Displacement amplitude and pressure amplitude of the sound

Assignment Help Physics
Reference no: EM13549389

A certain loudspeaker system emits sound isotropically with a frequency of 2290 Hz and an intensity of 0.795 mW/m2 at a distance of 5.43 m. Assume that there are no reflections. (a) What is the intensity (in mW/m^2) at 29.5 m? At 5.43 m, what are (b) the displacement amplitude and (c) the pressure amplitude of the sound? Take the speed of sound to be 343 m/s and the density of air to be 1.21 kg/m3.

Reference no: EM13549389

Questions Cloud

Two atomic particles approach other in head-on collision : Two atomic particles approach each other in a head-on collision. Each particle has a mass of 1.81 x 10-25 kg. The speed of each particle is 2.13 x 108 m/s when measured by an observer standing in the laboratory.
Find the tension in the horizontal cable : As shown on the right, a uniform boom with a mass of 30.0 kg and a length of 2.00 meters is suspended at its left end by a low friction bearing and supported at its right end by a low mass horizontal steel wire of diameter 4.00 mm. A 20.0 kg mass ..
Final sound intensities and the initial and final sound : Suppose that the sound level of a conversation is initially at an angry 74 dB and then drops to a soothing 50 dB. Assuming that the frequency of the sound is 516 Hz, determine the (a) initial and (b) final sound intensities (in ?W/m2) and the (c) ..
Magnitude of torque exerted by magnetic field on loop : A current of 13.0 mA is maintained in a single circular loop of 3.20 m circumference. A magnetic field of 0.710 T is directed parallel to the plane of the loop. (a) Calculate the magnetic moment of the loop
Displacement amplitude and pressure amplitude of the sound : A certain loudspeaker system emits sound isotropically with a frequency of 2290 Hz and an intensity of 0.795 mW/m2 at a distance of 5.43 m. Assume that there are no reflections.
Thick insulating material of thermal conductivity : A large steam pipe is covered with 1.7-cm-thick insulating material of thermal conductivity 0.21 J/(s m °C). How much energy is lost every second when the steam is at 185 °C and the outside of the pipe has a temperature of 20°C? The pipe has a circum..
Find the maximum torque on the wire : A wire is formed into a circle having a diameter of 10.0 cm and placed in a uniform magnetic field of 2.50 mT. The wire carries a current of 5.00 A. Find the maximum torque on the wire.
A simple harmonic oscillator consists of a block of mass : A simple harmonic oscillator consists of a block of mass 4.10 kg attached to a spring of spring constant 195 N/m. When t = 2.00 s, the position and velocity of the block are x = +0.129 m and v = +3.415 m/s. (a) What is the amplitude of the oscilla..
What is the amplitude of the eardrums oscillation : Male Rana catesbeiana bullfrogs are known for their loud mating call. The call is emitted not by the frog's mouth but by its eardrums, which lie on the surface of the head. And, surprisingly, the sound has nothing to do with the frog's inflated th..

Reviews

Write a Review

Physics Questions & Answers

  What is the linear speed of the disk

Suppose a disk of radius R and mass M starts from rest at a height of 2.5m, What is the linear speed of the disk when it leaves the incline

  Calculate the average linear acceleration of a tire

A car starts from rest and then accelerates uniformly to a linear speed of 14 m/s in 38 s. If the tires have a radius of 28 cm, calculate the average linear acceleration of a tire

  At what rate is the energy being dissipated

A coil has an inductance of 0.45 H and a resistance of 42 ohms. The coil is connected to a 5.6 V ideal battery. At what rate is the energy being dissipated

  Calculate the resistivity of the leaf tissue

Resistivity measurements on the leaves of corn plants are a good way to assess stress and overall health. What is the resistivity of the leaf tissue

  Find te energy ejected into the kitchen

An ideal refrigerator maintains a temperature of 8c inside it, whereas in the kitchen the temperature is 25c. find te energy ejected into the kitchen

  Find out kingbird charitable contribution deduction

Kingbird Corporation made a contribution to a qualified charitable organization of $6,300 in cash (not comprised in any of the above items). Determine Kingbird's charitable contribution deduction for the current year.

  Find the magnitude of the net displacement of the mouse

A field mouse trying to escape a hawk runs east for 4.0 , darts southeast for 3.0 , then drops 0.50 down a hole into its burrow. What is the magnitude of the net displacement of the mouse

  How much work is done by gravity on the two block system

A mass m1 = 3.9 kg rests on a frictionless table and connected by a massless string over a massless pulley to another mass m2 = 5.7 kg which hangs freely from the string. How much work is done by gravity on the two block system

  What is magnitude of the force

What is magnitude of the force that a concrete support exerts on the bridge at each end. The cloth exerts a friction force of 0.100 N on the mug and the cloth is pulled with a constant acceleration of 3.00 m/s.

  Find his final speed at the top

A 70.0 kg skier with an initial speed of 13.0 m/s coasts up a 2.50 m high rise as shown in Figure 6.23. Find his final speed at the top

  Evaluate the mass of the star

In recent years, a number of nearby stars have been found to possess planets. Find the mass of the star

  Evaluate the rotational kinetic energy of the system

A person of mass 73kg stands at the center of a rotating merry-go-round platform of radius 3.5m and moment of inertia 950kg kg m^2. Calculate the rotational kinetic energy of the system of platform plus person after the person's walk

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd