If you shout across a canyon and the echo returns in four ...

[dejastew]

If you shout across a canyon and the echo returns in four seconds, how far away is the other side? (Velocity of sound in air is 300 m/s).
 a. 150 b. 300 c. 600 d. 1200 e. 2400 meters

Question 2

A race car moving with a constant speed of 60 m/s completes one lap around a circular track in 50 s. What is the magnitude of the acceleration of the race car?
 a. 8.8 m/s2
  b. 7.5 m/s2
  c. 9.4 m/s2
  d. 6.3 m/s2
  e. 5.3 m/s2

[Joy Chen]

Answer to Question 1

c

Answer to Question 2

B

[dejastew]

Both answers were spot on, thank you once again

[Joy Chen]

Great! Please up vote