Answer:
Let the power delivered by the sound wave be 'P'
Intensity by definition is the power delivered per unit area.
i.e. I =
dA
dP
;
In spherical polar coordinate system dA = r
2
Ω
I =
r
2
Ω
dP
;
I ∝
r
2
1
So if distance increases 3 fold. The Intensity becomes
9
1
times the initial
Answer:
pretty sure it's true....
That depends on the resistance between the ends of the voltage.
Answer:
Heating
Cooling
Water Heater
Washer and Dryer
Lights
Explanation:
mark as brainliest and drop some thanks!!