An elephant can hear sound with a frequency of 15.0 Hz. What is ...

[notis]

An elephant can hear sound with a frequency of 15.0 Hz. What is the wavelength of this wave? The speed of sound in air is 343 m/s.
 
  What will be an ideal response?

Question 2

A car moves from a point located 26.0 m from the origin and at an angle of 35.0 from the x-axis to a point located 56.0 m from the origin and at an angle of 60.0 from the x-axis in 2.50 s.
 
  What is the magnitude of the average velocity of the car? A) 12.7 m/s
  B) 13.7 m/s
  C) 16.1 m/s
  D) 18.3 m/s
  E) 17.2 m/s

[KKcool]

Answer to Question 1

22.9 m

Answer to Question 2

B

[notis]

Thanks for the timely response, appreciate it

[patma1981]

Gracias!