When water waves approach an obstacle such as the supports holding up a pier, they will bend around the supports. this wave phenomenon is called a. reflection. b. refraction. c. diffraction. d. polarization

Asap i'm in class rn a 1,000-kg car is traveling 20 m/s on a flat stretch of road. it gets to a hill and coasts uphill until it stops. how high up the hill does the car travel? givens: equation: 1/2mv2initial=mghfinal solve for h. plug & chug, label.