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The movement of thermal energy from a warmer object is a cooler object is called A) heat B) temperature C) motion D) momentum
A)heat transfer
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User: The movement of thermal energy from a warmer object is a cooler object is called A) heat B) temperature C) motion D) momentum





Weegy: A)heat transfer
Expert answered|Dreamer78692|Points 10|

User: A steam engine is an example of A) external combustion engine B) internal combustion engine C) four-stroke engine D) eight-cylinder engine

Weegy: A) external combustion engine Steam engines are external combustion engines, where the working fluid is separate from the combustion products.
Expert answered|Dreamer78692|Points 10|

User: The conversion of thermal energy into mechanical energy requires a A) thermometer B) heat engine C)vaporizer D) thermostat

Weegy: B) heat engine . In general, heat is converted to mechanical energy and some heat rejection, via several processes involving temperature or phase change as well as pressure change of a working fluid.
Expert answered|Dreamer78692|Points 10|

User: pitston moves up, expelling gas from the cylinder A) compression stroke B) exhaust stroke C) intake stroke D) power stroke

Weegy: b) exhaust stroke. when the piston is going down and sucking in air/fuel then its the intake stroke when the piston goes up after the intake its compressing the gas so its the compretion stroke
Expert answered|Dreamer78692|Points 10|

User: Why is a safety valve important in a steam engine? A) It keeps the pistons from pumping too hard B) It allows the engineers to escape from the engine C) It releases steam if pressure builds too high in the boiler D) It protects the pistons from melting in the boiling water

Weegy: C) It releases steam if pressure builds too high in the boiler
Expert answered|Dreamer78692|Points 10|

User: Thank you





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Asked 1/9/2013 12:14:34 PM
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