Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Physics Expert

problem 1: Sound A has intensity 10 times the threshold if hearing and sound B has intensity 100 times the threshold of hearing. How much louder do we perceive sound B?

problem 2: The distance from a point source of sound to the left ear is 2.00 m and the distance to the right ear is 2.01 m.

A) Find out the differences in time between sounds reaching the ears from this source.
B) Compute the sound intensity at the right ear compared to at the left ear.

problem 3: Throughout a typical eight-hour workday, the average sound intensity arriving at Suzy's ear is 1.8× 10-5 W/m2. If the area of Suzy’s ear via which the sound passes is 2.1× 10-3 m2, what is the total amount of sound energy entering her ear each workday?

problem 4: (Decibel scale – computation)

A) In dB, what are the differences between two intensities differing by factor of two, by using the lower intensity as the reference?

2111_decibel scale_1.jpg

B) A noise is measured at 2×10-3 W/m2. Determine this in Db?

642_decibel scale_2.jpg

Physics, Academics

  • Category:- Physics
  • Reference No.:- M91997

Have any Question? 


Related Questions in Physics

The angular velocity of a 755 g wheel 150 cm in diameter is

The angular velocity of a 755 g wheel 15.0 cm in diameter is given by the equation ω(t) = (2.00 rad/s2) t + (1.00 rad/s4) t3. (a) Through how many radians does the wheel turn during the first 2.00 s of its motion? (b) Wh ...

Instructionsconstruct a 2-4 page paper that fully

Instructions Construct a 2-4 page paper that fully satisfies  these two areas :  Based upon your topic chosen in the first assignment (HIV/AIDS is my topic) or based upon an entirely new topic of your choice, describe tw ...

Urn a contains five balls one black two white one green and

Urn A contains five balls: one black, two white, one green and one pink; urn B contains five hundred balls: two hundred black, one hundred white, 50 yellow, 40 cyan, 30 sienna, 25 green, 25 silver, 20 gold, and 10 purple ...

A proton is travelling at a speed of 4 x 105 ms moves into

A proton is travelling at a speed of 4 x 105 m/s moves into a series of charged parallel plates as shown below. a) What is the impact speed on the third plate? b) Why can you not use high-school kinematics to get the ans ...

Four points are selected at random on the surface of a

Four points are selected at random on the surface of a sphere. What is the probability that all of them lie on a single hemisphere? How does this question relate to T(N, K)?

Let w be the amount of water in gallons in a bathtub at

Let W be the amount of water, in gallons, in a bathtub at time t, in minutes. (a) What are the meaning and units of dW/dt? (b) Suppose the bathtub is full of water at time t 0 , so that W(t 0 ) > 0. Subsequently, at time ...

What is the capacity of the axon of a spiking neuron viewed

What is the capacity of the axon of a spiking neuron, viewed as a communication channel, in bits per second? [See MacKay and McCulloch (1952) for an early publication on this topic.] Multiply by the number of axons in th ...

A block with mass m 66 kg is hung from a vertical spring

A block with mass m =6.6 kg is hung from a vertical spring. When the mass hangs in equilibrium, the spring stretches x = 0.27 m. While at this equilibrium position, the mass is then given an initial push downward at v = ...

In the early twentieth century women who had children out

In the early twentieth century women who had children out of wedlock were considered to be "feeble-minded" or to suffer from mental retardation and more likely to give birth to children who were also feeble-minded. Today ...

A piece of hot iron c 450 jkg degc of mass 0500 kg and

A piece of hot iron (c = 450 J/kg .°C) of mass 0.500 kg and temperature 120° C is dunked into 2.00 liters of water at room temperature (20.0° C) a. What is the final temperature of the mix? b. What is the amount of energ ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro