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A siren on the top

A siren emits a sound of frequency 1200 kHz. With which frequency is it received by a car moving at a speed of 20 m/s.a) Away
1. 2 answers
2. asked by Rita
3. 770 views
Initially, you hear the siren at 90 dB. When the distance between you and the ambulance is a quarter of what it was initially,
1. 1 answer
2. asked by Nadya
3. 922 views
A marine siren consists of a cylinder 72 cm in length closed at one end.for sound through air at 336 m/s. find the lowest
1. 1 answer
2. asked by omar
3. 544 views
The Sound Off Siren Company tests every fifth siren for sound quality and every eighth siren for mechanical quality. The daily
1. 4 answers
2. asked by BLT
3. 795 views
Residents of Hawaii are warned of the approach of a tsunami by sirens mounted on the tops of towers. Suppose a siren produces a
1. 1 answer
2. asked by Mike
3. 1,878 views
Danny is measuring the loudness of a police siren. At t=2 seconds, the siren's loudness is at its maximum of 112 dB for the
1. 2 answers
2. asked by SC
3. 965 views
Read the sentence.The fire truck’s siren woke me. Which is the best way to revise this sentence using descriptive detail and
1. 1 answer
2. 93 views
The diagram shows the variation of air pressure from an alarm siren at particular instant. The speed of sound in the air is
1. 4 answers
2. asked by RITIKA
3. 1,447 views
You're in an auto traveling at 25.0m/s toward a pole mounted warning siren. If the siren's frequency is 365 Hz, what frequency
1. 1 answer
2. asked by jess
3. 1,225 views
at a distance of 3.8 m from a siren, the sound intensity is 3.6 x 10-2 W/m2. Assuming that the siren radiates sound uniformly in
1. 0 answers
2. asked by Joe
3. 1,045 views