A waterfall is 1260m high. Calculate the change in temper...
A waterfall is 1260m high. Calculate the change in temperature of a quantity of water that falls from the top to the bottom of the waterfall. (Neglect heat losses to the surroundings, take g as 10m-2 and specific heat capacity of water as 4200Jkg-1K-1)
0.3oC
3.0oC
33.3oC
42.0oC
100.0oC
Correct answer is B
Δt=ghc=1260×104200
= 3.0°