As the ball is going downwards a. the velocity and acceleration ...

[genevieve1028]

As the ball is going downwards
 a. the velocity and acceleration both point up
  b. the velocity points up and the acceleration down
  c. the velocity points down and the acceleration up
  d. the velocity and acceleration both point down
  e. the acceleration is zero

Question 2

Diffraction takes place:
 a. on highly reflective surfaces.
  b. on rough surfaces.
  c. around the edges of barriers.
  d. for waves moving through empty space.
  e. in the center of shadows.

[peilian]

Answer to Question 1

D

Answer to Question 2

c

[genevieve1028]

Thanks

[peilian]

Welcome