Find the intensity i of the sound waves produced by one 60-w speaker at a distance of 1.0 m.

the intensity of the sound waves produced by one 60-w speaker at a distance of 1.0 m is 60 w/m²

Explanation:

Intensity of sound , I, is given as;

I  = P/A

Where;

P is the power through an area = 60-w

A is the area = ?

A = 1.0m × 1.0m = 1.0 m²

I = 60-w / 1.0 m²

I = 60 w/m²

Therefore, the intensity of the sound waves produced by one 60-w speaker at a distance of 1.0 m is 60 w/m²

according to jean piaget, in what stage of cognitive development are children able to understand conservation task?

b. preoperational

just took it