Answer:
d= 1.56 m
Explanation:
In order to have a constructive interference, the path difference between the sources of the sound, must be equal to an even multiple of the semi-wavelength, as follows:
⇒ d = d₂ - d₁ = 2n*(λ/2)
The minimum possible value for this distance, is when n=1, as it can be seen here:
dmin = λ
In any wave, there exists a fixed relationship between the wave speed, the frequency and the wavelength:
v = λ*f
If v = vsound = 343 m/s, and f = 220 1/s, we can solve for λ:
λ =
⇒ dmin =λ = 1.56 m
Answer:
Power lines
Explanation:
Generators induce that current that runs the turbines
Turbines also induce currents from water waves that is transmitted.
Transformers change A.C to D.C or vice versa.
Human lack chlorophyll, which is the function that collects energy from the Sun to conduct photosynthesis.
Answer:
Things you should do for your family
- help your parents
- treat them kindly
- listen and obey them
- appreciate them for anything they do for you
- talk softly
things you shouldn't
- backanswering them
- Disobey
- And anything that's harsh or make it parents sad
<span>B?) Electric field E = q / (εo*A)
C) V = E*d = q*d / (εo*A)
D) V = q / C
so C = q / V = q * 1/V = q*εo*A / q*d = εo*A / d
I hope this helps! ^_^
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