4 years ago

Why is it necessary that the solar concentrators used by solar power plants be able to move throughout the day?

Physics

2 answers:

Aliun [14]4 years ago

7 0

To track the sun as it's moving across the sky. Hope this helps!

vesna_86 [32]4 years ago

4 0

To track the sun as it moves through out the day

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Answer:

138.18 minutes

Explanation:

$L_v$ = Latent heat of water at 0°C = 80 cal/g

m = Mass of water = 570 g

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$Q=mL_v\\\Rightarrow Q=570\times 80\\\Rightarrow Q=45600\ cal$

Let N be the number of cycles and each cycle removes 56 cal from the freezer.

So,

$55\times N=45600\\\Rightarrow N=\frac{45600}{55}$

Each cycle takes 10 seconds so the total time would be

$\frac{45600}{55}\times \frac{10}{60}=138.18\ minutes$

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AysviL [449]

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