- #1

- 13

- 0

## Homework Statement

"You want to heat 1 L of water by 10 ºC so you heat it with a mechanical egg beater that is powered by a 1kg mass on a rope over a pulley. How far does the mass have to descend to supply enough work for heating the water?

## Homework Equations

delta T = 10degC

delta C = delta Q / delta T

Work in gravity is: integ x_f / x_i (mg)dx

## The Attempt at a Solution

I dont understand how to get the work. If i knew delta U then I could use U = q+w. So i am stuck as to where to start. Please help me get started..thanks