How far from the speaker should you stand

Assignment Help Physics
Reference no: EM13261407

You are at a rock concert and find that when you stand 15 m from a speaker, the intensity is so high that it hurts your ears. You decide to move away from the stage so that your ears are more comfortable. If you want to reduce the intensity at your ears by a factor of four, how far from the speaker should you stand? Assume the sound emitted by a speaker at a rock concert has a spherical wave front.

Reference no: EM13261407

Questions Cloud

How far above the planets surface are they orbiting : Astronauts put their spaceship into orbit about a planet. How far above the planet's surface are they orbiting
What is the relationship in terms of the slope of the sml : The relationship between risk and expected return is typically described as linear (e.g. the Security Market Line or SML). What is the relationship in terms of the slope of the SML? Why is this important?
Explain the reaction of trans-p-anisalacetophenone : Illustrate this by showing the reaction of trans-p-anisalacetophenone with bromine and 2,4-dinitrophenylhydrazine to give the corresponding products
Find the expression for critically damped voltage response : The initial voltage across the capacitor is 5V and the initial current through the inductor is 100 mA. A switch is thrown at t=0 such that the circuit is connected in parallel with a 50 mA independent current source.
How far from the speaker should you stand : You are at a rock concert and find that when you stand 15 m from a speaker, the intensity is so high that it hurts your ears. how far from the speaker should you stand
Explain what is the wavelength of the corresponding light : THe energy of a photon is 4.54 10-19 J. What is the wavelength of the corresponding light
Find the ohmic value of the synchronous reactance : A three-phase ,600MVA,13.8KV Ac generator has a synchronous reactance of 2.0 per unit. The generator is connected to a system for which specified base fare 100MVA and 345KV.
Explain how can the molarity of chloride ion be calculated : How can the molarity of chloride ion be calculated when 16 mL (2 mL intervals) of 12 M HCL is added to 5 mL of 0.4 M CO(NO3)2?
What is the second order maximum angle : Helium-Neon laser: "Lambda"= 632.8nm. We can observe the first order maximum at "theta"= 25 degrees. What is the second order maximum angle

Reviews

Write a Review

Physics Questions & Answers

  Find the resonant frequency of this rlc circuit

A series RLC circuit is shown in the figure. The circuit is powered by an AC source. The peak emf of the AC source is 110 volt, What is the resonant frequency of this RLC circuit (in the unit of Hertz

  What is the magnitude of the total electrostatic energy

The electric motor of a model train accelerates the train from rest to 0.580 m/s in 33.0 ms. the total mass of the train is 563 g. Find out the average power delivered to the train during its acceleration. The units need to W for the final answer.

  Determine the minimun coeffiecient of static friction

A 50.0 kg box is resting on a horizontal floor. A force of 250 N directed at an angle of 26.0 degrees below the horizontal is applied to the box. What is the minimun coeffiecient of static friction

  Find the direction of the net force on the positive charge

Two positive charges, one of magntude Q and the other of magnitude 2Q, and one negative charge of magnitude -Q are placed on a straight line, Find both the magnitude and direction of the net force on the positive charge on the left

  What is her velocity relative to the surface of ice

A satellite is in a low circular orbit about the Earth (such as it just skims the surface of the Earth). How long does it take to make one revolution around Earth.

  What polarity of charge should the rod possess

Assume the balloon and rod to be point charges. The Coulomb force constant is 1/(4? ?0) = 8.99 × 10^9 N·m2/C2 and the acceleration due to gravity g = 9.81 m/s2.

  Find out the x and y coordinate

The box is open at the top and has edge length L = 66 cm. Find out (a) the x coordinate, (b) the y coordinate, and (c) the z coordinate of the center of mass of the box.

  Find the minimum uncertainty in the ducks speed

Suppose Fuzzy, a quantum-mechanical duck, lives in a world in which h = 2?J · s. Fuzzy has a mass of 2.25 kg, What is the minimum uncertainty in the duck's speed

  How various excess electrons does it have

One mole of an ideal gas does 1408 J of work on the surroundings as it expands isother- mally to a final pressure of 1.6 atm and vol- ume of 29L. Find out the initial volume.

  What is the overall average acceleration

A person driving her car at 57km/h approaches an intersection just as the traffic light turns yellow. She knows that yellow light lasts only 2.0 s before turning to red, and she is 30m away from the near side of the intersection.

  What range of speeds can a car safely make the curve

A female gymnast weighs 620 N. If she is hanging stationary from a high bar, how many forces are acting on her.

  What are underwater angles of refraction

W hat are underwater angles of refraction

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