Speaker as a point source and take the speed of sound

Reference no: EM13561699

A speaker with acoustic power 80 mW produces a steady tone. Consider the speaker as a point source and take the speed of sound to be 340 m/s.

(a) At what distance will the sound level of the tone be 80 dB?

(b) What is the peak pressure deviation at the location where the sound level is 80 dB?

Reference no: EM13561699

Questions Cloud

Calculate the pilots final displacement : City A is 150. miles from City B. City C is 300. miles from City B. A pilot flew a plane directly from City A to City B. While making the trip, the plane’s compass indicated a heading of 130.° and its air speed indicator indicated a speed of 60.0 ..

Determine flux through each face of cube and total flux : A positive point charge is at the centre (sorry! I'm in Canada!) of a cube. How do I determine the flux through each face of the cube and the total flux?

Calculate the bodys acceleration : A body moves in a straight line with the square of its velocity being a linear function of displacement, s as follows: v2=A+Bs, where A=4m2/s2 and B=0.4m/s2. Calculate the body’s acceleration, a and the distance traveled for the last 2sec before it r..

A highway curves to the left with radius of curvature : A highway curves to the left with radius of curvature of 44 m and is banked at 29degrees so that cars can take this curve at higher speeds. Consider a car of mass 1387 kg whose tires have a static friction coefficient 0.68 against the pavement.

Speaker as a point source and take the speed of sound : A speaker with acoustic power 80 mW produces a steady tone. Consider the speaker as a point source and take the speed of sound to be 340 m/s.

Car passes the truck traveling in the same direction : A car traveling at 40 m/s and a truck traveling at 10 m/s are on the same road. The car blows its horn with frequency 500 Hz. Find the change in the frequency of the horn as heard by the truck if the car passes the truck traveling in the same direc..

Find the angular frequencies of the component waves : A string with length L = 0.80 m and linear density µ = 2.5 g/m is under tension F = 4.0 N. The string is fixed at each end and when driven at the frequency of the n = 3 harmonic, a standing wave with amplitude A = 0.50 cm is produced.

Bowling-billiard ball may each be treated as uniform spheres : A bowling ball (mass = 7.2 kg, radius = 0.15 m) and a billiard ball (mass = 0.33 kg, radius = 0.028 m) may each be treated as uniform spheres. What is the magnitude of the maximum gravitational force that each can exert on the other?

The tub of a washer goes into its spin cycle : The tub of a washer goes into its spin cycle, starting from rest and gaining an angular speed of 5.00 rev/s smoothly in 10.0 s. At this point the person doing the laundry opens the lid, and a safety switch turns off the washer. The tub slows smoothly..

User Account

All Pages