Explanation:
It took for the sound to reach the 1st wall and at the same time time, the same sound took to reach the 2nd wall. Assuming that the sound travels at 343 m/s, then let be the distance of the person to the 1st wall and be the distance to the 2nd wall. So the distance between the walls X is
If there's any point in a circuit where the current has a choice
of which branch to take, then you have a <em>parallel circuit</em>.
Answer:
Wavelength = <u>1.5 m</u>
Explanation:
The formula for waves in terms of wavelength, speed and frequency is:
Speed (v) = Frequency (f) × Wavelength (λ)
33 = 22 × λ
33 = 22λ
λ =
So, λ = 1.5 m
The answer you are looking for is:
D.) It facilitates the moment of the current though a wire.
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