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xeze [42]
2 years ago
8

If 5J of work are done on a spring, compressing it by 12cm, what is the spring constant?

Physics
1 answer:
laiz [17]2 years ago
7 0

Answer:

hi

Explanation:

hello

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If you push a crate across a factory floor at constant speed in a constant direction, what is the magnitude of the force of fric
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Answer:

The magnitude of the force of friction equals the magnitude of my push

Explanation:

Since the crate moves at a constant speed, there is no net acceleration and thus, my push is balanced by the frictional force on the crate. So, the magnitude of the force of friction equals the magnitude of my push.

Let F = push and f = frictional force and f' = net force

F - f = f' since the crate moves at constant speed, acceleration is zero and thus f' = ma = m (0) = 0

So, F - f = 0

Thus, F = f

So, the magnitude of the force of friction equals the magnitude of my push.

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It is easier to climb up a slanted slope than a vertical slope
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A typical wall outlet voltage is 120 volts in the United States. Personal MP3 players require much smaller voltages, typically 2
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Number of turns in secondary will be 7

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We have given primary voltage V_p=120volt

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We know that \frac{N_p}{N_s}=\frac{V_p}{V_s}

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N_s=6.60

As the number of turns can not be in decimal so number of turns will be 7

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What is Newton's third law ?​
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