Obtain the average power generated by the horn

Reference no: EM13679490

A train sounds its horn as it approaches an intersection. The horn can just be heard at a level of 52 dB by an observer 10 kilometer away.

(a) Obtain the average power generated by the horn?

_________W

(b) Find what intensity level of the horn's sound is observed by someone waiting at an intersection 42 meter from the train? Treat the horn as a point source and ignore any absorption of sound by the air.

_________dB

Reference no: EM13679490

Questions Cloud

The potential difference among the plates of a capacitor : The potential difference among the plates of a capacitor is 170 V. Midway between the plates; a proton and an electron are released. The electron is released from rest. The proton is projected perpendicularly toward the negative plate with an initial..

Find what wavelength is detected by a person : A commuter train passes a passenger platform at a constant speed of 39.9 m/s. The train horn is sounded at its characteristic frequency of 320 Hertz. Find what wavelength is detected by a person on the platform as the train approaches

The outstanding voting common stock of rubins corp : The outstanding voting common stock of Rubins Corp

Distinguish between craft unions and industrial unions : Distinguish between craft unions and industrial unions.

Obtain the average power generated by the horn : A train sounds its horn as it approaches an intersection. The horn can just be heard at a level of 52 dB by an observer 10 kilometer away. Obtain the average power generated by the horn

Compute the intensity level of the infrasound : There is evidence that elephants communicate via infrasound, generating rumbling vocalizations as low as 14 Hertz that can travel up to 10 kilometer. Compute the intensity level of the infrasound 10 kilometer from the source

Compute the decibel level on rodriguez island : One of the loudest sounds in recent history was that made by the explosion of Krakatoa on 26-27 August 1883. compute the decibel level on Rodriguez Island

Compute what the wavelength : A sound wave traveling in air at 73°C has a frequency of 776 Hertz. Compute what the wavelength

Obtain the separation in time between arrivals of two pulses : A hammer strikes one end of a thick iron rail of length 9.43 meter. Obtain the separation in time between arrivals of two pulses

User Account

All Pages