Homework Help: physics

Posted by Meghan on Saturday, March 19, 2011 at 4:53pm.

A hot stell ball of mass 1 kg is dropped into a 4 L bucket of water at room temperature (70 degrees F). If the system reaches an equilibrium temperature of 320 K, what was the initial temperature of the steel ball before it was dropped into the water? Cp of steel = 490 J/kg degrees C, Cp of water = 4186 J/kg degrees C.

physics - bobpursley, Saturday, March 19, 2011 at 5:06pm
the sum of heats gained is zero.

HeatgainedSteelBall+ HeatgainedWater=0
1kg*490*(Tf-Ti)+4000*4186*(Tf-70)=0
solve for Ti
physics - Meghan, Saturday, March 19, 2011 at 5:19pm
thank you!

Answer this Question

Related Questions

Physical science - A hot iron ball is dropped into 200g of cooler water. The ...
Physics - 1). A hot iron horseshoe (mass=.40kg), just forged, is dropped into 1....
Physics - A 3 Kg lead ball is dropped into a 3 L insulated pail of water ...
Physical Science - If a hot iron ball is dropped into 200.0 gram of cooler ...
physics - A hot iron horseshoe (mass = 0.43 kg), just forged (Fig. 14-16), is ...
Physics - A copper calorimeter can with mass .100 kg contains .160 kg of water ...
physics - A copper calorimeter can with mass .100 kg contains .160 kg of water ...
Help me!, Physics - A 60g piece of ice at an intial temperature that is unknown...
physics - A copper calorimeter can with mass 0.202 kg contains 0.185 kg of water...
Physics-PLEASE ANSWER, it's due soon! - A copper calorimeter can with mass 0...

For Further Reading

First Name:
School Subject:
Answer: