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 3, Problem 15RQ
To determine
Whether the statement is true or false.
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reading is 0.4 mas SHOWN.
Assume h₁ = 0.4 m, h₂ = 0.5 m.
(a) Do you know the specific weight of mercury?
(b) Do you know the specific weight of gasoline?
(c) Do you know the specific weight of oil?
(a) YHg
=
133,000
(b) Ygas
= 6867
(c) Yoil =
8829
eTextbook and Media
Part 2
N/m³
N/m³
N/m³
A+
Gasoline
t
+B
Oil
-Mercury
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Did you calculate the pressure difference between two locations using the correct specific weight?
Did you assume that the pressures in fluid are the same in a horizontal plane even though they are in different tubes?
Are the calculated pressures in a column of fluid always higher at lower elevations?
Did you account for the fact that the two horizontal tubes of the U-tube are above the ground?
Concepts: The pressure in a fluid is a function of the specific weight of the fluid and the height relative to a reference.
Pressure is constant in a horizontal plane of a continuous mass of fluid.
(a) What is the initial pressure difference? (PA-PB)
(b) What is…
Find the solution of the following Differential Equations
1)
"-4y+3y=0
3) "+16y=0
2) y"-16y=0
4) y"-y-6y=0
5) y"+2y=0
7) y"+y=0, (#0)
9) y"-y=0, y(0) = 6, y'(0) = -4
11) y"-4y+3y=0, y(0)=-1,
13)
y'(0) = -5
"+2y+2y=0
15) y"-9y=0
17) y"-4y=0
6) y"-2y+2y=0
8)
"+4y+5y=0
10) y"-9y=0, y(0) = 2, y'(0) = 0
12) y"-3y+2y= 0, y(0)=-1,
y'(0) = 0
14) 4y+4y+y=0
16) "+6y+12y=0
18) 4y+4y+17y=0
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Chapter 3 Solutions
Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)
Ch. 3 - What is a series circuit?Ch. 3 - What is a control circuit?Ch. 3 - Safety devices in an electrical circuit are...Ch. 3 - How are series circuits used in air-conditioning...Ch. 3 - Why are series circuits used for most control...Ch. 3 - The current draw in a series circuit is _____. a....Ch. 3 - The voltage drop of a series circuit is _____. a....Ch. 3 - How would switches used as safety devices be...Ch. 3 - Draw a series circuit with a thermostat, a...Ch. 3 - Two identical 115-volt light bulbs connected in...
Ch. 3 - Prob. 11RQCh. 3 - Prob. 12RQCh. 3 - Parallel circuits are used in the air-conditioning...Ch. 3 - Why are parallel circuits used in the...Ch. 3 - Prob. 15RQCh. 3 - Prob. 16RQCh. 3 - If two 115-volt loads were connected in parallel...Ch. 3 - What is a series-parallel circuit?Ch. 3 - Why are series-parallel control circuits important...Ch. 3 - Draw a series-parallel circuit with one switch...Ch. 3 - What is the resistance of a parallel circuit with...Ch. 3 - What is the resistance of a parallel circuit with...Ch. 3 - What is the total ampere draw of a parallel...Ch. 3 - What is the voltage of a series circuit with four...Ch. 3 - What is the resistance of a series circuit with...
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- Access Pearson Mastering Engineering Back to my courses Course Home Course Home Scores Review Next >arrow_forwardAccess Pearson Course Home Scoresarrow_forwardAccess Pearson Mastering Engineering Back to my courses Course Home Course Home Scoresarrow_forwardCan you answer this question?arrow_forwardA gear has a gear wheel with 16 teeth. The gear should be dimensioned for the highest and lowest gear ratio. Looking for output power, torque, speed?nin= 2000 rpmmin = 30Nmn=0,9a max= 450 mmModule 4Gear limitsz1 z213 13-1614 14-2615 15-4516 16-10117 17-131418 18-…..I have calculate but I can’t get the right answers…..√16 =459x60/56x57=1.1 lowest59x60/13x13=20,94 highestnut=2000/1.1= 1818rpmnut=2000/20.94=95.5 rpmMut=1.1x30=33 NmMut=20.94x30=628,2 Nm(Right answer)LowestZ=13, M=24,4Nm, n=2462 rpmHighestZ=92, M=172,5Nm, n=347,8 rpmP=5655W on botharrow_forwardPlease see attached pic.arrow_forwardarrow_back_iosSEE MORE QUESTIONSarrow_forward_ios
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