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Mila [183]
4 years ago
10

If the amplitude of a sound wave is made 3.0 times greater, by what factor will the intensity increase? Express your answer usin

g two significant figures. I/I0I / I 0 = nothing Request Answer Part B If the amplitude of a sound wave is made 3.0 times greater, by how many dB will the sound level increase? ββ = nothing dB Request Answer Provide Feedback
Physics
1 answer:
vesna_86 [32]4 years ago
4 0

Answer:

Calculating Sound Intensity Levels: Sound Waves

Calculate the sound intensity level in decibels for a sound wave traveling in air at 0ºC

and having a pressure amplitude of 0.656 Pa.

Explanation:

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3 years ago
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3 years ago
The earth rotates every 86,160 seconds. What is the tangential speed (in m/s) at Livermore (Latitude 37.6819° measured up from e
Lena [83]

Answer:

The tangential speed at Livermore is approximately 284.001 meters per second.

Explanation:

Let suppose that the Earth rotates at constant speed, the tangential speed (v), measured in meters per second, at Livermore (37.6819º N, 121º W) is determined by the following expression:

v = \left(\frac{2\pi}{\Delta t}\right)\cdot R \cdot \sin \phi (1)

Where:

\Delta t - Rotation time, measured in seconds.

R - Radius of the Earth, measured in meters.

\phi - Latitude of the city above the Equator, measured in sexagesimal degrees.

If we know that \Delta t = 86160\,s, R = 6.371\times 10^{6}\,m and \phi = 37.6819^{\circ}, then the tangential speed at Livermore is:

v = \left(\frac{2\pi}{86160\,s} \right)\cdot (6.371\times 10^{6}\,m)\cdot \sin 37.6819^{\circ}

v\approx 284.001\,\frac{m}{s}

The tangential speed at Livermore is approximately 284.001 meters per second.

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3 years ago
Scientists in a test lab are testing the hardness of a surface before constructing a building. Calculations indicate that the en
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It depends on what that "certain amount" is.
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what did classical physics predict would happen to the light given of by an object as its tempurtare increased
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When the temperature of an object that is giving off light is increased, the particles in the object will move at a faster rate and there will be increased vibration of these molecules. This will makes the object to emit more light and to shine more brightly.
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3 years ago
Read 2 more answers
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