What is the intensity of the signal

Assignment Help Physics

Reference no: EM13244091

A loudspeaker on a homecoming float - mounted on a pole -- is stuck playing at an annoying 210 Hz tone. When the speaker is 10 m away you measure the sound to be a loud 95 dB at 208 Hz.

a. How fast and in what direction is the float moving? What is the physical reason for the change in frequency and what is the phenomenon called?

b. What is the intensity of the signal at this point? What is the power of the speaker?

c. What is the intensity of the sound from the speaker when the loudness is 55 dB? How far is the float from you at this point?

d. How long does the float take to reach the second point?

Reference no: EM13244091

Questions Cloud

How much energy is lost : A 0.12kg rubber ball is dropped from a height of 1.0m above the floor and it bounces back to a height of 0.80m, How much energy is lost

What is approximate period of oscillation of typical atom : Atoms in a solid are in continuous vibrational motion due to thermal energy, What is the approximate period of oscillation of a typical atom

Is demand for the product elastic or inelastic in short run : Select two companies whose product(s) you use in your daily life. You may choose anyfirms you wish, as long as their information is publicly available(as to their products and financial information) and they are knownto the average person.

Find e-y-barand findvar-y-bar : Suppose thatY1,Y2,Y3 is a sample of observations fromN(μ, s2) population but that Y1, Y2& Y3are not independent. In factsuppose: Cov(Y1Y2)=cov(Y2Y3)= cov(Y1Y3)=0.5s2 Let Y(y-bar)= (Y1+Y2+ Y3)/3

What is the intensity of the signal : A loudspeaker on a homecoming float - mounted on a pole -- is stuck playing at an annoying 210 Hz tone, What is the intensity of the signal at this point, What is the power of the speaker

Define most preferred to least preferred type of shock : Suppose that the economy is currently at potential output.Also suppose that you are an economic policy maker and that acollege economics student asks you to rank, if possible, your most preferred to least preferred type of shock:

What would be the effect of a 500 increase in taxes once : Suppose that the economy starts at equilibrium and the mpc = 0.8. What would be the effect of a 500 increase intaxes once all the rounds of the multiplier process are complete

By how much has national income-y changed : Assume the government cuts its purchases by $150billion. As a result, the budget deficit is reduced by $40 billion,private domestic saving decreases by $10 billion, disposablepersonal income decreases by $80 billion

What is the cars speed at the bottom of the dip : The passengers in a roller coaster car feel 50% heavier than their true weight as the car goes through a dip with a 28 m radius of curvature, What is the car's speed at the bottom of the dip

User Account

All Pages