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gladu [14]
3 years ago
6

How long does it take a 1.51 × 104 W steam engine to do 8.72 × 106 J of work? Round your answer to three significant figures

Physics
1 answer:
DerKrebs [107]3 years ago
5 0
5.77 x 10^2 So it’s v
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Which of the following is a small star that has reached the end of its stellar evolution?
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**URGENT** Roberto plans to use two transformers to reduce a voltage of 120 V to 4 V. He uses a transformer that has 300 coils i
skelet666 [1.2K]

As we know that in transformers we have

\frac{V_s}{V_p} = \frac{N_s}{N_p}

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\frac{V_s}{V_p} = \frac{N_s}{N_p}

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DiKsa [7]

Answer:

630 Hz.

Explanation:

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we can find the wavelength by multiplying the levels distance by 2.

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f = Vs/λ

  = 340/0.54

  = 630 Hz

6 0
3 years ago
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