Ask questions and get helpful responses.
Ask a New Question
  1. Questions

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?

Would this count as an open pipe still, or a closed pipe?

This is what I did.

Wavelength = 2L/n
Wavelength = 2(3)/1
Wavelength = 6

(331 + (.6*20)) = f(6)
f = 57.17 Hz

Is this correct?

  1. 👍
  2. 👎
  3. 👁
  4. ℹ️
  5. 🚩
Dan

  1. closed at one end, open at the other. the length of the pipe is .25 lambda.

    so,lambda has to be 12 m.

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
    👤
    bobpursley

  2. Sorry, but your answer is incorrect. Since the pipe is 3.00 m long and open at one end, the first resonance will occur with a wavelength four times the length of the pipe, or 12 m. Use 343 m/s for the speed of sound at 20°C.

    Velocity = Wavelength x Frequency
    Frequency = Velocity / Wavelength
    (331 + .6*20) = 343
    Frequency = 343/12 = 28.58 ~ 29 Hertz

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
    Collin

  4. That is the right answer

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
    Anonymous

Respond to this Question

First Name

Your Response

Similar Questions

  1. maths

    When a cake is removed from an oven its temperature is measured at 300 degree F. Three minutes later its temperature is 200 degree F. How long will it take to cool off to a room temperature of 70 degree F?

  2. PHYSICS

    A copper vat is 10 m long at room temperature (20 degrees C). How much longer it is when it contains boiling water at 1 atm pressure? Air in a balloon does 50 J of work while absorbing 70 J of heat. What is its change in internal

  3. physics

    A thick, vertical iron pipe has an inner diameter of 0.070 m. A thin aluminum (α = 23x10-6 (C°)-1) disk, heated to a temperature of 89°C, has a diameter that is 4.4x10-5 m greater than the pipe's inner diameter. The disk is

  4. Mathematics

    A cylindrical pipe 28m long. Its internal radius is 3.5cm and external radius is 5cm. Calculate the volume in cm of metal used in making the pipe (2) the volume of water in metres that the pipe can hold.

  1. Physics

    Water flows under pressure from one pipe into a second pipe having half the diameter. The volume flow rate in the narrow pipe is ________ that in the wide pipe, and the speed of the water in the narrow pipe is _______ that in the

  2. maths

    To fill a swimming pool two pipes are to be used.If the pipe of larger diameter I'd used for 4 hours and the pipe of smaller diameter for 9 hours only half the pool can be filled .Find ,how long it would take for each pipe to fill

  3. Fluid Mechanics

    Water flows into a cylindrical tank through pipe 1 at a rate of 25 ft/s and leaves through pipe 2 at 10 ft/s and through pipe 3 at 12 ft/s. Pipe 4 is an open air vent. Internal diameters of the pipes are: D1=3 in, D2= 2 in, D3=2.5

  4. MATHS

    Pipe A can fill a swimming pool in 10 hours.Pipe B can fill the same pool in 8 hours. If pipe A and pibe B work together for the first 2 hours and then pipe B stops working, how long will it take pipe A to finish the job?

  1. Math

    A painter needs 3 days to paint the walls of a room. How long would it take him, working at the same rate, to paint a room that is twice as long, twice as wide, and twice as high as the original room?

  2. Geometry

    Joel is laying pipe for a sprinkler system before he plants his lawn.The lawn is a rectangle 15 feet long and 8 ft wide. He needs to lay a piece if pipe that will run diagonal along the lawn. It will divide the area of the lawn

  3. math

    One pipe fills a storage pool in 20 hours. A second pipe fills the same pool in 15 hours. when a third pipe is added and all three are used to fill the pool , it takes only 6 hours. Find how long it takes the third pipe todo the

  4. Algebra 2

    URGENT HELP PLEASE the temperature of a room during an experiment can be modeled by the function f(x)=23.7 cos (Pi x /60) +18. Where f(x) is the temperature F degrees and x is the number is hours into the experiment. What is the

Still need help? You can ask a new question.