A student sends a transverse wave pulse of amplitude A along a rope attached at one enAs the pulse returns to the student, a second pulse of amplitude 3A is sent along the opposite side of the ropWhat is the resulting amplitude when the two pulses interact?

a. 4A
b. A
c. 2A, on the side of the original wave pulse
d. 2A, on the side of the second wave pulse

what is the speed of a softball that travels 20m in 2secs

speed = 20/2 = 10 m/s

the small 0.38-kg slider is known to move from position a to position b along the vertical-plane slot. determine (a) the work done on the body by its weight and (b) the work done on the body by the spring. the distance r = 0.70 m, the spring modulus k = 154 n/m, and the unstretched length of the spring is 0.53 m

explanation:

-reverse card

+15-35=-20

going in opposite directions