A 0.25-m string, vibrating in its sixth harmonic, excites a 0.96-m pipe that is open at both ends into its second overtone resonance. The speed of sound in air is 345 m/s. The common resonant frequency of the string and the pipe is closest to
A) 540 Hz.
B) 360 Hz.
C) 450 Hz.
D) 630 Hz.
E) 700 Hz.
A
You might also like to view...
What is the heat needed to heat 150 g of water from
to 
(specific heat of water = 4186 J/kg
A. 37.2 kJ B. 44.6 kJ C. 56.5 kJ D. 68.2 kJ E. 75.1 kJ
On the basis of the scientific method, which of the following would be considered conclusive evidence that we are being visited by aliens?
A) an eyewitness account B) none of these would be conclusive C) claims of alien abduction made under hypnosis D) a photograph
A child pulls on a wagon with a force of 75N. If the wagon moves a total of in what is the average power delivered by the child?
A) 17 W B) 21 W C) 22 W D) 26 W
Magnetic Field of a Long Wire: A long, straight, horizontal wire carries current toward the east. An electron moves toward the east alongside and just south of the wire. What is the direction of the magnetic force on the electron?
A. toward the north B. toward the south C. upward D. downward E. toward the west