SHM, sound, superposition, beats and Doppler effect (used for radial-velocity problems).
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Q1 · Oscillations and Waves · HARD
A string fixed at both ends vibrates in its third harmonic mode with a frequency of 360 Hz. If the string has a linear mass density of 2 g/m and length 0.75 m, what is the tension in the string?
Q2 · Oscillations and Waves · MEDIUM
A wave is described by the equation y = 0.04 sin(200πt - 4πx) where all quantities are in SI units. The wavelength and frequency of the wave are respectively: