User Account

All Pages

ACOUSTICS, Physics

Assignment Help:
* Question 1 :
Sound A has intensity 10 times the threshold if hearing : sound B has intensity 100 times the threshold of haring . How much louder do we perceive sound B ?

* Question 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) Estimate the differences in time between sound reaching the ears from this source .
B) Calculate the sound intensity at the right ear compared to at the left ear .

* Question 3 :
During 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 through which the sound passes is 2.1× 10-3 m2 , what is the total amount of sound energy entering her ear each workday ?

* Question 4 : ( Decibel scale – Calculation )
A) In dB , what is the differences between two intensities differing by factor of two , using the lower intensity as the reference ?
dB=10 log??10 ? (I2/I1) = 10 ?log?_10?× ((2×I_2)/I_1 )
B) A noise is measured at 2×10-3 W/m2 . What is this in Db ?
dB=10 log??10 ? (I2/I1) = 10 ?log?_10? ×((2×?10?^(-3) )/?10?^(-12) )

Related Discussions:- ACOUSTICS

Sound and light waves, Difference among sound and light waves: (i) For p...

Difference among sound and light waves: (i) For propagation of sound rays material phase is required but no material medium is needed for light waves. (ii)Sound rays are long

Wave theory of light, what is ether medium

what is ether medium

Friction, why is friction necessary

why is friction necessary

Determine the phase angle between voltage and current, A coil havingof a re...

A coil havingof a resistance of 100 and an inductance of 200mH. If an alternating voltage, v, givenby v=200sin500t volts is applied across the coil, measure (a) The circuit

Magnetism, Magnetism: Everyone has seen and handled a magnet in the f...

Magnetism: Everyone has seen and handled a magnet in the form of a straight or horseshoe-shaped bar of steel or steel-alloy. The magnet was originally a piece of steel befor

Explain power supply voltage, A diode in a circuit similar to the one in Fi...

A diode in a circuit similar to the one in Figure 29-26 has a voltage drop, V d , of  0.95 V when I = 18 mA. If a 390 Ω resistor, R, is connected in series, what power supply volta

Define zener breakdown, Why population inversion is essential to achieve in...

Why population inversion is essential to achieve in lasing action? a) Define zener breakdown. b) What is called nanomaterials?

Electromagnetic induction, I want a project on this topic..

I want a project on this topic..

Can you explain about sharpness of resonance, Can you explain about sharpne...

Can you explain about sharpness of resonance?

Thermodynamic , Given the following thermodynamic information, develop the ...

Given the following thermodynamic information, develop the Ag-CN-H 2 O Eh-pH diagram for a solution containing 1 × 10 -3 M [Ag] and 5 × 10 -3 M [CN] at 25 o C. Please show all wo

Write Your Message!

Captcha
Order Assignment

Featured Services

Order Now

Popular Subjects

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!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +91-977-207-8620

Phone: +91-977-207-8620

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

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