3 years ago

What are some ways to conserve electricity

2 answers:

7 0

Turn off lights when leaving rooms.

Unplug unused appliances. Even when powered off these appliances use electricity.

Replace regular light bulbs with energy saving bulbs.

Natali [406]3 years ago

6 0

-- Turn off the lights when you leave a room.

-- Use "energy efficient" appliances and low-energy lights.

-- Go to bed when the sun sets & get up when it rises.

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A person 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 suc

umka21 [38]

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$I=0.0795\ W/m^2$

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 :

$I=\dfrac{P}{A}$