Water is falling from height of 84 m. If half of the energy of water is converted into heat, the increase in the temperature of
the water at the bottom is:
2 answers:
Answer:
so its 0.098*C
Explanation:
Let m gram be the mass of water.
Then potential energy of water is:
P.E.=mgh
=m×980×8400
Since potential energy is converted to kinetic energy
P.E.=K.E.
K.E.=m×980×8400
Half of kinetic energy is converted into heat.
Then heat energy:
Heat energy=
2
1
×m×980×8400
Convert joule into calories
heat=
4.2×10
7
m×980×4200
=m×0.098
But heat is:
Heat=msΔT
∴msΔT=m×0.098
m×1×ΔT=m×0.098
ΔT=0.098C
Rise in temperature of water is =0.098
∘
C .
Answer:
what are the options??? to choose the answer from?
Explanation:
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