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18. a] How much thermal energy is required to heat up a 254 g cup of water from 129C to 92C? In] If the power

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18. a] How much thermal energy is required to heat up a 254 g cup of water from 129C to 92C? In] If the power rating of a microwave is 1475 W, how long will it take to heat up the cup of water? c] If the cost of electricity is 15kah, what is the cost, in cents. to heat up the cup of water

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