FIND THE RATIO OF SPEED OF SOUND IN HYDROGEN TO THE SPEED OF SOUNDIN OXYGEN AT 1270 K.PLEASE EXPLAIN EVERY STEP VERY CLEARLY.
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Imagine yourself in a Ministry of Sound club (London, UK). Youare dancing very close to a loudspeaker, so that a sound at thethreshold of pain (120-dB) strikes your eardrum (its area is5â 10^-5 m^2). Assume density of air is 1.2 kg/m3 and speed of soundin air is 340 m/s. Find the displacement amplitude (in millimeters)of air molecules oscillating close to your eardrum when DJ plays aDrumâNâBass track with a lot of bass (frequency of its main soundwave, f = 200 Hz). Is it a large amplitude? Can it hurt your ear?Hint 1: convert sound intensity in dB into sound intensity inW/m^2. Hint 2: use relationship between intensity of sound wave andmaximum air molecule's displacement from its equilibrium(oscillation amplitude), s_max (a.k.a. A). mm
12) A shower stall measures 88.0cm X 88.0 cm X 215 cm. If you weresinging in the shower, whichfrequencies will sound the richest(because of resonance). Assumethat the stall acts as a pipe closedat both ends, with nodes atopposite sides, and that the voices ofvarious singers range from130 Hz to 2000 Hz. Let the speed of soundin the hot shower stallbe 355 m/s.Hz (lowest frequency across shorterdistance)Hz (second lowest frequency across shorterdistance)Hz (highest frequency across shorterdistance)Hz (lowest frequency across longerdistance)Hz (second lowest frequency across longerdistance)Hz (highest frequency across longerdistance)
A 500-Hz sound travels through pure oxygen. The wavelength of the sound is measured to the 0.65 m. What is the speed of sound in oxygen?