The wave speed is 37 m/s and the wavelength is 4 m, what is the frequency?

Current enters a circuit at a: 1.positive terminal 2.negative terminal 3.low potential side 4.resistor

Apersons beliefs and general outlook, which act like filters on the information they receive are called ?

Macy always thought there were only a few hair colors blonde brown and black however when she actually began looking around she saw varying shades of these hair color what is a possible reason for so many different hair colors