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What is the restoring force of a spring with a spring constant of a 4a and a stretched displacement of 3b?
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Ammonia enters the expansion valve of a refrigeration system at a pressure of 10 bar and a temperature of 18oc and exits at 6.0 bar. the refrigerant undergoes a throttling process. determine the temperature, in oc, and the quality of the refrigerant at the exit of the expansion valve.
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If a balloon is taken outside on a very cold day, what will occur?
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What are two different ways you could find the value of a? explain these methods.
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What efficiency of a car's engine when heat input is 200,000 joules and waste heat is 150,000 joules? a. 75% b. 35% c. 25% d. 85%
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What is the restoring force of a spring with a spring constant of a 4a and a stretched displacement...
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