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Arisa [49]
3 years ago
9

Which letter in the figure below marks 1 millimeter

Physics
1 answer:
kondor19780726 [428]3 years ago
5 0
Do you have a picture then I could determine 1 millimeter
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What is the acceleration so due to gravity and horizontal force the acceleration will be A
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Jet aircraft maintenance crews are required to wear protective earplugs. Members of a particular crew wear earplugs that reduce
Taya2010 [7]

Answer:

So the sound intensity level they would experience without the earplugs is 110.32dB.

Explanation:

Given data

Sound intensity by factor =215

Sound intensity level =87 dB

To find

Sound intensity level they would experience without the earplugs

Solution

First we need to find the new sound intensity level

So

I_{n}=215(10^{\frac{87}{10} } )\\I_{n}=1.08*10^{11})

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dB=10log(I_{n})\\

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So the sound intensity level they would experience without the earplugs is 110.32dB.

7 0
3 years ago
A snowball is rolling down a hill at 4.5 m/s and accumulating snow as it goes. Its diameter begins at 0.50 m and ends at the bot
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To find the change in centripetal acceleration, you should first look for the centripetal acceleration at the top of the hill and at the bottom of the hill.

The formula for centripetal acceleration is:
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where:
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assuming the velocity does not change:

at the top of the hill:
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at the bottom of the hill:
centripetal acceleration = (4.5 m/s^2) divided by 1.25 m
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to find the change in centripetal acceleration, take the difference of the two.
change in centripetal acceleration = centripetal acceleration at the top of the hill - centripetal acceleration at the bottom of the hill

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What is refraction of light?
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Explanation:

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