Answer:
A cultural boundary (also cultural border) in ethnology is a geographical boundary between two identifiable ethnic or ethnolinguistic cultures.
Explanation:
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
D- arts, audio/video technology and communication
Have you ever done community service or helped lead a big project? Even just some nice things you've done for your school.
Answer: Increase, decrease
Explanation: positive reinforcement increases the likelihood of a behavior being repeated. Negative reinforcement decreases the likelihood of a behavior being repeated.
Hoped that helped.
