Post a New Question

Physics

posted by .

If the seventh and fourth standing wave frequencies of a string differ by 144 Hz, what is the fundamental frequency of the string?

  • Physics -

    the fourth standing wave frequency is 4*f1, where f1 is the fundamental wave frequency. The seventy fundamental frequency is 7*f1

    7*f1 - 4*f1 = 3*f1 = 144 hz

    f1 = 144/3

  • Physics -

    This is not correct. The answer is simply as follows:

    Let f* be the fundamental frequency.

    Then f*[(1/4)-(1/7)]=144Hz.

    f* = 1344 Hz

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Simple Physics

    Decide whether each of the following statements are T-True, or F-False. (If the first is T and the rest are F, enter TFFFF) A) If you decrease the tension in a string, the frequency of its fundamental vibration will get lower B) If …
  2. PHYSICS

    Decide whether each of the following statements are T-True, or F-False. A) If you increase the tension in a string, the frequency of its fundamental vibration will get lower B) If the fundamental vibration of a string has wavelength …
  3. physics

    I have to figure out if the following are true or false in order to solve an equation. But I am getting at least two wrong so I can't get the next one right. A)If you increase the tension in a string, the frequency of its fundamental …
  4. Physics

    Waves of all wavelengths travel at the same speed v on a given string. Traveling wave velocity and wavelength are related by v=lambda*f,where v is the wave speed, lambda is the wavelength (in meters), and f is the frequency [in hertz]. …
  5. Physics- PLEASE HELP

    A 60.00 cm guitar string under a tension of 46.000 N has a mass per unit length of 0.11000 g/ cm. (a) What is the speed of the wave?
  6. Physics- PLEASE HELP

    A 60.00 cm guitar string under a tension of 46.000 N has a mass per unit length of 0.11000 g/ cm. (a) What is the speed of the wave?
  7. Physics- Someone Please Help!!!

    A 60.00 cm guitar string under a tension of 46.000 N has a mass per unit length of 0.11000 g/ cm. (a) What is the speed of the wave?
  8. Physics- Elena please help!

    A 60.00 cm guitar string under a tension of 46.000 N has a mass per unit length of 0.11000 g/ cm. (a) What is the speed of the wave?
  9. Physics

    If the seventh and fourth standing wave frequencies of a string differ by 144 Hz, what is the fundamental frequency of the string?
  10. Physics

    Suppose you have a string that is being made to vibrate at a specific frequency, f. The speed of waves on the string is v. The length of the string that is vibrating, L, is adjustable. When the length of the string has been adjusted …

More Similar Questions

Post a New Question