Which term best describes the motion of the rope particles in relation to the motion of the rope wave shown in the photograph? A. Perpendicular
B. Longitudinal
C. Parallel
D. Circularn

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