Which part of the ear first gathers sound, and is often pierced? stirrup
hammer
auricle
cochlea

Which fators influence ocean currents

What are similarities and differences of reflection, refraction, diffraction and absorption?

Which statement best describes the superposition principle? a.) if two in-phase waves arrive simultaneously at a point, their amplitudes add up b.) if two out-of-phase waves arrive simultaneously at a point, their amplitudes add up c.) if two in-phase waves arrive at a point one after another, their amplitudes add up d.) if two out-of-phase waves arrive at a point one after another, their amplitudes adds up