What is the peak intensity β in decibels at a distance of 1 m from the firecracker?

140dB

Explanation:

In this problem you will be using the decibel scale to analyze a small firecracker that emits 1200 of peak  power

In order to find to find the peak intensity in dB we must first determine the intensity in W/m^2 that the  firecracker is producing:

I=  P/(4π)

I= 1200/(4π ) =>96W/m^2

now the intensity in decibels can be calculated by using the dB conversion equation

β= 10log ( )dB

is a reference intensity in the above formula i.e for sound waves and its value is W/m^2

β=10log( )dB => 10log(9.6x )dB

β= 140dB

therefore, at a distance of 1 m from the firecracker the peak intensity β is 140dB

hi there!

your question asks at which segment does freezing occur.

since we're talking about water, the freezing point of water will be 32 degrees fahrenheit or below.

hope this ! ~