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marysya [2.9K]
3 years ago
14

You are given the speed of a wave and it's period. What kind of information can you also find out about this wave?

Physics
1 answer:
ozzi3 years ago
5 0
Its frequency because you already found out its speed & period 
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The world energy consumption was about 6*10^22 J. How much area must a parallel plate capacitor need to store this energy Assume
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Answer:

A = 5 \times 10^{32} m^2

Explanation:

As we know that the energy stored in the capacitor is given as

Q = \frac{1}{2}CV^2

here we know that

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also we know that

V = 5 Volts

now we have

6 \times 10^{22} = \frac{1}{2}C(5^2)

C = 4.8 \times 10^{21} F

now we know the formula of capacitance

C = \frac{\epsilon_0 A}{d}

4.8 \times 10^{21} = \frac{(8.85 \times 10^{-12})(A)}{1}

A = 5 \times 10^{32} m^2

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