Answer:
r=[tex]\frac{1}{2}[/tex] [tex]\sqrt{\frac{P}{\pi I} }[/tex]
Step-by-step explanation:
Power output has a formula : P=4πIr²
To solve formula for the distance from source, r . We first begin with:
P=4πIr²
we just need the value of r, so:
4πIr² = P
Cross multiply 4πI
r² = [tex]\frac{P}{4 \pi I}[/tex]
Now taking square root, we get :
r = [tex]\sqrt{\frac{P}{4\pi I} }[/tex]
r =[tex]\frac{1}{2}[/tex] [tex]\sqrt{\frac{P}{\pi I} }[/tex]
which is the distance 'r' from the source of a sound with power output of P
