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Exploring Energy ConceptsA 2.5 × 3.5 × 6 in. brick whose

Fundamentals of Engineering Thermodynamics | 7th Edition | ISBN: 9780470495902 | Authors: Michael J. Moran, Howard N. Shapiro, Daisie D. Boettner, Margaret B. Bailey ISBN: 9780470495902 50

Solution for problem 4P Chapter 2

Fundamentals of Engineering Thermodynamics | 7th Edition

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Fundamentals of Engineering Thermodynamics | 7th Edition | ISBN: 9780470495902 | Authors: Michael J. Moran, Howard N. Shapiro, Daisie D. Boettner, Margaret B. Bailey

Fundamentals of Engineering Thermodynamics | 7th Edition

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Problem 4P

Exploring Energy Concepts

A 2.5 × 3.5 × 6 in. brick whose density is 120 lb/ft3 slips off the top of a building under construction and falls 69 ft. For g = 32.0 ft/s2, determine the change in gravitational potential energy of the brick, in ft · lbf.

Step-by-Step Solution:

Step 1 of 4:

The density and volume of a brick are given. The brick falls from the top of the newly constructing building. We are going to find the change in gravitational potential energy of the brick. We need to convert the units into SI standard to solve the problem easily.

Volume of the brick V = 2.5 × 3.5 × 6 in3 = 52.5 in3 = 0.00086 m3

The density of the brick ρ = 120 lb/ft3 = 1922.22 kg/m3

Height of the building h = 69.0 ft = 21 m

The acceleration due to gravity g = 32.0 ft/s2 = 9.81 m/s2

Step 2 of 4:

The gravitational potential energy at the top of the building

Where m is the mass of the brick

Step 3 of 4

Chapter 2, Problem 4P is Solved
Step 4 of 4

Textbook: Fundamentals of Engineering Thermodynamics
Edition: 7
Author: Michael J. Moran, Howard N. Shapiro, Daisie D. Boettner, Margaret B. Bailey
ISBN: 9780470495902

The full step-by-step solution to problem: 4P from chapter: 2 was answered by , our top Engineering and Tech solution expert on 07/20/17, 09:01AM. This textbook survival guide was created for the textbook: Fundamentals of Engineering Thermodynamics, edition: 7. This full solution covers the following key subjects: brick, Energy, exploring, concepts, Construction. This expansive textbook survival guide covers 14 chapters, and 1501 solutions. Fundamentals of Engineering Thermodynamics was written by and is associated to the ISBN: 9780470495902. Since the solution to 4P from 2 chapter was answered, more than 239 students have viewed the full step-by-step answer. The answer to “Exploring Energy ConceptsA 2.5 × 3.5 × 6 in. brick whose density is 120 lb/ft3 slips off the top of a building under construction and falls 69 ft. For g = 32.0 ft/s2, determine the change in gravitational potential energy of the brick, in ft · lbf.” is broken down into a number of easy to follow steps, and 47 words.

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