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Elena-2011 [213]
2 years ago
5

How is sound intensity measured?

Physics
1 answer:
muminat2 years ago
7 0

Answer:

Sound intensity is measured with a sound level meter or Sound pressure Level (SPL) Meter.

Explanation:-

It measure sound intensity is the sound pressure level. The unit of measurement is decibels.

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. If she
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9 meters

Explanation:

Given:

Mass of Avi is, m=40\ kg

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So, by law of conservation of energy, decrease in elastic potential energy is equal to increase in gravitational potential energy.

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EPE=\frac{1}{2}kx^2\\EPE=\frac{1}{2}\times 176400\times (0.20)^2\\EPE=88200\times 0.04=3528\ J

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Therefore, Avi will reach a maximum height of 9 meters.

6 0
3 years ago
What force is needed to give a 4.5-kg bowling ball an acceleration of 9 m/s2?
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