efficiency of the car for the trip as a ratio of kinetic and potential energy gained to fuel consumed. Compare this efficiency to the thermodynamic efficiency quoted for gasoline engines and discuss why the thermodynamic efficiency is so much greater. Among the factors to be considered are the gain in altitude and speed, the mass of the car, the distance traveled, and typical fuel economy” is broken down into a number of easy to follow steps, and 83 words. College Physics was written by and is associated to the ISBN: 9781938168000. This full solution covers the following key subjects: efficiency, Car, Fuel, thermodynamic, trip. This expansive textbook survival guide covers 34 chapters, and 3125 solutions. Since the solution to 19PE from 15 chapter was answered, more than 306 students have viewed the full step-by-step answer. The full step-by-step solution to problem: 19PE from chapter: 15 was answered by , our top Physics solution expert on 07/07/17, 04:39PM.

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