You have to be at least 16 years old.
frequency's unit is Hz which mean cycles per second
given frequency * wavelength = speed of wave
speed of light = 3x10^8 m/s
wavelength = 680nm = 680x10^-9 m
frequency * 680x10^-9 m = 3x10^8 m/s
frequency = 3x10^8 / 680x10^-9
= 4.41x10^14 Hz
= 441x10^12 Hz
= 441 THz
which is the frequency for red light
Answer: (A) The Ottoman army increasingly relied on the contributions of the Janissary corps, which was mostly composed of soldiers of non-Turkic origin.
Explanation:
the dude didnt even include the answers or the statements but im so smart i already knew the answer.
Three main functions are protection regulation and sensation. Protection is primary I️ believe.
