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anzhelika [568]
3 years ago
7

An object moves with constant velocity . •1st law •2nd law

Physics
1 answer:
denis23 [38]3 years ago
4 0

Answer:

An object moves with constant velocity .

Explanation:

•2nd law

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By what factor is the self-inductance of an air solenoid changed if its length and number of coil turns are both tripled
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Answer:

The new self inductance is 3 times of the initial self inductance.

Explanation:

The self inductance of a solenoid is given by :

L=\dfrac{\mu_oN^2 A}{L}

Where

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A is area of cross section

l is length of solenoid

If length and number of coil turns are both tripled,

l' = 3l and N' = 3N

New self inductance is given by :

L'=\dfrac{\mu_oN'^2 A}{L'}\\\\=\dfrac{\mu_o(3N)^2 A}{3L}\\\\=3\dfrac{\mu_oN^2 A}{L}\\\\=3L

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A gas is collected from a radioactive material; upon inspection, the gas is identified as helium. the presence of the helium ind
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The weight of a block on the inclined plane is 500 N and the angle of incline is 30 degrees. What is the magnitude of the force
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Answer:

250 N

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Explanation:

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