The frequency range for a normal human ear is between 20Hz and 20 000 Hz. Using 330 m/s as the speed of sound,

The difference between a red shift and a blue shift has to do with wavelength frequency. t or f

Clothes dryer uses about 7 amps of current from a 240 volt line. how much power does it use?

Why can blue light and yellow light combine to produce white light? question 17 options: they are both primary colors of light. they absorb each other's wavelengths. because blue, yellow, and white are primary colors. they are complementary colors of light.