Physics for Scientists and Engineers with Modern Physics
10th Edition
ISBN: 9781337553292
Author: Raymond A. Serway, John W. Jewett
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Question
Chapter 18, Problem 42AP
(a)
To determine
To explain: The angular speed of the copper disk is change or not as the disk cools down.
(b)
To determine
The angular speed of the copper disk at lowest temperature.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
A. 1 kg of ice at 0°C is mixed with 3 kg of steam at 100°C in a thermally isolated container and allowed to reach thermal equilibrium. What is the final temperature of the resulting mixture? The latent heat of fusion is 80 cal/g and the latent heat of vaporization is 540 cal/g. The specific heat of water is 1.00 cal/g · K. The specific heat of both ice and steam is 0.5 cal/g · K°
B. A skater spins with constant angular acceleration from rest to a final angular speed of 10.0 rev/s in 6.00 seconds. How many revolutions did she make in the first 6.00 seconds?
C. A particle exhibiting simple harmonic motion has a velocity v(t) = 200 sin(50t) where v is in m/s. Its maximum velocity in m/s is _______.
D. A container has 0.50 kg of ice at 0.00°C. A tube connected from a boiler et 0.100 kg of steam at 100.0°C inside the container. What is the temperature of the system when it has reached equilibrium? Assume that no heat is absorbed by the container.
Consider an object with any one of the shapes displayed in Table 8.1. What is the percentage increase in the moment of inertia of the object when it is warmed from 0°C to 100°C if it is composed of (a) copper or (b) aluminum? Assume the average linear expansion coefficients shown in Table 10.1 do not vary between 0°C and 100°C. (c) Why are the answers for parts (a) and (b) the same for all the shapes?
How much heat is removed from the body when 300-g ice from an ice pack melted and the water inside had a temperature of 25°C?
a. 3135 J
b. 31 350 J
c. 100 080 J
d. 131 430 J
In what conditions will vaporization best occur?
a. low kinetic energy, strong molecular forces, and large surface area
b. high kinetic energy, weak molecular forces, and large surface area
c. low kinetic energy, low molar mass, and small surface area
d. high kinetic energy, high molar mass, and large surface area
Assuming all substances are at room temperature, choose the liquid having a vapor pressure between higher
a. mercury and water
b. condensed milk and evaporated milk
c. acetone and honey
d. motor oil and gasolinens
Chapter 18 Solutions
Physics for Scientists and Engineers with Modern Physics
Ch. 18.1 - Prob. 18.1QQCh. 18.3 - Consider the following pairs of materials. Which...Ch. 18.4 - If you are asked to make a very sensitive glass...Ch. 18.4 - Prob. 18.4QQCh. 18.5 - A common material for cushioning objects in...Ch. 18.5 - On a winter day, you turn on your furnace and the...Ch. 18 - Prob. 1PCh. 18 - Prob. 2PCh. 18 - Prob. 3PCh. 18 - Liquid nitrogen has a boiling point of 195.81C at...
Ch. 18 - Prob. 5PCh. 18 - Prob. 6PCh. 18 - A copper telephone wire has essentially no sag...Ch. 18 - Prob. 8PCh. 18 - The Trans-Alaska pipeline is 1 300 km long,...Ch. 18 - Prob. 10PCh. 18 - Prob. 11PCh. 18 - Prob. 12PCh. 18 - Prob. 13PCh. 18 - Why is the following situation impossible? A thin...Ch. 18 - A volumetric flask made of Pyrex is calibrated at...Ch. 18 - Review. On a day that the temperature is 20.0C, a...Ch. 18 - Prob. 17PCh. 18 - Prob. 18PCh. 18 - An auditorium has dimensions 10.0 m 20.0 m 30.0...Ch. 18 - Prob. 20PCh. 18 - Prob. 21PCh. 18 - Prob. 22PCh. 18 - In state-of-the-art vacuum systems, pressures as...Ch. 18 - Prob. 24PCh. 18 - Prob. 25PCh. 18 - Prob. 26PCh. 18 - Prob. 27PCh. 18 - Prob. 28PCh. 18 - The pressure gauge on a cylinder of gas registers...Ch. 18 - Prob. 30APCh. 18 - Prob. 31APCh. 18 - Why is the following situation impossible? An...Ch. 18 - A student measures the length of a brass rod with...Ch. 18 - Prob. 34APCh. 18 - A liquid has a density . (a) Show that the...Ch. 18 - Prob. 36APCh. 18 - Prob. 37APCh. 18 - A bimetallic strip of length L is made of two...Ch. 18 - Prob. 39APCh. 18 - A vertical cylinder of cross-sectional area A is...Ch. 18 - Prob. 41APCh. 18 - Prob. 42APCh. 18 - Prob. 43APCh. 18 - Prob. 44CPCh. 18 - A 1.00-km steel railroad rail is fastened securely...Ch. 18 - Prob. 46CP
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- The average coefficient of linear expansion of copper is 17 106 (C)1. The Statue of Liberty is 93 in tall on a summer morning when the temperature is 25C. Assume the copper plates covering the statue are mounted edge to edge without expansion joints and do not buckle or bind on the framework supporting them as the day grows hot. What is the order of magnitude of the statues increase in height? (a) 0.1 mm (b) 1 mm (c) 1 cm (d) 10 cm (e) 1 marrow_forwardThe exhaust duct from a heater has an inside diameter of 114.3 mm with ceramic walls 6.4 mm thick. The average k = 1.52 W/mK. Outside this wall, an insulation of rock wool 102 mm thick is installed. The thermal conductivity of the rock wool is k = 0.046+1.56*10-4T (°C) (W/mK). The inside surface temperature of the ceramic is T1= 588.7 K, and the outside surface temperature of the insulation is T3= 311 K. Calculate the heat loss for 1.5 m of duct and the interface temperature T2between the ceramic and the insulation.Assumesteady heat transfer.Hint: The correct value of km for insulation is that evaluated at the mean temperature of T2+T3/2. Hence, for the first trial assume a mean temperature of, say, 448 K. Then, calculate the heat loss and T2. Using this new T2, calculate a new mean temperature and proceed as before.arrow_forwardOn a multi-layered square wall, the thermal resistance of the first layer is 0.005 ° C / W, the resistance of the second layer is 0.2 ° C / W, and the third layer is 0.1 ° C / W. The overall temperature gradient in the wall is multilayered from one side. to the other side is 60 ° C. a. Determine the heat flux through the walls. = Answer watts / m2. b. If the thermal resistance of the second layer is changed to 0.3 ° C / W, what is the effect in% on heat flux, assuming the temperature gradient remains the same? = Answer Answer %.arrow_forward
