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Posted by **jake** on Sunday, November 11, 2012 at 12:53pm.

** I keep getting different answers ranging from 30-40 and nothing is correct! HelP!

- Physics -
**bobpursley**, Sunday, November 11, 2012 at 2:10pmpower*timeinseconds=specifheatair*densityair*volumeair(Tf-Ti)

Tf=Ti+power*time/(specheatair*density*volume)

Tf=18.8+54*60*122/(840*6.4*14.5*3.5*density)

now change denstity to kg/m^3

density=1.25E-3g/cm^3*(100cm/m)^3*1kg/1000g= 1.25E-3*E6*E-3=1.25kg/m^3

Tf= about one C higher. Check my calcs

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