Posted by **help!** on Monday, January 30, 2012 at 6:07pm.

A 2.8 kg gold bar at 99 degrees celcius

is dropped into 0.21 kg of water at 23 degrees celcius

What is the ﬁnal temperature? Assume the

speciﬁc heat of gold is 129 J/kg times degrees celcius. Answer in units of degrees celcius

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