- The band in Figure P10.23 is stainless steel (coefficient of linear expansion 5 17.3 × 10–6 °C–1; Young’s modulus 5 18 × 1010 N/m2). It is essentially circular with an initial mean radius of 5.0 mm, a height of 4.0 mm, and a thickness of 0.50 mm. If the band just fits snugly over the tooth when heated to a temperature of 80°C, what is the tension in the band when it cools to a temperature of 37°C?arrow_forwardA bimetallic strip of length L is made of two ribbons of different metals bonded together. (a) First assume the strip is originally straight. As the strip is warmed, the metal with the greater average coefficient of expansion expands more than the other, forcing the strip into an arc, with the outer radius having a greater circumference (Fig. P10.61). Derive an expression for the angle of bending, u, as a function of the initial length of the strips, their average coefficients of linear expansion, the change in temperature, and the separation of the centers of the strips (Δr = r2 −r1). (b) Show that the angle of bending goes to zero when Δ T goes to zero and also when the two average coefficients of expansion become equal. (c) What happens if the strip is cooled?arrow_forwardYou mix mI = 1.2 kg of ice at TI = -21°C with mW = 4.8 kg of water at TW = 72°C in an insulated container. The specific heats of ice and water are cI = 2.10×103 J/(kg⋅°C) and cW = 4.19×103 J/(kg⋅°C), respectively, and the latent heat of fusion for water is Lf = 3.34 × 105 J/kg. Enter an expression for the final equilibrium temperature of the mixture in terms of the defined quantities.arrow_forward
- A 1.0-m-long steel beam, initially at a temperature of 250 C, increases in temperature to 1000 C by inserting it into an insulating jacket for several minutes while the inside of the jacket is subsequently flooded with steam. By how much does the length of the steel beam expand? (The thermal coefficient of linear expansion for steel is 12 x 10-6 (C0)-1) a. 0.90 mm b. 1.0 mm c. 0.70 mm d. 0.80 mm e. 0.60 mmarrow_forwardTwo identical concrete slabs lie flat and in contact with each other as shown in the figure. If the temperature increases by 100 °F, the lower edges opposite the contact edges remained fixed in position, and the lower edges of the contact side remain in contact, what distance x the slabs rise? The coefficient of thermal expansion of the concrete is 40 × 10-6/K. The initial slab length is 5 m.arrow_forwardThe tube in a heat exchanger has a 2-in inner diameter and a 3-in outer diameter. The thermal conductivity of the tube material is 0.5 Btu/h·ft·°F, while the inner surface heat transfer coefficient is 50 Btu/h·ft2·°F and the outer surface heat transfer coefficient is 10 Btu/h·ft2·°F. Determine the overall heat transfer coefficients based on the outer and inner surfaces.arrow_forward
- A shell-and-tube heat exchanger with 2-shell passes and 12-tube passes is used to heat water (cp = 4180 J/kg·K) with ethylene glycol (cp = 2680 J/kg·K). Water enters the tubes at 22°C at a rate of 0.8 kg/s and leaves at 70°C. Ethylene glycol enters the shell at 110°C and leaves at 60°C. If the overall heat transfer coefficient based on the tube side is 280 W/m2·K, determine the rate of heat transfer and the heat transfer surface area on the tube side.arrow_forwardYou are pumping liquid nitrogen at a temperature of -196°C through a long, thin-walled pipe; ignore the resistance of the pipe material and assume that the outside temperature of the pipe is the same as the liquid nitrogen. The pipe has an outside diameter of 12.0 cm; and is buried in the ground (k = 0.52 W/(m-k), ground surface temperature = 18.0°C) at a depth of 3.2 meters (distance from the surface of the ground to the centerline of the pipe). To reduce the heat loss from the pipe, it is insulated with a 5.0 cm layer of cryogenic insulation, k = 0.0017 W/(m-k). Draw a sketch of this problem; draw the resistor diagram, and assuming steady-state conditions calculate the heat gain per meter length of the pipe.arrow_forwardIn an experiment to determine thermal conductivity of a new metal alloy, a bar of the metal is completely surrounded by insulation and exposed to 750 W of constant heat energy at one end. The bar has a radius 0.063 m. The length is 0.454 m. The entire set-up is in a cold room and once the system has reached steady state conditions, the temperature at the hot end is measured to be 70°C and the temperature at the cold end is measured to be 20°C. What is the thermal conductivity in W/m•K of the metal alloy.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningPhysics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage LearningPhysics for Scientists and Engineers, Technology ...PhysicsISBN:9781305116399Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
Physics for Scientists and Engineers, Technology ...
Physics
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Thermal Expansion and Contraction of Solids, Liquids and Gases; Author: Knowledge Platform;https://www.youtube.com/watch?v=9UtfegG4DU8;License: Standard YouTube License, CC-BY