Answer:
75000 Hz
Explanation:
f = V / λ (f= frequency, v=velocity of wave, lambda= wavelength)
alternatively, f = c / λ (f= frequency, c= speed of light- 3.00x10^8 m/s, lambda= wavelength)
f= [3.00x10^8 m/s]/[4000 m]
=75000 Hz
Using an example like Christmas lights, I would say yes because normally a lot of them would go out if one light is broken.
Precipitation occurs when the product of the ion concentration exceeds the Ksp.
