Fundamentals of Engineering Thermodynamics, Binder Ready Version
8th Edition
ISBN: 9781118820445
Author: Michael J. Moran, Howard N. Shapiro, Daisie D. Boettner, Margaret B. Bailey
Publisher: WILEY
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Chapter 2.7, Problem 63P
(a)
To determine
The rate of heat transfer between the transistor and the air.
(b)
To determine
The temperature at the transistor's outer surface.
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Two large tanks, each holding 100 L of liquid, are interconnected by pipes, with the liquid flowing from tank
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6 L/min. The diluted solution flows out of the system from tank A at 4 L/min and from tank B at 2 L/min. If,
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A
6 L/min
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x(t)
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4 L/min
x(0) = 0 kg
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B
y(t)
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2 L/min
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Figure Q1 - Mixing problem for interconnected tanks
Determine the mass of salt in each tank at time t > 0:
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Two springs and two masses are attached in a straight vertical line as shown in Figure Q3. The system is set
in motion by holding the mass m₂ at its equilibrium position and pushing the mass m₁ downwards of its
equilibrium position a distance 2 m and then releasing both masses. if m₁ = m₂ = 1 kg, k₁ = 3 N/m and
k₂ = 2 N/m.
www.m
k₁ = 3
(y₁ = 0).
m₁ = 1
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(y₂ = 0)
|m₂ = 1
Y2
y 2
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static
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spring length
=32-31)
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Figure Q3 - Coupled mass-spring system
Determine the equations of motion y₁(t) and y₂(t) for the two masses m₁ and m₂ respectively:
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100
As a spring is heated, its spring constant decreases. Suppose the spring is heated and then cooled so that the
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Chapter 2 Solutions
Fundamentals of Engineering Thermodynamics, Binder Ready Version
Ch. 2.7 - Prob. 1ECh. 2.7 - 2. What are several things you as an individual...Ch. 2.7 - 3. How does the kilowatt-hour meter in your house...Ch. 2.7 - 4. Why is it incorrect to say that a system...Ch. 2.7 - Prob. 5ECh. 2.7 - Prob. 6ECh. 2.7 - 7. When microwaves are beamed onto a tumor during...Ch. 2.7 - 8. For good acceleration, what is more important...Ch. 2.7 - 9. Experimental molecular motors are reported to...Ch. 2.7 - 10. For polytropic expansion or compression, what...
