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tatiyna
3 years ago
13

Help please I will mark you the brainly!

Physics
2 answers:
chubhunter [2.5K]3 years ago
4 0
D is not the constant
Fudgin [204]3 years ago
3 0

D)

Explanation:

Coz the position changes with time but the position change is not constant throughout time So, D) does not have constant velocity

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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})

The dB can be calculated as:

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

Substitute the given values

dB=10log(1.08*10^{11})\\dB=110.32dB

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

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