An open pipe of length L is resonating at its fundamental ...

[cdr_15]

An open pipe of length L is resonating at its fundamental frequency. Which statement is correct?
 
  A) The wavelength is 2L and there is a displacement node at the pipe's midpoint.
  B) The wavelength is 2L and there is a displacement antinode at the pipe's midpoint.
  C) The wavelength is L and there is a displacement node at the pipe's midpoint.
  D) The wavelength is L and there is a displacement antinode at the pipe's midpoint.
  E) The wavelength is 3L/2 and there are two displacement antinodes located inside the pipe.

Question 2

Under which of the following conditions would a car have a westward acceleration?
 
  A) As a car travels eastward with its velocity is increasing.
  B) A a car travels eastward with its velocity is decreasing.
  C) As a car travels westward with its velocity is decreasing.
  D) As a car travels westward with its velocity is constant.
  E) As a car travels eastward with its velocity is constant.

[Harbringer]

Answer to Question 1

A

Answer to Question 2

B

[cdr_15]

Thanks for the timely response, appreciate it

[xiazhe]

Excellent