While attempting to tune the note C at 522Hz, a piano tuner hears 2.85 beats/s between a reference oscillator and the string. What are the possible frequencies of the string.

Two harmonic waves are described by Yı = A sin(3 x – 5t), Y2 = A sin(3 x – 5t – 4). A = 3.2 m, with x and t in SI units and the phase angle in radians. What is the displacement of the sum y1 +y2 of these two harmonic waves at x = 1 m and t = 1 s? Answer in units of m.

A school is setting up for the science department's annual "Night of Phantastic Physics Phun." One of the most popular demonstrations is the traveling wave pulse, in which participants pluck one end of a long, taut wire to send transverse wave pulses racing across the room. The goal is for the pulses to travel across the 19.5 m wire in a time of about 0.500 s. The mass of a 1 m long piece of the wire is known to be 0.435 kg. What should the tension in the wire be in order to achieve the desired wave speed? tension:

A transverse wave is traveling on a string. The displacement y of a particle from its equilibrium position is given by y = (0.021 m) sin (25t - 2.0x). Note that the phase angle 25t - 2.0x is in radians, t is in seconds, and x is in meters. The linear density of the string is 1.9 × 10-2 kg/m. What is the tension in the string? F= MO

A string consists of two parts attached at x=0. The right part of the string has mass per unit length 12.8 g/m and the left part has mass per unit length 3.2g/m. The string tension is T. If a wave of amplitude 3.5cm travels along the left part of the string, what is the amplitude of the wave that is transmitted to the right part of the string?

A physics professor demonstrates the Doppler effect by tying a 600 Hz sound generator to a 1.0-m-long rope and whirling it around her head in a horizontal circle at 1100 rpm. What are the highest and lowest frequencies heard by a student in the classroom?

A transverse wave is traveling on a string. The displacement y of a particle from its equilibrium position is given by y = (0.021 m) sin(25t - 2.0x). Note that the phase angle 25t - 2.0x is in radians, t is in seconds, and x is in meters. The linear density of the string is 1.4 × 10-2 kg/m. What is the tension in the string? F= i

A person putting up power lines is told to stretch the wire between poles to a tension of about 800N. The person doesn't have a tension scale so they decide to measure the speed of a pulse created on the wire when they hit it with a wrench. The pulse travels from one pole 60m to another pole and back again in 2.6 s. The 60m long wire has a mass of 15kg. Should the wire be tightened or loosened? Explain how you decided. Thanks!

The G string on a guitar is 54 cm long and has a fundamental frequency of 196 Hz. A guitarist can play different notes by pushing the string against various frets, which changes the string's length. The seventh fret from the neck gives D (293.66 Hz); the eighth fret gives E♭(311.13 Hz).  How far apart are the seventh and eighth frets?

It's Christmas time and you blast your Christmas music with the windows down in your car. Your grinchy roommate hears your music 30 meters away. The final note in the song is a B, playing at 493 Hz, but your roommate smiles because to him it sounds like a B-flat, playing at 440 Hz. How fast are you driving relative to your roommate? And in what direction?