a spherical sound wave source at the origin emits a sound wave with frequency 13100Hz and a wave speed of 346m/s. what is the phase difference in degrees and radians between the two points with (x,y,z) co-ords (1cm,3cm,2cm) and (-1cm,1.5cm,2.5cm)??
The Attempt at a Solution
i know this question seems simple but is it really just that, it doesnt seem right????
what about the x,y,z co-ords, y tell me them?????? plz does anyone have any idea??