Determine the intensity of the sound in decibels

Assignment Help Physics

Reference no: EM13496932

The intensity 18m from a source of sound is measured to be 10^-4W/m^2.

A) Determine the intensity of the sound in decibels.

B) Calculate the total power emitted by the source.

Reference no: EM13496932

Questions Cloud

Prepare the journal entry to record depreciation expense : At the beginning of the year, a company bought three new machines for its production facilities. The machines were all different so each had to be recorded separately. Below are the costs related to each purchase.

Prepare the required journal entry to record disposal of van : Assume that a company sold a delivery van that had been used in the business for three years. Records of the company related to the van reflect the following.

What will the count rate be at that time : The radioactive isotope has a half-life of 2.60 y and has a half-life of 87.0 days . They each emit positive β- particles or positrons. what will the count rate be at that time

How to classifying assets into current assets : Prepare the asset section of the balance sheet for this company, classifying assets into Current Assets, Property, Plant and Equipment (net), and Other Assets.

Determine the intensity of the sound in decibels : The intensity 18m from a source of sound is measured to be 10^-4W/m^2. Determine the intensity of the sound in decibels

Compute the cost of each machine : Evaluate each method in terms of its effect on cash flows, fixed asset turnover, and earnings per share. Assuming that the company is most interested in maintaining a high EPS during year 1 and 2, which method would you recomme..

Generate a net cash flow over the remaining years : The equipment's utility to the company has declined because they expect it to generate a net cash flow over the remaining years of $200,000 from its operation. If the asset has been impaired, record the journal entry to recognize the loss.

Determine the sound power emitted by the source : The sound level, ß, measured at a radius r = 11.00 meters from a point sound source that is emitting sound equally in all directions is 95.17 dB, what is the sound power emitted by the source

What would the depreciation expense be under the units : If the machine was used to produce and sell 120,000 units in 2008, what would the depreciation expense be under the units of production method?

User Account

All Pages