At a rock concert, it is desired to have a sound intensity of 2.6 w/m2 for those patrons seated 25 m from the speakers. if you assume that the sound is emitted from the speakers equally in all directions, what is the power output needed from the sound system?

Power, P = 20.4 kW

Explanation:

It is given that,

Intensity of sound,

Distance from the speakers, r = 25 m

We need to find the power output needed from the sound system. Intensity is given by :

P = 20420.35 Watts

or

P = 20.4 kW

So, the power output needed from the sound system is 20.4 kW. Hence, this is the required solution.

wind moving at higher speeds will transfer more energy to the water, resulting in stronger waves.

the answer is ampere

the ampere is used to measure electricity. an ampere is a unit of electric current equal. a unit of measure for the flow of current in a circuit. one ampere is the amount of current flow provided when one volt of electrical pressure is applied against one ohm of resistance.