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If a radioactive material has a 10 year half-life, how much of a 100 g sample will be left after 30 years?
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What is the measurement of how fast an object moves relative to a reference point?
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6–48 bananas are to be cooled from 24 to 138c at a rate of 215 kg/h by a refrigeration system. the power input to the refrigerator is 1.4 kw. determine the rate of cooling, in kj/ min, and the cop of the refrigerator. the specific heat of banana above freezing is 3.35 kj/kg·8c.
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Two balls, each with a mass of 0.5 kg, collide on a pool table. is the law of conservation of momentum satisfied in the collision? explain why or why not
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If a radioactive material has a 10 year half-life, how much of a 100 g sample will be left after 30...
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