Physics, 19.07.2019 22:30 airelle146
Which of the following statements is true? -stirring, compression, and friction are ways to increase heat. -the intensity of light depends on the number of photons. -the sun's energy comes from the nuclear reactions of changing hydrogen into helium. -all of the above.
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Astone dropped into a well is heard to strike the water after 8seconds. find the depth of the well if the velocity of sound is 350m/s
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In what direction does the medium move relative to the direction of the wave? explain.
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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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What is a subatomic particle with a negative charge and very little mass?
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Which of the following statements is true? -stirring, compression, and friction are ways to increa...
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