Question

Heyyyyyy
Help me plzzzzz
.
.
.
.
The height of a waterfall is 84m . Assuming that the entire kinetic energy of falling water converted into heat , the rise in the temperature of the water will be...
(g= 9.8m/s^2, J =4.2 )
Thank you☺️☺️

Answer 1

potential energy = mgh

heat energy = m C (∆T)

mgh = m C (∆T)

gh = C (∆T)

9.8 × 84 = 4200(∆T)

823.2 /4200 = ∆T

0.196 = ∆T