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damaskus [11]
1 year ago
9

When wind turns the blades of a wind turbine and then this energy is used to power homes, this is an example of an energy transf

er from ________ to ________ energy. a mechanical, electrical b radiant, thermal c electrical, mechanical d thermal, chemical
Physics
1 answer:
My name is Ann [436]1 year ago
8 0

When wind turns the blades of a wind turbine and then this energy is used to power homes, this is an example of an energy transfer from mechanical to electrical energy.

<h3>What is Wind power?</h3>
  • In order to produce electricity, wind turbines are mostly used in wind power or wind energy.
  • In comparison to burning fossil fuels, wind energy is a well-liked, environmentally friendly, renewable energy source.
  • Wind energy, like all other forms of energy production, has the potential to have negative effects on the environment, including the loss, fragmentation, or degradation of habitat for animals, fish, and plants.
  • Additionally, flying animals like birds and bats could be harmed by turbine blades that are in motion.
  • Wind energy is economical.
  • After the production tax credit, land-based utility-scale wind is one of the least expensive energy sources on the market at 1-2 cents per kilowatt-hour.

Learn more about wind power here:

brainly.com/question/13266865

#SPJ4

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Answer: angular acceleration = 0.748rad/s²

Explanation: according to the question, our answer needs to be in rad/s², thus all units in rev/s will be converted to rad/s

Assuming the motion of the object is of a constant angular acceleration, then newton's laws of motion is applicable.

The formulae below is used

v² = u² + 2αθ

v = final angular speed =6rev/s = 6*2π = 12π rad/s

u =initial angular speed =3.5rev/s = 3.5 *2π = 7π rad/s

Note 1 rev = 2π rad.

α = angular acceleration.

θ = angular displacement.

Diameter = 64cm = 0.64m, radius = 64/2 = 32cm = 0.32m

The angular displacement can be gotten using the formulae below

S = rθ, where s= linear distance covered = 200m, r = radius = 0.32m

θ = S/r = 200/0.32=625 rad.

By substituting the parameter we have that

(12π)² = (7π)² + 2α(625)

1421.22 = 486.31 + 1250α

1421.22 - 486.31 = 1250α

934.91 = 1250α

α = 934.91/1250

α= 0.748 rad/s²

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