A wave moving along a rope has a wavelength of 1.5 m and a frequency
of 5.5 Hz. How fast is the wave
traveling along the rope?
A. 3.67 m/s
B.5.4 m/s
C.8.25 m/s
D.3.75 m/s

Two loudspeakers, 5.5 m apart and facing each other, play identical sounds of the same frequency. you stand halfway between them, where there is a maximum of sound intensity. moving from this point toward one of the speakers, you encounter a minimum of sound intensity when you have moved 0.33 m . assume the speed of sound is 340 m/s.part a) what is the frequency of the sound? part b) if the frequency is then increased while you remain 0.21 m from the center, what is the first frequency for which that location will be a maximum of sound intensity? express your answer to two significant figures and include the appropriate units.