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valentinak56 [21]
2 years ago
14

Aerogenerators are used to produce electricity from

Physics
1 answer:
ki77a [65]2 years ago
4 0
Like windmills they use the winds to generate their power.
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An astronomer studies an image taken by a satellite in space and sees an area of gas, dust, and many stars distributed along spi
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Answer:the answer is galaxy

Explanation:

7 0
3 years ago
In a nuclear reactor, the control rods are: A.made of graphite B.used to keep the reactor cool C.used to absorb free neutrons D.
algol13
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3 years ago
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A grandfather clock has a pendulum that consists of a thin brass disk of radius r = 13.62 cm and mass 1.199 kg that is attached
Feliz [49]

Answer:

Explanation:

Expression for time period of a pendulum is as follows

T = 2\pi\sqrt{\frac{l}{g} }

l is length of pendulum from centre of bob and g is acceleration due to gravity

Given

Time period T = 1.583

g = 9.846

Substituting the values

1.583 = 2\pi\sqrt{\frac{l}{9.846} }

l = \frac{(1.583)^2\times9.846}{4\times(\frac{22}{7})^2 }

l = .6244 m

= 62.44 cm

Length of rod  = length of pendulum - radius of bob

= 62.44 - 13.62

= 48.82 cm

= .488 m

8 0
2 years ago
A projectile is fired with a velocity of 45 m/s at an angle of 32°. What is the
Dennis_Churaev [7]

Answer:

C

Explanation:

To calculate adjacent of triangle use

\cos(32)  =  \frac{a}{45}

where 45 is the hypotenuse, and a is the adjacent side (horizontal component)

45 \cos(32)  = 38.16

then round to 38.2

8 0
3 years ago
You play basketball in your driveway during the summer. By accident, you leave the basketball outside during the winter. You try
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Slower and the pressure is heavier in the winter
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