Ch. 2.7 - Prob. 11ECh. 2.7 - Prob. 12ECh. 2.7 - 13. What form does the energy balance take for an...Ch. 2.7 - 14. What forms of energy and energy transfer are...Ch. 2.7 - Prob. 15ECh. 2.7 - 16. Steve has a pedometer that reads kilocalories...Ch. 2.7 - Prob. 17ECh. 2.7 - Prob. 1CUCh. 2.7 - Prob. 11CUCh. 2.7 - Prob. 12CUCh. 2.7 - Prob. 13CUCh. 2.7 - Prob. 14CUCh. 2.7 - 15. In mechanics, the work of a resultant force...Ch. 2.7 - 16. What direction is the net energy transfer by...Ch. 2.7 - 17. The differential of work, δW, is said to be an...Ch. 2.7 - Prob. 18CUCh. 2.7 - Prob. 19CUCh. 2.7 - Prob. 20CUCh. 2.7 - Prob. 21CUCh. 2.7 - Prob. 22CUCh. 2.7 - Prob. 23CUCh. 2.7 - Prob. 24CUCh. 2.7 - Prob. 25CUCh. 2.7 - 26. State the sign convention used in...Ch. 2.7 - Prob. 27CUCh. 2.7 - Prob. 28CUCh. 2.7 - Prob. 29CUCh. 2.7 - 30. Based on the mechanisms of heat transfer, list...Ch. 2.7 - Prob. 31CUCh. 2.7 - Prob. 32CUCh. 2.7 - 33. The total energy of a closed system can change...Ch. 2.7 - 34. The energy of an isolated system can only...Ch. 2.7 - 35. If a closed system undergoes a thermodynamic...Ch. 2.7 - Prob. 36CUCh. 2.7 - Prob. 37CUCh. 2.7 - Prob. 38CUCh. 2.7 - Prob. 39CUCh. 2.7 - Prob. 40CUCh. 2.7 - Prob. 41CUCh. 2.7 - 42. A process that is adiabatic cannot involve...Ch. 2.7 - Prob. 43CUCh. 2.7 - Prob. 44CUCh. 2.7 - Prob. 45CUCh. 2.7 - Prob. 46CUCh. 2.7 - 47. A rotating flywheel stores energy in the form...Ch. 2.7 - Prob. 48CUCh. 2.7 - Prob. 49CUCh. 2.7 - 50. If a closed system undergoes a process for...Ch. 2.7 - Prob. 51CUCh. 2.7 - Prob. 52CUCh. 2.7 - Prob. 53CUCh. 2.7 - Prob. 54CUCh. 2.7 - 2.1 A baseball has a mass of 0.3 lb. What is the...Ch. 2.7 - 2.2 Determine the gravitational potential energy,...Ch. 2.7 - 2.3 An object whose weight is 100 lbf experiences...Ch. 2.7 - 2.4 A construction crane weighing 12.000 lbf fell...Ch. 2.7 - 2.5 An automobile weighing 2500 lbf increases its...Ch. 2.7 - 2.6 An object of mass 1000 kg, initially having a...Ch. 2.7 - 2.7 A 30-seat turboprop airliner whose mass is...Ch. 2.7 - 2.8 An automobile having a mass of 900 kg...Ch. 2.7 - 2.9 Vehicle crumple zones are designed to absorb...Ch. 2.7 - 2.10 An object whose mass is 300 lb experiences...Ch. 2.7 - Prob. 11PCh. 2.7 - 2.12 Using KE = Iω2/2 from Problem 2.11a, how fast...Ch. 2.7 - 2.13 Two objects having different masses are...Ch. 2.7 - 2.14 An object whose mass is 100 lb falls freely...Ch. 2.7 - 2.15 During the packaging process, a can of soda...Ch. 2.7 - 2.16 Beginning from rest, an object of mass 200 kg...Ch. 2.7 - 2.17 Jack, who weighs 150 lbf, runs 5 miles in 43...Ch. 2.7 - 2.18 An object initially at an elevation of 5 m...Ch. 2.7 - 2.19 An object of mass 10 kg, initially at rest,...Ch. 2.7 - 2.20 An object initially at rest experiences a...Ch. 2.7 - 2.21 The drag force, Fd, imposed by the...Ch. 2.7 - 2.22 A major force opposing the motion of a...Ch. 2.7 - 2.23 The two major forces opposing the motion of a...Ch. 2.7 - 2.24 Measured data for pressure versus volume...Ch. 2.7 - 2.25 Measured data for pressure versus volume...Ch. 2.7 - 2.26 A gas in a piston-cylinder assembly undergoes...Ch. 2.7 - 2.27 Carbon dioxide (CO2) gas within a...Ch. 2.7 - 2.28 A gas in a piston-cylinder assembly undergoes...Ch. 2.7 - 2.29 Nitrogen (N2) gas within a piston-cylinder...Ch. 2.7 - 2.30 Oxygen (O2) gas within a piston-cylinder...Ch. 2.7 - 2.31 A closed system consisting of 14.5 lb of air...Ch. 2.7 - 2.32 Air contained within a piston-cylinder...Ch. 2.7 - 2.33 A gas contained