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4 years ago

14

Your ears are sensitive to differences in pitch, but they are not very sensitive to differences in intensity. You are not capabl

e of detecting a difference in sound intensity level of less than 1 dB. By what factor does the sound intensity increase if the sound intensity level increases from 60 dB to 61 dB

1 answer:

VLD [36.1K]4 years ago

3 0

Answer:

1.29

Explanation:

The level of intensity of sound (β) (in decibels, dB) is given by:

β = $10log_{10}(\frac{I}{I_0} )$ , where I = sound intensity in watts per meter squared and $I_0$ = reference intensity.

Change in sound intensity level (Δβ) = $\beta _2 - \beta _1$ = 61 - 60 = 1

Δβ = $10log_{10}(\frac{I_2}{I_0}) - 10log_{10}(\frac{I_1}{I_0})$ = 1

$10log_{10}(\frac{I_2}{I_0})/(\frac{I_1}{I_0})$ = 1

$10log_{10}(\frac{I_2}{I_1})$ = 1

$\frac{I_2}{I_1}$ = $10^{0.1}$ = 1.29

Hence, the sound intensity will increase by a factor of 1.29.

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The solid right-circular cylinder of mass 500 kg is set into torque-free motion with its symmetry axis initially aligned with th

aivan3 [116]

Answer:

30.95°

Explanation:

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Replacing the values we have,

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At the same time we can calculate the mass moment of intertia of cylinder but in an axial way, that is,

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Replacing the values that we have,

$\Phi = 2tan^{-1}\sqrt{\frac{(\frac{197.9}{cos5\°})^2-197.9^2}{62.5^2}}$

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4 years ago

PHYSICS 50 POINTS PLEASE HELP

babymother [125]

Newton’s First Law of Motion - if an object is at rest, it takes un-

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3 years ago

Read 2 more answers

What maximum force do you need to exert on a relaxed spring with a 1.2×104-n/m spring constant to stretch it 6.0 cm from its equ

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Answer:

Maximum force will be equal to 720 N

Explanation:

We have given that spring constant $k=1.2\times 10^4N/m$

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4 years ago

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Pavel [41]

Answer:

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Suppose you do work on an object from rest to a certain speed v. Why does it take four times the amount of work to increase its

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