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April 18, 2014

April 18, 2014

Posted by **Isis** on Wednesday, March 13, 2013 at 8:51am.

2) Phoebe's insulated foam cup is filled with 0.150 kg of the coffee (mostly water)that is too to hot to drink, so she adds 0.010 kg of milk at 5.0 degree celcius. If the coffee has an initial of temperature of 70.0 degree celcius and the specific heat of milk is 3800 J/kg degree celcius, how hot is the coffee after the milk is added? (Assume that no heat leaks out through the cup)

- Physics 11th grade 'Heat' -
**bobpursley**, Wednesday, March 13, 2013 at 10:06ama. heat=mc*deltaTemp use c for water

b. Sum of heats gained is zero.

heatgainedmilk+heatgainedcoffee=0

.01*cmilk*(Tf-5)+.150*cw*(Tf-70)=0

solve for Tf, given cmilk, and cwater.

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