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Sagot :
So, the power that used by the washing machine is 400 Watt.
Introduction
Hi ! Here, I will help you to calculate the power generated. Power is work done per unit time. If a person or machine can do a large amount of work in the shortest possible time, it will produce or require a large amount of power. The relationship between power, work, and time is expressed in the equation:
[tex] \boxed{\sf{\bold{P = \frac{W}{t}}}} [/tex]
With the following condition :
- P = power that produce or require (Watt)
- W = work that had done (J)
- t = interval of the time (s)
Problem Solving
We know that :
- W = work that had done = 7,200 J
- t = interval of the time = 3 minutes = 3 × 60 = 180 s
What was asked :
- P = power that used = ... Watt
Step by step :
[tex] \sf{P = \frac{W}{t}} [/tex]
[tex] \sf{P = \frac{7,200}{18}} [/tex]
[tex] \boxed{\sf{P = 400 \: Watt}} [/tex]
Conclusion :
So, the power that used by the washing machine is 400 Watt.
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