Question

The sound intensity at 45.0 m from a tornado siren is 0.20 W/m2. What is the...

The sound intensity at 45.0 m from a tornado siren is 0.20 W/m2. What is the intensity of the siren 250.0 m away? Provide your answer with four decimals.

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

As given in question

Distance

distance

intensity of sound at 45 m

As we know formula for intensity

where P is power emitted by siren.

-----------------------------------------------1

and similaraly

-----------------------------------------------2

Devide equation 1 by equation 2.

Thanks for asking.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
The sound intensity 41 m from a wailing tornado siren is 0.09 W/m2. (a) What is...
The sound intensity 41 m from a wailing tornado siren is 0.09 W/m2. (a) What is the intensity at 1020 m? µW/m2 (b) The weakest intensity likely to be heard over background noise is 1 µW/m2. Estimate the maximum distance at which the siren can be heard. km
What is the intensity (in W/m2) of a sound that is 7.00 dB higher than a...
What is the intensity (in W/m2) of a sound that is 7.00 dB higher than a 5.01 ✕ 10−9 W/m2 sound? What is the intensity (in W/m2) of a sound that has a level 3.00 dB lower than a 5.01 ✕ 10−9 W/m2 sound?
Chapter 17, Problem 095 The sound intensity is 0.0070 W/m2 at a distance of 13 m...
Chapter 17, Problem 095 The sound intensity is 0.0070 W/m2 at a distance of 13 m from an isotropic point source of sound. (a) What is the power of the source? (b) What is the sound intensity 6.3 m from the source? (c) What is the sound level 13 m from the source?
What is the intensity of a sound that would result in a sound intensity level of...
What is the intensity of a sound that would result in a sound intensity level of 45.5 dB? Give the answer in scientific E-notation.    A fixed warning siren produces a pitch (frequency) of 888 Hz. An observer drives directly away from the blaring warning siren at 55.0 mph. Use 343 m/s for the speed of sound in air. What frequency is heard by the observer?    If the speed of sound in air is found to be 352 m/s...
A sound wave of frequency 349 Hz has an intensity of 4.03 ?W/m2. What is the...
A sound wave of frequency 349 Hz has an intensity of 4.03 ?W/m2. What is the amplitude of the air oscillations caused by this wave? (Take the speed of sound to be 343 m/s, and the density of air to be 1.21 kg/m3.)
A person standing 1.25 m from a portable speaker hears its sound at an intensity of...
A person standing 1.25 m from a portable speaker hears its sound at an intensity of 7.90 ✕ 10−3 W/m2. HINT (a) Find the corresponding decibel level.   dB (b) Find the sound intensity (in W/m2) at a distance of 36.0 m, assuming the sound propagates as a spherical wave.   W/m2 (c) Find the decibel level at a distance of 36.0 m.
At a particular site, you notice that the sound intensity and the sound intensity level from...
At a particular site, you notice that the sound intensity and the sound intensity level from a source are respectively I1 and β1. You then ask the sound crew to increase the sound until the sound intensity level (in dB) doubles and the sound intensity (in W/m2) quadruples. Determine the sound intensity level of the initial sound at your site..
What is the intensity level of a sound with an intensity of 3.5 x 10-8 W/m2?...
What is the intensity level of a sound with an intensity of 3.5 x 10-8 W/m2? 35.4 dB 49.1 dB 45.4 dB 13.4 dB Two cellos are being played in a duet. At a certain point, one cello plays a note of frequency 196 Hz and the other plays a note of frequency 220 Hz. What is the period of the beat? 0.4 s 4 s 0.25 s 0.1 s
The sound from a siren is radiates isotropically in air at 20oC. Five meters from the...
The sound from a siren is radiates isotropically in air at 20oC. Five meters from the siren, the sound intensity level is 52 dB. At what distacne will the sound intensity level be 30 dB?
The light intensity a certain distance away from a spherically-symmetric light source is 1200 W/m2. What...
The light intensity a certain distance away from a spherically-symmetric light source is 1200 W/m2. What would be the new intensity (in W/m2) if the source power were tripled while the observation point is made to be five times farther from the source? A. 156 B. 975 C. 144 D. 245 E. None of these
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT