A continuous sinusoidal longitudinal wave is sent along a very long coiled spring from an attached oscillating source. The wave travels in the negative direction of an x axis; the source frequency is 25 Hz; at any instant the distance between successive points of maximum expansion in the spring is 24 cm; the maximum longitudinal displacement of a spring particle is 0.30 cm; and the particle at x = 0 has zero displacement at time t = 0. If the wave is written in the form s(x, t) = sm cos(kx +-vt), what are (a) sm, (b) k, (c) v, (d) the wave speed, and (e) the correct choice of sign in front of v?
Properties of sound
A sound wave is a mechanical wave (or mechanical vibration) that transit through media such as gas (air), liquid (water), and solid (wood).
Quality Of Sound
A sound or a sound wave is defined as the energy produced due to the vibrations of particles in a medium. When any medium produces a disturbance or vibrations, it causes a movement in the air particles which produces sound waves. Molecules in the air vibrate about a certain average position and create compressions and rarefactions. This is called pitch which is defined as the frequency of sound. The frequency is defined as the number of oscillations in pressure per second.
Categories of Sound Wave
People perceive sound in different ways, like a medico student takes sound as vibration produced by objects reaching the human eardrum. A physicist perceives sound as vibration produced by an object, which produces disturbances in nearby air molecules that travel further. Both of them describe it as vibration generated by an object, the difference is one talks about how it is received and other deals with how it travels and propagates across various mediums.
A continuous sinusoidal longitudinal wave is sent along a very
long coiled spring from an attached oscillating source. The wave
travels in the negative direction of an x axis; the source frequency
is 25 Hz; at any instant the distance between successive points of
maximum expansion in the spring is 24 cm; the maximum longitudinal
displacement of a spring particle is 0.30 cm; and the particle
at x = 0 has zero displacement at time t = 0. If the wave is written
in the form s(x, t) = sm cos(kx +-vt), what are (a) sm, (b) k, (c) v,
(d) the wave speed, and (e) the correct
choice of sign in front of v?
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