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Rasek [7]
3 years ago
7

What happens when the elevator is in free-fall, that is, what is the value for FN and what is the sensation experienced by the p

erson in the elevator? Also, discuss the meaning of FN<0.
Physics
1 answer:
Komok [63]3 years ago
7 0

Answer:

Weightlessness

Explanation:

When the elevator is in free fall, this can only occur when the cord of the elevator breaks.

The acceleration of the elevator will be equal to the acceleration due to gravity. That is:

a = g

Then, the body will experience what we called WEIGHTLESSNESS

Where the normal reaction N of the person will tend to zero. That is

N = 0

The value of FN < 0 because the person inside the lift will experience weightlessness.

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3 years ago
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Readme [11.4K]

Answer:

0.000225 m

Explanation:

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\frac{\Delta L}{L} = \alpha_L\Delta T\\\Rightarrow \Delta L=\alpha_L\Delta T\times L\\\Rightarrow \Delta L=3\times 10^{-6}\times 0.3\times 250=0.000225\ m

Change in length of the Pyrex glass dish is 0.000225 m.

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Explanation:

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Answer: C, constant, you’re welcome
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I’m not sure if its correct but I think it’s focal Ray point


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8 0
3 years ago
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