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Law Incorporation [45]
3 years ago
12

One of the challenges of wind power is _____. the location of wind farms the ongoing cost of wind power that it adds carbon to t

he atmosphere as global warming increases, the wind will diminish
Physics
2 answers:
Mila [183]3 years ago
5 0
I think the correct answer from the choices listed above is the first option. One of the challenges of wind power is the <span>location of wind farms. Wind farms require large areas in order to function.  It consumes a lot of space. Hope this answers the question.</span>
Kay [80]3 years ago
3 0
<h3><u>Answer;</u></h3>

The location of wind farms

<h3><u>Explanation;</u></h3>

-<em><u>Wind power involves use of wind to generate electricity or mechanical power.</u></em> This happens when wind is used to turn blades then the turning blades spin a shaft connected to generator which converts kinetic energy to electrical energy.

-<em>Despite the advantages of wind such as little impact on environment, it has a number of challenges which includes;</em>

  • <em>Wind power is not as cost effective as fossil fuels.  </em>
  • <em>Noise pollution which has impact on birds </em>
  • <em>Other needs for land than energy generation </em>
  • <u><em>Wind sites are located far from urban areas, making it more expensive to transfer energy farther.</em></u>
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A 2.40 kg snowball is fired from a cliff 7.69 m high. The snowball's initial velocity is 13.0 m/s, directed 49.0° above the hori
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Answer:

a) W = 180.87 J , b)  ΔU = -180.87 J , c)  ΔU = -180.87 J

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         W = F s cos θ

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        W = m g y

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    W = 2.40 9.8 (7.69-0)

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c) in this case we change the reference system to the height of the cliffs, for this configuration

          y₀ = 0

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          ΔU = 2.4 9.8 (-7.69 -0)

          ΔU = -180.87 J

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