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A recycling plant manager needs to melt 1500 kg of scrap copper to sell to a wire manufacturer. The copper is at 15°C and its melting point is 1083°C. The copper has a specific heat of 385 J/kg x K. How much heat is required to raise the temperature of the copper to its melting point?

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Which of these will always produce a magnetic field?

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Which sense is used to tell if there is sugar in a glass of tea?

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All of the following events occur during prophase in mitosis except