Physics for Scientists and Engineers, Technology Update (No access codes included)
9th Edition
ISBN: 9781305116399
Author: Raymond A. Serway, John W. Jewett
Publisher: Cengage Learning
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Chapter 19, Problem 19.70AP
(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.
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Following a collision in outer space, a copper disk at 850°C is rotating about its axis with an angular speed of 25.0 rad/s. As the disk radiates infrared light, its temperature falls to 20.0°C. No external torque acts on the disk. (a) Does the angular speed change as the disk cools? Explain how it changes or why it does not. (b) What is its angular speed at the lower temperature?
Following a collision between a large spacecraft and an asteroid, a copper disk of radius 28.0 m and thickness 1.20 m, at a temperature of 850°C, is floating in space, rotating about its axis with an angular speed of 23.5 rad/s. As the disk radiates infrared light, its temperature falls to 20.0°C. No external torque acts on the disk.
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Chapter 19 Solutions
Physics for Scientists and Engineers, Technology Update (No access codes included)
Ch. 19 - Prob. 19.1QQCh. 19 - Consider the following pairs of materials. Which...Ch. 19 - If you are asked to make a very sensitive glass...Ch. 19 - Two spheres are made of the same metal and have...Ch. 19 - A common material for cushioning objects in...Ch. 19 - On a winter day, you turn on your furnace and the...Ch. 19 - Markings to indicate length are placed on a steel...Ch. 19 - When a certain gas under a pressure of 5.00 106...Ch. 19 - If the volume of an ideal gas is doubled while its...Ch. 19 - The pendulum of a certain pendulum clock is made...
Ch. 19 - A temperature of 162F is equivalent to what...Ch. 19 - A cylinder with a piston holds 0.50 m3 of oxygen...Ch. 19 - What would happen if the glass of a thermometer...Ch. 19 - A cylinder with a piston contains a sample of a...Ch. 19 - Two cylinders A and B at the same temperature...Ch. 19 - A rubber balloon is filled with 1 L of air at 1...Ch. 19 - The average coefficient of linear expansion of...Ch. 19 - Suppose you empty a tray of ice cubes into a bowl...Ch. 19 - A hole is drilled in a metal plate. When the metal...Ch. 19 - On a very cold day in upstate New York, the...Ch. 19 - Common thermometers are made of a mercury column...Ch. 19 - A piece of copper is dropped into a beaker of...Ch. 19 - Prob. 19.3CQCh. 19 - Some picnickers stop at a convenience store to buy...Ch. 19 - Prob. 19.5CQCh. 19 - Prob. 19.6CQCh. 19 - An automobile radiator is filled to the brim with...Ch. 19 - When the metal ring and metal sphere in Figure...Ch. 19 - Prob. 19.9CQCh. 19 - Prob. 19.10CQCh. 19 - Prob. 19.1PCh. 19 - The temperature difference between the inside and...Ch. 19 - Prob. 19.3PCh. 19 - Prob. 19.4PCh. 19 - Liquid nitrogen has a boiling point of 195.81C at...Ch. 19 - Death Valley holds the record for the highest...Ch. 19 - Prob. 19.7PCh. 19 - The concrete sections of a certain superhighway...Ch. 19 - The active element of a certain laser is made of a...Ch. 19 - Prob. 19.10PCh. 19 - A copper telephone wire has essentially no sag...Ch. 19 - A pair of eyeglass frames is made of epoxy...Ch. 19 - The Trans-Alaska pipeline is 1 300 km long,...Ch. 19 - Prob. 19.14PCh. 19 - A square hole 8.00 cm along each side is cut in a...Ch. 19 - The average coefficient of volume expansion for...Ch. 19 - At 20.0C, an aluminum ring has an inner diameter...Ch. 19 - Why is the following situation impossible? A thin...Ch. 19 - A volumetric flask made of Pyrex is calibrated at...Ch. 19 - Review. On a day that the temperature is 20.0C, a...Ch. 19 - Prob. 19.21PCh. 19 - Review. The Golden Gate Bridge in San Francisco...Ch. 19 - Prob. 19.23PCh. 19 - A sample of a solid substance has a mass m and a...Ch. 19 - An underground gasoline lank can hold 1.00 103...Ch. 19 - A rigid lank contains 1.50 moles of an ideal gas....Ch. 19 - Prob. 19.27PCh. 19 - Your father and your younger brother are...Ch. 19 - Gas is contained in an 8.00-L vessel al a...Ch. 19 - A container in the shape of a cube 10.0 cm on each...Ch. 19 - An auditorium has dimensions 10.0 m 20.0 m 30.0...Ch. 19 - The pressure gauge on a lank registers the gauge...Ch. 19 - Prob. 19.33PCh. 19 - Prob. 19.34PCh. 19 - A popular brand of cola contains 6.50 g of carbon...Ch. 19 - In state-of-the-art vacuum systems, pressures as...Ch. 19 - An automobile tire is inflated with air originally...Ch. 19 - Review. To measure how far below the ocean surface...Ch. 19 - Review. The mass of a hot-air balloon and its...Ch. 19 - A room of volume V contains air having equivalent...Ch. 19 - Review. At 25.0 in below the surface of the sea,...Ch. 19 - Prob. 19.42PCh. 19 - A cook puts 9.00 g of water in a 2.00-L pressure...Ch. 19 - The pressure gauge on a cylinder of gas registers...Ch. 19 - Prob. 19.45APCh. 19 - A steel beam being used in the construction of a...Ch. 19 - A spherical steel ball bearing has a diameter of...Ch. 19 - A bicycle tire is inflated to a gauge pressure of...Ch. 19 - In a chemical processing plant, a reaction chamber...Ch. 19 - Why is the following situation impossible? An...Ch. 19 - A mercury thermometer is constructed as shown in...Ch. 19 - A liquid with a coefficient of volume expansion ...Ch. 19 - Prob. 19.53APCh. 19 - Two metal bars are made of invar and a third bar...Ch. 19 - A student measures the length of a brass rod with...Ch. 19 - The density of gasoline is 730 kg/m3 at 0C. Its...Ch. 19 - A liquid has a density . (a) Show that the...Ch. 19 - Prob. 19.58APCh. 19 - Review. A dock with a brass pendulum has a period...Ch. 19 - A bimetallic strip of length L is made of two...Ch. 19 - The rectangular plate shown in Figure P18.37 has...Ch. 19 - The measurement of the average coefficient of...Ch. 19 - Prob. 19.63APCh. 19 - A vertical cylinder of cross-sectional area A is...Ch. 19 - Review. Consider an object with any one of the...Ch. 19 - (a) Show that the density of an ideal gas...Ch. 19 - You are watching a new bridge being built near...Ch. 19 - You are watching a new bridge being built near...Ch. 19 - Review. (a) Derive an expression for the buoyant...Ch. 19 - Prob. 19.70APCh. 19 - Starting with Equation 18.11, show that the total...Ch. 19 - Review. A steel wire and a copper wire, each of...Ch. 19 - Review. A steel guitar string with a diameter of...Ch. 19 - A cylinder is closed by a piston connected to a...Ch. 19 - Prob. 19.75CPCh. 19 - A cylinder that has a 40.0-cm radius and is 50.0...Ch. 19 - Prob. 19.77CPCh. 19 - Review. A house roof is a perfectly flat plane...Ch. 19 - A 1.00-km steel railroad rail is fastened securely...
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