Three pulses with amplitudes of -1 cm, 3 cm, and 7 cm pass through point Y 1 point
on a string at the same time. The displacement of point Y will be:

dec 23, 2016 - a load of bricks weighing 680 n a distance of 10 m across a parking lot. if if the worker pushes the cart with a constant force of 209 n, what work= force x distance = 220 n x 10 m = 2200 n.m = 2200 j i don't know where the person got it from, but the initial part, work= force x distance me.