Which of the following is a true wave as the word is defined in ...

[OSWALD]

Which of the following is a true wave as the word is defined in physics?
 
  A) ripples on the surface of a pond, extending outward from a pebble dropped in the water
  B) a row of falling dominoes, in which each domino knocks over its neighbor as it falls
  C) Both of the above.
  D) a large water wave coming into the beach, one that surfers can ride on
  E) All of the above.

Question 2

If you run a complete loop around an outdoor track of length 400 m in 100 s, find your
  (a) average velocity and (b) average speed.
 
  What will be an ideal response?

[akemokai]

Answer to Question 1

C

Answer to Question 2

(a) 0 m/s (b) 4 m/s

[OSWALD]

Wow, this really help

[raenoj]

Great answer, keep it coming