College Physics
10th Edition
ISBN: 9781285737027
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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Question
Chapter 10, Problem 63AP
(a)
To determine
The change in angular speed of the disc.
(b)
To determine
The angular speed at the lower 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 symmetry axis with an angular speed of25.0 rad/s. As the disk radiates infrared light, its temperature falls to 20.0°C. No external torque acts on the disk. (a) Find the change in kinetic energy of the disk. (b) Find the change in internal energy of the disk. (c) Find theamount of energy it radiates.
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.
(a) Find the change in kinetic energy of the disk.
24.17747
(b) Find the change in internal energy of the disk.
(c) Find the amount of energy it radiates.
Chapter 10 Solutions
College Physics
Ch. 10.1 - Prob. 10.1QQCh. 10.3 - If you quickly plunge a room-temperature mercury...Ch. 10.3 - If you are asked to make a very sensitive glass...Ch. 10.3 - Two spheres are made of the same metal and have...Ch. 10.3 - Prob. 10.5QQCh. 10.5 - Prob. 10.6QQCh. 10 - Prob. 1WUECh. 10 - Prob. 2WUECh. 10 - Prob. 3WUECh. 10 - An electrician is wiring new electrical outlets in...
Ch. 10 - Prob. 5WUECh. 10 - A cylinder of volume 50.0 cm3 made of Pyrex glass...Ch. 10 - One way to cool a gas is to let it expand. When a...Ch. 10 - A container holds 0.500 m3 of oxygen at an...Ch. 10 - Suppose 26.0 g of neon gas are stored in a tank at...Ch. 10 - Prob. 10WUECh. 10 - (a) Why does an ordinary glass dish usually break...Ch. 10 - Some thermometers are made of a mercury column in...Ch. 10 - Prob. 4CQCh. 10 - Objects deep beneath the surface of the ocean are...Ch. 10 - Why do vapor bubbles in a pot of boiling water get...Ch. 10 - Markings to indicate length are placed on a steel...Ch. 10 - Metal lids on glass jars can often be loosened by...Ch. 10 - Suppose the volume of an ideal gas is doubled...Ch. 10 - An automobile radiator is filled to the brim with...Ch. 10 - When the metal ring and metal sphere in Figure...Ch. 10 - Prob. 1PCh. 10 - The pressure in a constant-volume gas thermometer...Ch. 10 - Prob. 3PCh. 10 - Death Valley holds the record for the highest...Ch. 10 - Show that the temperature 40 is unique in that it...Ch. 10 - Prob. 6PCh. 10 - Show that if the temperature on the Celsius scale...Ch. 10 - The temperature difference between the inside and...Ch. 10 - Prob. 9PCh. 10 - Prob. 10PCh. 10 - Prob. 11PCh. 10 - A grandfather clock is controlled by a swinging...Ch. 10 - A pair of eyeglass frames are made of epoxy...Ch. 10 - A spherical steel ball bearing has a diameter of...Ch. 10 - A brass ring of diameter 10.00 cm at 20.0C is...Ch. 10 - Prob. 16PCh. 10 - Lead has a density of 11.3 103 kg/m3 at 0C. (a)...Ch. 10 - The Golden Gate Bridge in San Francisco has a main...Ch. 10 - An underground gasoline tank can hold 1.00 103...Ch. 10 - Show that the coefficient of volume expansion, ,...Ch. 10 - A hollow aluminum cylinder 20.0 cm deep has an...Ch. 10 - A construction worker uses a steel tape to measure...Ch. 10 - The hand in Figure P10.23 is stainless steel...Ch. 10 - The Trans-Alaskan pipeline is 1 300 km long,...Ch. 10 - The average coefficient of volume expansion for...Ch. 10 - The density or gasoline is 7.30 102 kg/m3 at 0C....Ch. 10 - Figure P10.27 shows a circular steel casting with...Ch. 10 - The concrete sections of a certain superhighway...Ch. 10 - Prob. 29PCh. 10 - A 20.0-L tank of carbon dioxide gas (CO2) is at a...Ch. 10 - (a) An ideal gas occupies a volume of 1.0 cm3 at...Ch. 10 - An automobile tire is inflated with air originally...Ch. 10 - Prob. 33PCh. 10 - Gas is contained in an 8.00-L vessel at a...Ch. 10 - Prob. 35PCh. 10 - The density of helium gas at 0C is 0 = 0.179...Ch. 10 - An air bubble has a volume of 1.50 cm3 when it is...Ch. 10 - The ideal gas law can be recast in terms of the...Ch. 10 - What is the average kinetic energy of a molecule...Ch. 10 - A sealed cubical container 20.0 cm on a side...Ch. 10 - Prob. 41PCh. 10 - Prob. 42PCh. 10 - Prob. 43PCh. 10 - A 7.00-L vessel contains 3.50 moles of ideal gas...Ch. 10 - Prob. 45PCh. 10 - Prob. 46PCh. 10 - Inside the wall of a house, an L-shaped section of...Ch. 10 - The active element of a certain laser is made of a...Ch. 10 - A popular brand of cola contains 6.50 g of carbon...Ch. 10 - Prob. 50APCh. 10 - Prob. 51APCh. 10 - A 1.5-m-long glass tube that is closed at one end...Ch. 10 - Prob. 53APCh. 10 - A vertical cylinder of cross-sectional area A is...Ch. 10 - Prob. 55APCh. 10 - Prob. 56APCh. 10 - A liquid with a coefficient of volume expansion of...Ch. 10 - Before beginning a long trip on a hot day, a...Ch. 10 - Two concrete spans of a 250-m-long bridge are...Ch. 10 - An expandable cylinder has its top connected to a...Ch. 10 - A bimetallic strip of length L is made of two...Ch. 10 - A 250-m-long bridge is improperly designed so that...Ch. 10 - Prob. 63APCh. 10 - Two small containers, each with a volume of 1.00 ...
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