A guitar player, riding on a bus moving at 25 m/s, wishes to tune his guitar to a stationary source on the side of the road. If the source has

a frequency of 440 Hz how many Hz would the guitar string (of length 0.6 m), be off, if tuned while the bus was moving, once the bus stops? Assume the speed of sound is 340 m/s. 440 Hz 472 Hz 32 Hz 410 Hz 70 Hz