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Tresset [83]
3 years ago
12

On his honeymoon, James Joule attempted to explore the relationships between various forms of energy by measuring the rise of te

mperature of water which had fallen down a waterfall on Mount Blanc.
What maximum temperature rise would one expect for a waterfall with a vertical drop of 20 m? The specific heat of water is 4186 J/kg ∙ain K. 32)

A) 0.071 C° B) 0.053C° C) 0.047 C° D) 0.064 C°
Physics
1 answer:
Marizza181 [45]3 years ago
8 0

Answer:

The maximum temperature rise = 0.047 °C

Explanation:

Potential Energy, P = mgh

Energy transfered, Q=mcΔT

Potential energy  = Energy transfered

mgh = mcΔT

gh = cΔT

ΔT = gh/c

ΔT = (9.81 * 20) / 4186

ΔT = 0.047 °C

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