within a piston-cylinder...Ch. 2.7 - 2.34 Carbon monoxide gas (CO) contained within a...Ch. 2.7 - 2.35 Air contained within a piston-cylinder...Ch. 2.7 - 2.36 The belt sander shown in Fig. P2.36 has a...Ch. 2.7 - 2.37 A 0.15-m-diameter pulley turns a belt...Ch. 2.7 - 2.38 A 10-V battery supplies a constant current of...Ch. 2.7 - 2.39 An electric heater draws a constant current...Ch. 2.7 - 2.40 A car magazine article states that the power...Ch. 2.7 - 2.41 The pistons of a V-6 automobile engine...Ch. 2.7 - 2.42 Figure P2.42 shows an object whose mass is 5...Ch. 2.7 - Prob. 43PCh. 2.7 - 2.44 A soap film is suspended on a wire frame, as...Ch. 2.7 - 2.45 As shown in Fig. P2.45, a spring having an...Ch. 2.7 - 2.46 A fan forces air over a computer circuit...Ch. 2.7 - 2.47 As shown in Fig. P2.47, the 6-in.-thick...Ch. 2.7 - 2.48 As shown in Fig. P2.48, an oven wall consists...Ch. 2.7 - 2.49 A composite plane wall consists of a...Ch. 2.7 - 2.50 A composite plane wall consists of a...Ch. 2.7 - 2.51 An insulated frame wall of a house has an...Ch. 2.7 - 2.52 Complete the following exercise using heat...Ch. 2.7 - Prob. 53PCh. 2.7 - Prob. 54PCh. 2.7 - 2.55 The outer surface of the grill hood shown in...Ch. 2.7 - 2.56 Each line of the following table gives data...Ch. 2.7 - 2.57 Each line of the following table gives data,...Ch. 2.7 - 2.58 A closed system of mass 10 kg undergoes a...Ch. 2.7 - Prob. 59PCh. 2.7 - 2.60 A gas contained in a piston−cylinder assembly...Ch. 2.7 - 2.61 A gas contained within a piston−cylinder...Ch. 2.7 - 2.62 An electric motor draws a current of 10 amp...Ch. 2.7 - 2.63 As shown in Fig. P2.63, the outer surface of...Ch. 2.7 - 2.64 One kg of Refrigerant 22, initially at p1 =...Ch. 2.7 - 2.65 A gas is contained in a vertical...Ch. 2.7 - 2.66 A gas undergoes a process in a...Ch. 2.7 - 2.67 Four kilograms of carbon monoxide (CO) is...Ch. 2.7 - 2.68 Helium gas is contained in a closed rigid...Ch. 2.7 - 2.69 Steam in a piston−cylinder assembly undergoes...Ch. 2.7 - 2.70 Air expands adiabatically in a...Ch. 2.7 - 2.71 A vertical piston−cylinder assembly with a...Ch. 2.7 - 2.72 Gaseous CO2 is contained in a vertical...Ch. 2.7 - 2.73 Figure P2.73 shows a gas contained in a...Ch. 2.7 - 2.74 The following table gives data, in kJ, for a...Ch. 2.7 - 2.75 The following table gives data, in Btu, for a...Ch. 2.7 - 2.76 Figure P2.76 shows a power cycle executed by...Ch. 2.7 - 2.77 A gas within a piston−cylinder assembly...Ch. 2.7 - 2.78 A gas within a piston-cylinder assembly...Ch. 2.7 - 2.79 A gas undergoes a cycle in a piston-cylinder...Ch. 2.7 - 2.80 As shown in Fig. P2.80, a gas within a...Ch. 2.7 - Prob. 81PCh. 2.7 - Prob. 82PCh. 2.7 - Prob. 83PCh. 2.7 - Prob. 84PCh. 2.7 - 2.85 A concentrating solar collector system, as...Ch. 2.7 - Prob. 86PCh. 2.7 - Prob. 87PCh. 2.7 - Prob. 88PCh. 2.7 - 2.89 A refrigeration cycle operating as shown in...Ch. 2.7 - Prob. 90PCh. 2.7 - Prob. 91PCh. 2.7 - Prob. 92PCh. 2.7 - Prob. 93PCh. 2.7 - Prob. 94PCh. 2.7 - 2.95 A heat pump maintains a dwelling at 688F....Ch. 2.7 - 2.96 A heat pump cycle delivers energy by heat...
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