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 peace treaty is an agreement between two or more hostile parties, usually countries or governments, which formally ends a state of war between the parties
The correct answer for the question that is being presented above is this one: "B) the ratio between the second and fourth digits on the hand." One of the best physical indicators of exposure to prenatal androgens is <span>the ratio between the second and fourth digits on the hand.</span>
Stress and trauma. There are many reason why children eyewitness testimonies may not be completely accurate, one of which could be stress and trauma. When children experience a traumatic and stressful event, their ability to accurately recall the event becomes impaired.