The medium affects the speed of the wave that passes through it. One factor that affects the speed of a wave is the

answer would be letter choice (a),   a ball resting on a shelf. would be another example of potential energy   >   stored energy > not moving.

a ball spinning on a finger   >   kinetic energy > moving energy

a ball rolling on the ground   >   kinetic energy   > moving energy

a   ball flying through the air   > kinetic energy   >   moving energy

hope that                                         : )

technology is the application of the knowledge gained by science.

0.93xc=0.93x3x10^8m/s

2.54cm is 1 inch

360seconds i 1 hr

distance = 150m

displ = root (50 ^2 + 100^2)

root(2500+10000)

root 125000