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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 minimum velocity of the Salmon jumping at the given angle is 12.3 m/s.

The given parameters;

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The time of motion to fall from 0.432 m is calculated as;

h = v_0_y + \frac{1}{2} gt^2\\\\0.432 = 0 + (0.5\times 9.8)t^2\\\\0.432 = 4.9t^2\\\\t^2 = \frac{0.432}{4.9} \\\\t^2 = 0.088\\\\t = \sqrt{0.088} \\\\t = 0.3 \ s

The minimum velocity of the Salmon jumping at the given angle is calculated as;

X = v_0_x t\\\\3.17 = (v_0\times cos(30.8)) \times 0.3\\\\10.567 = v_0\times cos(30.8)\\\\v_0 = \frac{10.567}{cos(30.8)} \\\\v_0 = 12.3 \ m/s

Thus, the minimum velocity of the Salmon jumping at the given angle is 12.3 m/s.

Learn more here: brainly.com/question/20064545

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2 years ago
What will be the ME of a machine that produces a 240 N work with a 300
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