Which graph best represents the relationship between the electric current and the rate at which a magnet is turning inside an el
2 answers:
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The diagram is missing; however, we know that the intensity of a sound wave is inversely proportional to the square of the distance from the source:
where I is the intensity and r is the distance from the source.
We can assume for instance that the initial distance from the source is r=1 m, so that we put
The intensity at r=3 m will be
Therefore, the sound intensity has decreased by a factor
.
where I is the intensity and r is the distance from the source.
We can assume for instance that the initial distance from the source is r=1 m, so that we put
The intensity at r=3 m will be
Therefore, the sound intensity has decreased by a factor
Distance , d = a+b
The unit of d is in meter and t is in seconds.
So the unit of a a must be meter.
Now we have unit of b is meter.
So unit of b*
= meter
Unit of b = meter/
So unit of a = m and unit of b = m/
.
The unit of d is in meter and t is in seconds.
So the unit of a a must be meter.
Now we have unit of b
So unit of b*
Unit of b = meter/
So unit of a = m and unit of b = m/