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Lisa [10]
3 years ago
10

Electric power is to be generated by installing a hydraulic turbine–generator at a site 120 m below the free surface of a large

water reservoir that can supply water at a rate of 1500 kg/s steadily. Determine the power generation potential.
Physics
1 answer:
Gelneren [198K]3 years ago
8 0

Answer:

1764 kilowatt

Explanation:

h = 120 m, mass per second = 1500 kg/s

Power = m g h / t

Power = 1500 x 9.8 x 120 / 1

Power = 1764000 Watt

Power = 1764 kilowatt

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The electrons

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a hiker walks 200 m west and then walks 100 m north in what direction is her resulting displacement draw to show your answer​
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Answer:

The direction of the displacement is in North-West.

Explanation:

Resultant displacement D is

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Why evaporation are called surface phenomenon?
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A ‘thermal tap’ used in a certain apparatus consists of a silica rod which
abruzzese [7]

Correct question is;

A thermal tap used in a certain apparatus consists of a silica rod which fits tightly inside an aluminium tube whose internal diameter is 8mm at 0°C.When the temperature is raised ,the fits is no longer exact. Calculate what change in temperature is necessary to produce a channel whose cross-sectional is equal to that of the tube of 1mm. (linear expansivity of silica = 8 × 10^(-6) /K and linear expansivity of aluminium = 26 × 10^(-6) /K).

Answer:

ΔT = 268.67K

Explanation:

We are given;

d1 = 8mm

d2 = 1mm

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Thus;

V1 = (πd1²/4)h

V2 = (π(d2)²/4)h

Thus;

(πd1²/4)h/T1 = (π(d2)²/4)h/T2

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ΔT = 268.67K

Thus, the temperature decreased to 268.67K

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