Physics, 23.01.2020 00:31 germanie123
Acylinder of compressed gas has a pressure of 488.2 kpa. the next day the cylinder of gas has a
pressure of 468 kpa and its temperature is 8*c. what was the temperature the previous day?
Answers: 3
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Why is alternating current more effective at long–distance travel than direct current? a. the power lines are made out of conductors. b. transformers increase or decrease voltage as needed. c. the ac generator is more efficient. d. ac has lower voltage than dc.
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Apulley system is used to lift a 2,000 newton engine up a distance of 3 meters. the operator must apply a force of 250 newtons to the chain of the pulley system to lift the motor. to lift the engine 3 meters, the operator must pull a total of 30 meters of chain through the pulley system. what is the value of di?
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Matter is needed to transfer thermal energy bya. conductionb. convectionc. radiation d. both a & b.
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Decreased sensitivity to an unchanging stimulus is known as
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Acylinder of compressed gas has a pressure of 488.2 kpa. the next day the cylinder of gas has a
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