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Finding the distance at a particular sound intensity.

A rocket in a fireworks display explodes high in the air. The sound spreads out uniformly in all directions. The intensity of the sound is 2.0 *10^-6 W/m^2 at a distance of 120 m from the explosion. Find the distance from the source at which the intensity is 0.80 *10^-6 W/m^2.

Subject:

Physics

Topic:

Other

Posting ID:

5916

OTA ID:

102389

View Details $1.99 Download Add to Cart

Decibels

The volume control on a stereo amplifier is adjusted so the sound intensity level increases from 23 to 61 dB. What is the ratio of the final sound intensity to the original sound intensity?

Subject:

Physics

Topic:

Other

Posting ID:

5917

OTA ID:

103144

View Details $1.99 Download Add to Cart

Decibels

The volume control on a stereo amplifier is adjusted so the sound intensity level increases from 23 to 61 dB. What is the ratio of the final sound intensity to the original sound intensity?

Subject:

Physics

Topic:

Other

Posting ID:

5924

OTA ID:

103144

View Details $1.99 Download Add to Cart

sound

A sonar unit on a submarine sends out a pulse of sound into seawater. The pulse returns 1.30 seconds later. What is the distance to the object that reflects the pulse back to the submarine?

Subject:

Physics

Topic:

Other

Posting ID:

5925

OTA ID:

103144

View Details $1.99 Download Add to Cart

Periodic waves

A longitudinal wave with a frequency of 3.0 Hz takes 1.7 seconds to travel the length of a 2.5m Slinky. Determine the wavelength of the wave.

Subject:

Physics

Topic:

Other

Posting ID:

5926

OTA ID:

103144

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