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egoroff_w [7]
2 years ago
12

A fan converts 4.2 kJ of electrical energy to kinetic energy every minute. The power of the fan is...

Physics
1 answer:
miss Akunina [59]2 years ago
4 0

The power of the fan is 70 Watt.

<h3 /><h3>What is power?</h3>

Power can be defined as the rate at which energy is used. The S.I unit of power is Watt (W)

The power of the fan can be calculated using the formula below.

<h3>Formula:</h3>
  • P = E/t.......................... Eqaution 1

<h3>Where:</h3>
  • P = Power of the fan
  • E = Energy of the fan
  • t = time

From the question,

<h3>Given:</h3>
  • E = 4.2 kJ = 4200 J
  • t = 1 minutes = 60 seconds.

Substitute these values into equation 1

  • P = 4200/60
  • P = 70 Watt.

Hence, The power of the fan is 70 Watt.

Learn more about power here: brainly.com/question/3631756

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When an atom is involved in a nuclear reaction:
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3 years ago
A sinusoidal wave travels along a string. The time for a particular point to move from maximum displacement to zero is 0.13 s. W
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Answer:

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Part b)

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Explanation:

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so total time period of the particle is given as

T = 4\times 0.13 = 0.52 s

now we have

Part a)

T = time to complete one oscillation

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so T = 0.52 s

Part b)

As we know that frequency and time period related to each other as

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f = \frac{1}{0.52}

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Part c)

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3 years ago
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3 years ago
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