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(a) What is the best coefficient of performance for a heat pump that has a hot reservoir

College Physics for AP® Courses | 1st Edition | ISBN: 9781938168932 | Authors: Gregg Wolfe, Irina Lyublinskaya, Douglas Ingram ISBN: 9781938168932 372

Solution for problem 41 Chapter 15

College Physics for AP® Courses | 1st Edition

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College Physics for AP® Courses | 1st Edition | ISBN: 9781938168932 | Authors: Gregg Wolfe, Irina Lyublinskaya, Douglas Ingram

College Physics for AP® Courses | 1st Edition

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Problem 41

(a) What is the best coefficient of performance for a heat pump that has a hot reservoir temperature of 50.0C and a cold reservoir temperature of 20.0C ? (b) How much heat transfer occurs into the warm environment if 3.60107 J of work ( 10.0kW h ) is put into it? (c) If the cost of this work input is 10.0 cents/kW h , how does its cost compare with the direct heat transfer achieved by burning natural gas at a cost of 85.0 cents per therm. (A therm is a common unit of energy for natural gas and equals 1.055108 J .)

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Block 4 lecture 1 - Visual system 1. Name 5 structures outside the visual globe that contribute to vision Eyelids and eyelashes - protection Lacrimal gland - produce tears Frontal eye fields and eye muscles - three cranial nerves control eye movement - 3,4, and 6 Conjunctiva - membrane that covers the inner surface of the eyelids and the sclera ​highly vascular ​Conjunctivitis “pink eye” ​ nfection resulting in blood vessel inflammation 2. List the 3 major layers of the visual globe and the structures contained within each layer Outer -----> inner Fibrous layer - sclera and cornea -----> Vascular layer - choroid - iris - ciliary bodies -----> Neural tunic - retina 3. Discuss how each of the following structures contributes to vision and Name one visual disorder associated with each visual structure a. Conjunctiva - membrane that covers the inner surface of the eyelids and the sclera h​ ighly vascular C​ onjunctivitis “pink eye” infection resulting in blood vessel inflammation b. Cornea - provides most (75%) focusing of the eye ​avascular Astigmatism m ​ isshapen cornea resulting in blurry vision c. Sclera - white of the eye, gives eye shape d. Iris - colored part of the eye, muscle that regulates pupil size 1. Pupillary dilator muscles - enlarge pupil sympathetic division 2. Pupillary constrictor muscles - decrease diameter of pupil - parasympathetic division

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Chapter 15, Problem 41 is Solved
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Textbook: College Physics for AP® Courses
Edition: 1
Author: Gregg Wolfe, Irina Lyublinskaya, Douglas Ingram
ISBN: 9781938168932

Since the solution to 41 from 15 chapter was answered, more than 253 students have viewed the full step-by-step answer. This full solution covers the following key subjects: . This expansive textbook survival guide covers 34 chapters, and 2282 solutions. This textbook survival guide was created for the textbook: College Physics for AP® Courses, edition: 1. The full step-by-step solution to problem: 41 from chapter: 15 was answered by , our top Physics solution expert on 03/09/18, 08:07PM. The answer to “(a) What is the best coefficient of performance for a heat pump that has a hot reservoir temperature of 50.0C and a cold reservoir temperature of 20.0C ? (b) How much heat transfer occurs into the warm environment if 3.60107 J of work ( 10.0kW h ) is put into it? (c) If the cost of this work input is 10.0 cents/kW h , how does its cost compare with the direct heat transfer achieved by burning natural gas at a cost of 85.0 cents per therm. (A therm is a common unit of energy for natural gas and equals 1.055108 J .)” is broken down into a number of easy to follow steps, and 103 words. College Physics for AP® Courses was written by and is associated to the ISBN: 9781938168932.

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(a) What is the best coefficient of performance for a heat pump that has a hot reservoir