Is an imbalance of electric charges within or on the surface of a material.
Answer
Wavelength= 30*20^8/30=10^7m
Explanation:
Velocity = frequency *wavelength
We're frequency=30HZ
Velocity of light= 3*10^8m/s
Wavelength= 30*20^8/30=10^7m
Explanation:
The answer would be 2.1 centimeters per year
1m = 100 cm
1km = 1,000 m
1,000 m = 100,000,000 cm
2.1 x 100,000,000 = 210,000,000
210,000,000/100,000,000 = 2.1 cm
hope this helps!!