The coefficient of friction on a surface is 0.25. A box requires 100N to slide it across the surface. What is the weight of the
1 answer:
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Explanation:
Given data
Velocity v=3 m/s
Water volume flow rate V=590 m³/s
Water elevation z=90 m
Water density p=1000 kg/m³
First we need to determine the energy per unit mass
So
Now the power generation potential is:
Answer:
It is required 1482 Megajoules of energy.
Explanation:
The energy Q required to raise the temperature T1 to a temperature T2 of mass m of water is:
(1)
with c the specific heat of water that is.
We don't have explicit the mass of water containded in the swimming pool, but we can use the relation:
with ρ the density of water that is , V the volume of the swimming pool and m the mass, so m is:
Using c and m on (1):