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Fudgin [204]
3 years ago
7

How much power does an Ox pulling a plow 20 m cross a field, exerting 120J of work over a period of 15 s?​

Physics
1 answer:
Aleksandr-060686 [28]3 years ago
3 0

Answer:

8W

Explanation:

Given parameters:

Distance covered  = 20m

Work done  = 120J

Time  = 15s

Unknown:

How much power does the Ox exerts  = ?

Solution:

Power is the rate at which work is being done

  Power  = \frac{Work done }{time}  

 Power exerted by ox  = \frac{120}{15}   = 8W

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Sholpan [36]

Answer:

1.31 m

Explanation:

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c=f \lambda

where

c is the speed of the wave

f is the frequency

\lambda is the wavelenfth

In this problem, we have

c = 343.06 m/s

f = 261.63 Hz

So we can solve the formula for the wavelength:

\lambda=\frac{c}{f}=\frac{343.06 m/s}{261.63 Hz}=1.31 m

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3 years ago
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UkoKoshka [18]

Explanation:

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Now, putting the values we will calculate the electric field as follows.

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Now, we will calculate the average magnetic field as follows.

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3 0
3 years ago
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aliya0001 [1]

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Explanation:

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3 0
4 years ago
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