Question

Sound waves can be ranked by their intensity, I, given in this formula, where r is the distance from the source of a sound with a power output of P=4 πIr^2 Which equation correctly rewrites the formula to solve for I?

Answer 1

The formula to solve for intensity, I, is I = P / (4πr²), where P is the power and r is the distance from the source of the sound wave.

Step-by-step explanation:

The formula to solve for intensity, I, is given as:

I = P / (4πr²)

Where P is the power and r is the distance from the source of the sound wave.

For example, if the power output of a sound wave is 10 W and the distance from the source is 5 m, the intensity can be calculated as follows:

I = 10 / (4π(5^2)) = 0.08 W/m²

Answer 2

See below

Step-by-step explanation:

P = 4pir^2 l divide both sides by 4 pi r^2

l = P /(4pir^2)