A+piece+of+copper+of+mass+120g+is+heated+in+an+enclosure+to+a+temperature+of+125°C.+It+is+then+taken+out+of+the+enclosure+and+held+in+air+for+half+a+minute+and+dropped+carefully+into+a+copper+calorimeter+of+mass+105+g+containing+200+g+of+water+at+20°C.+The+temperature+of+the+water+rises+to+25°C.+Calculate+the+rate+at+which+heat+is+being+lost+from+the+piece+of+copper+when+it+is+held+in+air+.
[Specific+heat+capacity+of+water+=+4200J+kg-¹+°C-¹]
[+Specific+heat+capacity+of+copper+=+400+J+kg-¹]
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documentable associatively xenophobic gelatinized
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