Answered: The solution for the decay of the… | bartleby

Related questions

Question

The solution for the decay of the steady state energy density in a diffuse field is
given by,
4W
ācs.
e(t) =
4V
J/m3
e
ācs
Develop the general expression for the time t required for the sound pressure
level to decay by X dB in terms of room surface area, volume, absorption
coefficient and speed of sound. Consider that diffuse field intensity is defined
in terms of,
e(t)C
I
Prms
4
4poC

Expert Solution

Step by step

Solved in 3 steps

SEE SOLUTION Check out a sample Q&A here

Blurred answer

Similar questions

In audio and communications systems, the gain, B, in deci- bels is defined for an amplifier as Pout B = 10log Pin where Pin is the power input to the system and Pout is the power output. (a) A particular amplifier puts out 135 W of power for an input of 1.0 mW. What is its gain in dB? (b) If a signal-to-noise ratio of 93 dB is specified, what is the noise power if the output signal is 10 W?
his problem on paper before attempting to program it in Octave.Begin with a cube of edge length, x > 20 in. The edge length of the cube shrinks at a rate of r < 0.5 in/s.  Ask the user to specify the original edge length (be sure to communicate that the number must be larger than 20 and units are in inches) Ask the user to choose a shrink rate (be sure to communicate units and range of acceptable values). Ask the user to specify the time elapsed (be sure to communicate units and range of acceptable values). Report back to the user what percent of the original volume remains. Report back to the user what percent of the original surface area remains
14.11 a) Find the cutoff frequency (in hertz) for the high- pass filter shown in Fig. P14.11. b) Find H(jw) at wc, 0.125wc, and 8wc. c) If v; = 75 cos wt V, write the steady-state expres- sion for vo when w wc, w = 0.125@c, and w = 8wc. Figure P14.11 Vi 80 uF HE ≥ 20 Ω - Vo
What`s frequency of 4th harmonic YAG:Nd3+ laser beam if it`s wavelength is 266.0 nm. Introduce answer in THz.
Intensity is a measure of incoming power per unit area. If I is the intensity of the incoming energy within an illuminated region of area, A, then the total received power is given by: P = JA where I depends on the power of the radiating source, how it spreads and how far away it is from the illuminated region. lashlight on a Wall Suppose that a flashlight beam spreads uniformly over a circular region as shown in the figure above. (a) If P bulb is the radiated power, and r is the radius of the circle, which expression gives the intensity, , within the illuminated region? Pbulb P bulb 4πr² (b) Which expression should you use to calculate the total incoming (received) power, Pin, over a square of side length, s, that is completely illuminated by the beam as shown in the above figure? Os²el O² O 4πr²e bulb 2ftr You shine the 13.5-cm radius circular beam of a 70-W flashlight on a square sticky-note with side length 8.1-cm that is tacked to a nearby wall as shown in the figure above. (c)…
(a) To appreciate the human ear’s twelve order of magnitude (10^12) span from barely audible to the pain threshold, consider the following. Suppose an equivalently dynamic instrument were designed to measure distances. Taking the lower limit of the instrument to be 1.00 mm, what would be the largest distance measurable? (b) To provide a perspective for the human ear’s frequency sensitivity range (audible frequency extremes differ by 10^3 ), consider a speedometer with a similar speed range. If the speedometer’s maximum speed reading is 90.0 mi/h, what is the smallest finite speed that it could register?
We will assume that a sound wave, once generated and emitted, will propagate uniformly in all directions of 3-dimensional space. Find an expression for the displacement s(r, t) of the air particles from equilibrium, where r is the radial distance from the source, and t is time. Introduce physical constants/coefficients, with appropriate physical dimensions, when necessary.
A long tube contains air pressure of 1 atm. and temp of 77degrees C. the tube is open at one end, and closed by a movable piston on the other end. A tunning fork is near the open end and is vibrating at a frequency of 500Hz. Reasonance is produced when the piston is set at 18, 55.5, and 93 cm. From these measurements what is the velocity of sound in air at 77degC. I'm getting 375m/s and I don't think it is right because I was a little confused on my process. I appreciate your help with this problem. Thank you.
Determine the frequency response [M(w) and (w)] for an instrument having a time constant of 10 ms. Estimate the instrument's usable frequency range to keep its dynamic error within 10%.