A 0.5 kg hockey puck traveling at 10 m/s comes to rest in 47 m. Find the a. Weight of the hockey puck b. Force of friction

You've already seen the value of 9.8 in this lesson. what's this value called? what quantity does it represent?

Aweight lifter raises a 1600 n barbell to a height of 2.0 meters. how much work was done? w = fd a) 30 joules b) 3000 joules c) 320 joules d) 3200 joules

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