Find how much sound energy is incident on the eardrum

Assignment Help Physics
Reference no: EM13647511

Hearing damage may occur when a person is exposed to a soundintensity level of 90.0 dB (relative to the threshold of humanhearing) for a period of 9.00 hours. An eardrum has an area of 1.72x 10-4 m2. How much sound energy is incident on the eardrum during this time?

Reference no: EM13647511

Questions Cloud

Explain the phase transition from grey tin : Reversible heating to make the phase transition from grey tin (solid, with density ρ = 5.57 g/cm^3) to white tin (solid, with density ρ = 7.31 g/cm^3) at constant pressure.
Magnitude of the acceleration of a rising hot-air balloon : What is the magnitude of the acceleration of a rising hot-air balloon if the ratio of the air density outside the balloon to that inside is 1.25? Neglect the mass of the balloon fabric, the basket and its contents.
Determine work done by gas on bullet as bullettravels : A 93.9 g bullet is fired from a rifle having a barrel 0.256 m long. Assuming the origin is placed where the bullet begins to move, theforce exerted on the bullet by the expanding gas is F=a+bx−cx2,where a2=18600N, b = 10800N/m, c = 26300 N/m2, wit..
Explain teflonis a polymer synthsised by polymerisation : Teflonis a polymer synthsised by polymerisation of tetrafluoroethylene (F2C=CF2). use atomic masses: C = 12, F = 19 and answers in whole units. How many monomeric units would there be in one molecule of Teflon with a molar mass of 40000 g.
Find how much sound energy is incident on the eardrum : Hearing damage may occur when a person is exposed to a soundintensity level of 90.0 dB (relative to the threshold of humanhearing) for a period of 9.00 hours
Find the work done in stretching the spring : The force required to stretch a Hooke’s-law spring variesfrom 0 N to 51.6 N as we stretch the spring by moving one end 5.88cm from its unstressed position.
Evaluate the number of moles of gas in the sample : A sample of nitrogen gas in a 4.6-L container at a temperature of 26°C exerts a pressure of 3.9 atm. Calculate the number of moles of gas in the sample.
What is zhangs overall purpose : what is Zhangs overall purpose- to explain/inform or persuade? Use specific examples from the text to support your assessment
Determine compression of spring x from equilibrium position : A 141 kg block is released at a 4.9 m height as shown. The track is frictionless except for a portion of length 7.3 m . The blocktravels down the track, hits a spring of force constant k = 1042N/m . The coefficient of kinetic fric- tion between su..

Reviews

Write a Review

Physics Questions & Answers

  Evaluate what was the angular acceleration of the flywheel

In 2009, Formula 1 race cars were allowed to use a regenerative braking system that allowed them to store energy from braking and reuse it. What was the angular acceleration of the flywheel

  Compute the speed of the wave pulse

A wave pulse travels down a slinky. The mass of the slinky is m = 0.85 kg and is initially stretched to a length L = 6.2 m. compute the speed of the wave pulse

  Explain the michelson-morley experiment

What speed would Michelson have computed for Earth's motion through the ether had the experiment seen a shift of one fringe

  What is the sleds final momentum

A sled at rest on a flat, nearly frictionless surface is suddenly pushed with a force of 40.2N. what is the sled's final momentum

  Determine the necessary value for l

The scale of a spring balance reading from 0 to 235rm {N} has a length of 15 rm{cm}. A fish hanging from the bottom of the spring oscillates vertically at a frequency of 2.7rm {Hz}. What is the mass of fish? In Kg.

  What is the index of refraction of the plastic

The critical angle for light traveling from a certain plastic into air is 38.0°. What is the index of refraction of the plastic

  Find the point between these two charges

A charge of +2.00 x 10^-9 C is placed at x = 0.0 m. A second charge of +4.00 x 10^-9 C is placed at x = 1.5 m.

  Now suppose that there is energy dissipation of 003 j per

a horizontal spring-mass system has low friction spring stiffness 185 nm and mass 0.3 kg. the system is released with

  Obtain the height of the hill

Starting from rest, a basketball rolls from the top of a hill to the bottom, reaching a translational speed of 5.85 m/s. Ignore frictional losses. What is the height of the hill

  Calculate the wavelength of the interfering waves

Two sinusoidal waves traveling in opposite directions interfere to produce a standing wave with the wave function y = (1.00) sin(0.800x) cos(300t), Determine the wavelength of the interfering waves

  How far are you able to hit the ball

On Earth, you are able to consistently hit a golf ball 156 meters when you use your Five-iron which launches the ball at a 23 degree angle with respect to the ground. how far are you able to hit the ball

  Determine the mass of liquid ammonia

determine the mass of liquid ammonia that boils away before thermal equilibrium. Assume an excessive amount of liquid ammonia is present and that the liquid ammonia does not react with the copper.

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