Physics-Need Help fast!

posted by .

Part 1
A 3m long pipe is in a room where the temperature is 20 degrees C. What is the frequency of the first harmonic if the pipe is closed at one end?

Part 2
sound traveling in air at 23 degrees C enters a cold front where the air temp is 2 degrees C. If the sound frequency is 1500 Hz determine the wavelength in the colder air and in the warmer air, respectively.

Part 3
The speed of an ultrasonic sound of frequency 45KHz in air is 342 m/s what is the air temp?

  • Physics-Need Help fast! -

    You need to use the equation that relates sound speed in air to temperature.

    There are many sites to help you with this, such as
    http://www.sengpielaudio.com/calculator-speedsound.htm


    3. Ultrasonic sound has the same speed as sound we can hear. A sound speed of 342 m/s requires T = 19 C.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Physics - URGENT

    The seventh harmonic of a one end closed pipe organ has a frequency of 732 Hz, on a day when the temperature is 10 degrees Celsius. How long is the pipe?
  2. Physics

    A PVC pipe that is one meter long is struck and the speed of sound is 345 m/s. What is the fundamental frequency (n=1) of the pipe when: a. The pipe is open at both ends?
  3. Physics

    A PVC pipe that is one meter long is struck and the speed of sound is 345 m/s. What is the fundamental frequency (n=1) of the pipe when: a.The pipe is open at both ends?
  4. Physics-Resonance

    A 3.00 m long pipe is in a room where the temperature is 20 C. What is the fundamental frequency if the pipe is closed at one end?
  5. physics

    a pipe of length 1.00 m and open at both ends is lying on the ground at a construction site on a windy day of temperature 20 degrees C. Justin notices that the pipe is resonating and creating a sound of a particular frequency, the …
  6. Physics -- sound

    An organ pipe that is closed at one end has a fundamental frequency of 146 Hz. There is a leak in the church roof, and some water gets into the bottom of the pipe, as shown in the Figure. The organist then finds that this organ pipe …
  7. Physics

    The windpipe of a whooping crane is about 1.27 m long. Assuming that the pipe is closed at one end, what is the fundamental frequency of this pipe?
  8. Physics

    Organ pipe A, with both ends open, has a fundamental frequency of 225 Hz. The third harmonic of organ pipe B, with one end open, has the same frequency as the second harmonic of pipe A. How long are
  9. physics

    Consider a pipe with a length of 57.5 cm. If the temperature of the air is 21.5+B degrees C and the pipe is closed in one end and open in the other, what is the frequency of the third harmonic for the pipe?
  10. physics

    Consider a pipe with a length of 57.5 cm. If the temperature of the air is 21.5degrees C and the pipe is closed in one end and open in the other, what is the frequency of the third harmonic for the pipe?

More Similar Questions