GEOG 2P07 Final: Final Lecture - Misuse of Maps and Course Summary

(a) Two 70 g ice cubes are dropped into 238 g of water in athermally insulated container. If the water is initially at 25°C,and the ice comes directly from a freezer at -15°C, what is thefinal temperature at thermal equilibtrium? (Neglect the heatcapacity of the glass.)
°C



(b) What is the final temperature if only one ice cube isused?

I got that a was zero.

So I used(.07)(2220)(15)+(.07)(4186)+(.07)(4180)(T-0)+(.238)(4186)(T-25)=0

But that is wrong! Please help!

View the "Integrating Along a Line of Charge" and"Integrating
Around a Ring of Charge" shockwave videos and describe whateachof
the red/orange arrows stand for in each of the two videos.
http://ocw.mit.edu/ans7870/8/8.02T/f04/visualizations/electrostatics/07-LineIntegration/07-LineInt320.html
http://ocw.mit.edu/ans7870/8/8.02T/f04/visualizations/electrostatics/09-RingIntegration/09-ringInt320.html

What is the acceleration of the 2.0 kg block in the figure (Part Afigure) across the frictionless table?
figure:

http://session.masteringphysics.com/problemAsset/1070414/3/07.CP52.jpg