What type of wave is a sound wave? (Check all that apply.) A) Do not require a medium through which to travel

B) Compressional

C) Mechanical

D) Require a medium through which to travel

Which subatomic particle has a negative charge

Awave with a frequency of 500 hz is traveling at a speed of 100 m/s. what is the wavelength?

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