Answer: police use infred waves,
radio waves have largest wave length, the
only part of the spectrum seen by humans is visible waves
gamma waves have shortest wave length
Explanation:
Infared = used by police
gamma = short wavelength
radio = largest wavelength
visible = only ones we can see
Answer:
1,200 watts
1 watt = 1 Joule (J) of work / second
So, 3600 Joules of work / 3 seconds is:
3600 J / 3 seconds = 1,200 watts
frequency = 5 Hz
F = v/wavelength
F = 340/68 =5Hz
