Ask Question, Ask an Expert

+61-413 786 465

info@mywordsolution.com

Ask Physics Expert

Academics


Home >> Physics

The intensity of the sound wave from a jet airplane as it is taking off is 105 W/m2 at a distance of 3.2 m. What is the intensity of the sound wave that reaches the ears of a person standing at a distance of 120 m from the runway? Assume that the sound wave radiates from the airplane equally in all directions.

mW/m2

Physics, Academics

  • Category:- Physics
  • Reference No.:- M91084573

Have any Question?


Related Questions in Physics

Question a proton has been accelerated from rest through a

Question: A proton has been accelerated from rest through a potential difference of -1350 V. What is the proton's kinetic energy, in electron volts? What is the proton's kinetic energy, in joules? What is the proton's sp ...

Question a resistor with resistance r and a capacitor with

Question: A resistor with resistance R and a capacitor with capacitance C are connected in series to an AC voltage source. The time-dependent voltage across the capacitor is given by VC(t)=VC0 sin t.If R = 3k, C=100pF, V ...

Question a what is the potential difference vadnbspin

Question: a) What is the potential difference V ad  in thecircuit? b) What is the terminal voltage of the 4V battery? c) A battery with emf 10.3V and internal resistance .5ohm isinserted in the circuit d with its negativ ...

Question a projectile is launched at an angle of 30 degis

Question: A projectile is launched at an angle of 30 deg.Is there any point on the trajectory where V and A are parallel to each other? Is there any point where V and A are perpendicular to each other? The response must ...

Question a nylon rope used by mountaineers elongates 130 m

Question: A nylon rope used by mountaineers elongates 1.30 m under the weight of a 65.0-kg climber. If the rope is 45.0 m in length and 7.0 mm in diameter, what is Young's modulus for this material? The response must be ...

Question a parallel-plate air capacitor has a capacitance

Question: A parallel-plate air capacitor has a capacitance of 920 pF. The charge on each plate is 2.55 ?C What is the potential difference between the plates? If the charge is kept constant, what will be the potential di ...

Question which statements about potential energy are

Question: Which statements about potential energy are correct? Select all that apply. a) The potential energy of a pair of interacting charged objects increases as the distance between them increases. b) Potential energy ...

Question a soap bubble is essentially a thin film of water

Question: A soap bubble is essentially a thin film of water surrounded by air. The colors you see in soap bubbles are produced by interference. What visible wavelengths of light are strongly reflected from a 390 {\rm nm} ...

Question a real image is four times as far from a lens as

Question: A real image is four times as far from a lens as is theobject. What is the object distance, measured in focal lengths? ____from the lens The response must be typed, single spaced, must be in times new roman fon ...

Question a rescue plane wants to drop supplies to isolated

Question: A rescue plane wants to drop supplies to isolated mountain climbers on a rocky ridge 235m below. If the plane is traveling horizontally with a speed of 250 km/h (69.4 m/s), (a) how far in advance of the recipie ...

  • 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

Why might a bank avoid the use of interest rate swaps even

Why might a bank avoid the use of interest rate swaps, even when the institution is exposed to significant interest rate

Describe the difference between zero coupon bonds and

Describe the difference between zero coupon bonds and coupon bonds. Under what conditions will a coupon bond sell at a p

Compute the present value of an annuity of 880 per year

Compute the present value of an annuity of $ 880 per year for 16 years, given a discount rate of 6 percent per annum. As

Compute the present value of an 1150 payment made in ten

Compute the present value of an $1,150 payment made in ten years when the discount rate is 12 percent. (Do not round int

Compute the present value of an annuity of 699 per year

Compute the present value of an annuity of $ 699 per year for 19 years, given a discount rate of 6 percent per annum. As

Follow Us

© Copyright 2013-14 mywordsolution.com All rights reserved