Friday

September 19, 2014

September 19, 2014

Posted by **Jim** on Friday, January 14, 2011 at 11:05am.

- physics -
**bobpursley**, Friday, January 14, 2011 at 11:55amThe sum of the heats gained is zero (something loses heat).

Heatgainedwater+heatgainedgold=0

.22*Cw*(Tf-25)+3*Cg*(Tf-99)=0

solve for Tf

- physics -
**Shaba**, Friday, January 14, 2011 at 1:47pmA*t =v-u at=v-u add u to both side at*u=v-at

**Answer this Question**

**Related Questions**

physics;changes in temp - A 4.0 kg gold bar at 97C is dropped into 0.27 kg of ...

chemistry - A sample of gold is at a initial temperature of 350 k. Once dropped ...

chemistry - A sample of gold is at a initial temperature of 350 k. Once dropped ...

physics - A 2.6kggold bar at 90C is dropped into a 0.21kg of water at 23C. What ...

chemistry - A 4.90 g nugget of pure gold absorbed 255 J of heat. What was the ...

physics - A 2.8 kg gold bar at 99 degrees celcius is dropped into 0.21 kg of ...

Chemistry - A 325.0-g piece of gold at 427°C is dropped into 200.0 g of water ...

Chemistry - A 15g sample of what appears to be gold that was heated from 22 ...

Chem - Calculate the amount of heat required to heat a 3.8 gold bar from 30 to ...

physics - what is the final temperature when a 3.0 kg gold bar at 99 degrees is ...