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A 0.0500 kg lead bullet of volume 5.00 xx 10^(-6) m ^(3) at 20.0^(@)C hits a block that is made of an ideal thermal insulator and comes to rest at its center. At that time, the temperature of the bullet is 327^(@)C. Use the following information for lead : Coefficientof linear expansion : alpha = 2.0 xx 10^(-5)// ""^(@)C Specific heat capacity :c = 128 J // ( kg . ""^(@)C ) Latent heat of fusion :L_(1) = 23 300 J // kg Melting point :T_("melt") = 327^(@)C What additional heat would be needed to melt the bullet ? |
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Answer» 420J |
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