Physics of Everyday Phenomena
Physics of Everyday Phenomena
9th Edition
ISBN: 9781260048469
Author: Griffith
Publisher: MCG
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Chapter 11, Problem 9CQ
To determine

The possibility of operation of an engine without participation of cold reservoir.

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6. A car drives at steady speed around a perfectly circular track. (a) The car's acceleration is zero. (b) The net force on the car is zero. (c) Both the acceleration and net force on the car point outward. (d) Both the acceleration and net force on the car point inward. (e) If there is no friction, the acceleration is outward.
9. A spring has a force constant of 100 N/m and an unstretched length of 0.07 m. One end is attached to a post that is free to rotate in the center of a smooth. table, as shown in the top view in the figure below. The other end is attached to a 1kg disc moving in uniform circular motion on the table, which stretches the spring by 0.03 m. Friction is negligible. What is the centripetal force on the disc? Top View (a) 0.3 N (b) 3.0 N (c) 10 N (d) 300 N (e) 1000 N
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Chapter 11 Solutions

Physics of Everyday Phenomena

Ch. 11 - Prob. 11CQCh. 11 - Is it possible for the efficiency of a heat engine...Ch. 11 - Can a Carnot engine operate in an irreversible...Ch. 11 - Does a gasoline-burning automobile engine operate...Ch. 11 - Which would have the greater efficiencya Carnot...Ch. 11 - If we want to increase the efficiency of a Carnot...Ch. 11 - Is a heat pump the same thing as a heat engine?...Ch. 11 - Is a heat pump essentially the same thing as a...Ch. 11 - When a heat pump is used to heat a building, where...Ch. 11 - Is it possible to cool a closed room by leaving...Ch. 11 - Prob. 21CQCh. 11 - Prob. 22CQCh. 11 - Prob. 23CQCh. 11 - Prob. 24CQCh. 11 - Which has the higher entropy, a deck of cards in...Ch. 11 - A hot cup of coffee is allowed to cool down, thus...Ch. 11 - When a substance freezes, the molecules become...Ch. 11 - Which would normally have the greater thermal...Ch. 11 - In what ways is a nuclear power plant similar to a...Ch. 11 - What is the distinction between high-grade heat...Ch. 11 - Prob. 31CQCh. 11 - Prob. 32CQCh. 11 - Is an automobile engine a perpetual-motion...Ch. 11 - Prob. 34CQCh. 11 - Prob. 35CQCh. 11 - The water draining from the bottom of the pond...Ch. 11 - Prob. 37CQCh. 11 - In one cycle, a heat engine takes in 1200 J of...Ch. 11 - A heat engine with an efficiency of 28% does 700 J...Ch. 11 - In one cycle, a heat engine takes in 800 J of heat...Ch. 11 - A heat engine with an efficiency of 35% takes in...Ch. 11 - In one cycle, a heat engine does 700 J of work and...Ch. 11 - A Carnot engine takes in heat at a temperature of...Ch. 11 - A Carnot engine takes in heat from a reservoir at...Ch. 11 - A Carnot engine operates between temperatures of...Ch. 11 - A heat pump takes in 450 J of heat from a...Ch. 11 - In each cycle of its operation, a refrigerator...Ch. 11 - A typical electric refrigerator (see fig. 11.9)...Ch. 11 - A typical nuclear power plant delivers heat from...Ch. 11 - An ocean thermal-energy power plant takes in warm...Ch. 11 - An engineer designs a heat engine using flat-plate...Ch. 11 - Suppose that a typical automobile engine operates...Ch. 11 - Prob. 2SPCh. 11 - A Carnot engine operating in reverse as a heat...Ch. 11 - In section 11.3, we showed that a violation of the...Ch. 11 - Suppose that an oil-fired power plant is designed...
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