Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)
10th Edition
ISBN: 9781337399128
Author: Russell E. Smith
Publisher: Cengage Learning
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Chapter 5, Problem 29RQ
Add letter designations to the symbols to indicate the following:
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Problem 14.78
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The spring has a stiffness k = 200 N/m and an
unstretched length of 0.5 m. It is attached to the 4.6-kg
smooth collar and the collar is released from rest at A.
Neglect the size of the collar. (Figure 1)
Part A
Determine the speed of the collar when it reaches B.
Express your answer to three significant figures and include the appropriate units.
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με
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Problem 15.96
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In (Figure 1), take m₁ = 3.4 kg and m =
4.8 kg.
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Determine the component of the angular momentum Ho of particle A about point O.
Express your answer in kilogram-meters squared per second to three significant figures.
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?
kg m2/s
Determine the component of the angular momentum Ho of particle B about point O. Suppose that
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The 5-kg collar has a velocity of 7 m/s to the right when
it is at A. It then travels down along the smooth guide
shown in (Figure 1). The spring has an unstretched
length of 100 mm and B is located just before the end
of the curved portion of the rod.
Determine the speed of the collar when it reaches point B, which is located just before the end of the curved portion of the rod.
Express your answer to three significant figures and include the appropriate units.
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με
v =
Value
Units
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Part B
?
What is the normal force on the collar at this instant?
Express your answer to three significant figures and include the appropriate units.
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μÅ
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Chapter 5 Solutions
Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)
Ch. 5 - What are the three types of electrical diagrams...Ch. 5 - A load is an electrical device that __________. a....Ch. 5 - What is the major load of an air-conditioning...Ch. 5 - Identify the following symbols for loads:Ch. 5 - Prob. 5RQCh. 5 - What do the terms normally open and normally...Ch. 5 - What is the difference between a magnetic starter...Ch. 5 - Prob. 8RQCh. 5 - Draw a heating and a cooling thermostat and...Ch. 5 - A three-pole contactor would allow how many paths...
Ch. 5 - A disconnect switch is used to __________. a. open...Ch. 5 - What determines whether a pressure switch opens or...Ch. 5 - Identify the following symbols for...Ch. 5 - What is the difference between a thermal overload...Ch. 5 - What is the purpose of a transformer? Draw the...Ch. 5 - Which of the following is not a requirement for an...Ch. 5 - What is the purpose of a legend on a schematic...Ch. 5 - A factual diagram is _____. a. a pictorial diagram...Ch. 5 - Identify the following symbols for safety devices.Ch. 5 - Prob. 20RQCh. 5 - True or False: The schematic diagram tells service...Ch. 5 - What is the difference between a pilot duty and a...Ch. 5 - What type of switch would be used to open or close...Ch. 5 - What is the purpose of a fuse in an electrical...Ch. 5 - True or False: A solenoid valve is a device that...Ch. 5 - What is a signal light used for in a control...Ch. 5 - Change the following normally open elements from...Ch. 5 - Draw the symbols for the following electrical...Ch. 5 - Add letter designations to the symbols to indicate...Ch. 5 - Draw a symbol for a magnetic starter.
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