A wagon with a weight of 300.0 N is accelerated across a level surface at 0.5 m/s2. What net force acts on the
wagon? (g = 9.81 m/s2)

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