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Murljashka [212]
3 years ago
11

The ______ energy in water pooled behind a dam is converted to _______ energy as gravity causes the water to surge through tunne

ls in the dam. The energy in the moving water is then converted to hydroelectric power as the water spins turbines inside the dam.
Physics
1 answer:
Rudik [331]3 years ago
3 0


 Still water behind the dam has potential energy which is converted to kinetic energy by gravity.
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The ceiling of a large symphony hall is covered with acoustic tiles which have small holes that are 4.35 mm center to center. If
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The distance between their eye and the ceiling is 33.06 m.

Explanation:

Given that,

The ceiling of a large symphony hall is covered with acoustic tiles which have small holes that are 4.35 mm center to center, D = 4.35 mm

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We need to find the distance between their eye and the ceiling. Using Rayleigh criteria, we get the distance as follows :

L=\dfrac{Dd}{1.22\lambda}\\\\L=\dfrac{4.35\times 10^{-3}\times 5.1\times 10^{-3}}{1.22\times 550\times 10^{-9}}\\\\L=33.06\ m

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3 years ago
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