Two point sources of sound produce tones of 125 hz. the sources are generating sound in phase. in some coordinate system one source is at the origin and the other source is at latex: x₂ = 6.7 m. what is the absolute value of the phase difference (in radians) between the two waves at the point x=14.4 m? take the speed of sound to be 340 m/s.

waves moving from a fast medium to a slow medium will experience a reflection as light travels more slowly than red light. total internal reflection occurs when the critical angle is.

the electric field is a “force field” around a charged object that illustrates the direction the electric force would push an imaginary 

mass and volume are the answers you are looking for