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September 21, 2014

September 21, 2014

Posted by **Christina** on Sunday, December 2, 2007 at 11:10pm.

What is the maximum rise in temperature of the water if the bird gives it all of its mechanical energy?

(delta)T= ?? degrees C

- physics help please :) -
**drwls**, Sunday, December 2, 2007 at 11:49pmFirst compute the mechanical energy that is converted to heat, Q.

Q = (1/2) M g H

H = 35 m

g = 9.8 m/s^2

M = 1.25 kg. Q will be in Joules if you use these units. Divide the number of Joules by 4.18 to get calories

To get the delta T, use

Q = M(water) * C * (delta T)

C = 1.00*10^3 calories/kg C

- physics help please :) -
**Christina**, Monday, December 3, 2007 at 11:25amI'm not getting the correct answer.. this is my work:

Q=214.374/4.18 =51.286

51.286=(50)(10^3)T

T=.001

Do I need to convert the T to something else? It says to have it in C, which I think it's already in...

- physics help please :) -

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