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pantera1 [17]
3 years ago
9

The density of air under normal conditions is about 3 1.2 kg/ m . For a wind speed of 10 m/s, find (a) the actual power carried

in the wind; (b) the maximum power (Betz limit) extractable by a wind turbine with a blade area of 10 m2; and (c) the actual power extracted by a wind turbine with a blade area of 10 m2 and a power coefficient of 0.46.
Physics
1 answer:
dusya [7]3 years ago
3 0
The density’ is 5.46
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Answer:

195.168 m

Explanation:

To find the magnitude of the vector you can use the Pythagorean Theorem since you have the height and base and the vector is really just the hypotenuse

Pythagorean Theorem:

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Plug values in

88.4^2+174^2=c^2

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195.168\approx195.168

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2 years ago
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Aleks [24]

Answer:

Tilt of the Earth

Explanation:

The Earth's rotational axis is titled at an angle 23.4°. When then northern hemisphere is pointed towards the Sun it is summer in the northern hemisphere and winter in the southern hemisphere.

In the northern hemisphere a day would be longer and gets more sunlight than the southern hemisphere.

The same happens when it is summer in the southern hemisphere.

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3 years ago
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How much force is needed to accelerate at 66 kg skier 4m/s^2 ?​
Ray Of Light [21]
E force needed to accelerate a 68 kilogram-skier at a rate of
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shtirl [24]

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16.63265306 Kg

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