11th Edition

ISBN: 9780135902028

Author: SAUNDERS

Publisher: PEARSON

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The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.

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The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.

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Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experime…

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Textbook Question

Chapter 12.1, Problem 2AE

Trades Management The following graph shows the hourly energy consumption of eight different appliances. Study the graph and answer the questions that follow.

Chapter 12.1, Problem 2AE, Trades Management The following graph shows the hourly energy consumption of eight different

(a) Which appliance uses the most energy in an hour?
(b) Which appliance uses the least energy in an hour?
(c) How many Btu/hr does a gas barbecue use?
(d) How many Btu/day (24 hr) would a 50-gal water heater use?
(e) Is there any difference between the energy consumption of the range and that of the top burners plus oven?
(f) How many Btus are used by a log lighter in 15 min?
(g) What is the difference in energy consumption between a 50-gal water heater and a clothes dryer?

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Chapter 12.1, Problem 1AE

Chapter 12.1, Problem 3AE

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A: Tan Latitude / Tan P A = Tan 04° 30'/ Tan 77° 50.3' A= 0.016960 803 S CA named opposite to latitude, except when hour angle between 090° and 270°) B: Tan Declination | Sin P B Tan 052° 42.1'/ Sin 77° 50.3' B = 1.34 2905601 SCB is alway named same as declination) C = A + B = 1.35 9866404 S CC correction, A+/- B: if A and B have same name - add, If different name- subtract) = Tan Azimuth 1/Ccx cos Latitude) Tan Azimuth = 0.737640253 Azimuth = S 36.4° E CAzimuth takes combined name of C correction and Hour Angle - If LHA is between 0° and 180°, it is named "west", if LHA is between 180° and 360° it is named "east" True Azimuth= 143.6° Compass Azimuth = 145.0° Compass Error = 1.4° West Variation 4.0 East Deviation: 5.4 West

Chapter 12 Solutions

MATHEMATICS FOR THE TRADES MYMATHLAB AC

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Solution Summary: The author analyzes the bar graph of energy consumption of eight different appliances. The height of the vertical bar corresponding to the appliance ‘range’ is large when compared to all the other appliances, indicating that the consumption per hour by ‘

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Chapter 12 Solutions