Aperson shouting at the top of his lungs emits aboue 1.0 w of energy as sound waves. what is the sound intensity 1.0 m from such a person

Explanation:

When a person shouts it emits 1 W of energy as sound waves, P = 1 W

Let I is the sound intensity 1 meters from such a person. We know that the power per unit area is called the sound intensity of the person. Its formula is given by :

So, the sound intensity of such a person is . Hence, this is the required solution.

r=rho l/a where a is the area, l is the length and rho is resistivity so the greater the area the lesser the resistance thats why the earth pin is thicker bcos current follow the shortest path, so less resistive .

uranium fissions/breaks up giving out energy and neutrons