When the car approaches the ambulance. b. When the car pulls away from the ambulance.

Q: Some whales make a collection of repeating sounds with frequencies ranging from 20 Hz to 10 kHz.…

A: The frequency range given is 20 Hz to 10 kHz.  The speed of sound waves is given as  v = 1400 m/s.…

Q: A sea monster chases a submarine near the bottom of the North Atlantic Ocean. The submarine is…

A: The speed of the sea monster is 7.11 m/s No, submarine is not in trouble as the speed of submarine…

Q: a. What frequency (in Hz) is received by a person watching an oncoming ambulance moving at 118 km/h…

A: *The ambulance moving at a speed is vs = 118 km/h = 32.78 m/s *The emitting frequency is f0 = 600 Hz…

Q: An ambulance with a siren emitting a whine at 1490 Hz overtakes and passes a cyclist pedaling a bike…

A:

Q: A speedboat, starting from rest, moves along a straight line away from a dock. The boat has a…

A:

Q: Two trains approach each other, each train traveling at 31 m/s. The engineer on one train sounds his…

A:

Q: The sound level of a lamborghini's engine starting is 80.8dB. the noise level of the lamborghini…

A: Noise level of the Lamborghini driving = 120.1 dB Sound level of Lamborghini engine starting = 80.8…

Q: Two trains approach each other, each train traveling at 30 m/s.  The engineer on one train sounds…

A: Given: v1 = v2 = 30 m/s, f1 = 177 Hz, Vs = 340 m/s

Q: As you bike toward a loudspeaker, you hear a tone with a frequency of 518 Hz. Your friend who is…

A: The speed of sound is v=343 m/s.The frequencies are:

Q: A student standing in a canyon yells "echo" and her voice produces a sound wave of the frequency of…

A: given values; λ= wavelength of soundd= distance from wall to studentf=0.54 kHz=540 Hzt= 4.8 sv= 328…

Q: Please help me with the following question and make sure is 100% correct, thanks  Use I0=10−12W/m2…

A: The formula to calculate sound intensity level (SIL) in decibels (dB) is: SIL=10 logII0 where I is…

Q: The driver of a car traveling 27.0 m/s sounds his horn as he approaches an intersection. If the horn…

A:

Q: We consider two sound sources that oscillate in phase with a frequency of 108 Hz. At a point 6.27 m…

A: Given: f = 108Hzr1 =6.27mr2=7.43 mAo = 5.02*10-7 mv = 343 m/sρ=1.22 kg/m3

Q: A sound wave with a frequency of 50 Hz moves at a speed of around 350 m/s in air. It travels into a…

A:

Q: A train passes by a little boy at the depot.As it moves away from the boy at 65m/s, the whistle…

A:

Q: The driver of a car, who is approaching a siren at a speed of 90 km/h hears a sound with frequency…

A: Given Data : The speed of the car initially is given as vi=90 Kmh The frequency of the sound heard…

Q: Two loudspeakers emit 600 HzHz notes. One speaker sits on the ground. The other speaker is in the…

A:

Q: problem. 'emitted What frequency strikes the stalactite? stalactite= Hz The stalactite reflects what…

A:

Q: A sound wave in a solid has a frequency of 60.0 kHz and a wavelength of 0.333 m. What would be the…

A: Solution: Given that A sound wave in a solid has a frequency of 60.0 kHz and a wavelength of 0.333…

Q: The driver of a car traveling 24.0 m/s sounds his horn as he approaches an intersection. If the horn…

A:

Q: Two students hear the same sound and their eardrums receive the same power from the sound wave. The…

A: Given; Let there be two students A and B.  Both receives the same power from sound wave i.e. PA =…

Q: There was an accident and NASA engineers are trying to sort out where two of their Mars Rovers,…

A: Recall VαTSpeed of sound is proportional to square root of temperature.

Q: A truck is traveling 54 km/hour. You hear the truck horn frequency as being 1000 Hz. The actual…

A: Using Doppler effect formula,

Q: truck is moving at 33 m/s, and a car in front of the truck is moving in the same direction at 43…

A: Speed of source = vs = 33 m/s Speed of observer vo = 43 m/s Original frequency = 193 Hz

Q: Two trains approach each other, each train traveling at 26 m/s.  The engineer on one train sounds…

A: To determine: The frequency of passenger heard on the second train   Given: The speed of source,…

Q: An organ pipe that is 1.75 m long and open at both ends produces sound of frequency 303 Hz when…

A:

Q: While rolling down a hill, you produce a pitch of 387 Hz while honking on your horn. A stationary…

A: Given information: The frequency of the horn (f0) = 387 Hz The combined frequency heard (Δf) = 49 Hz…

Q: While standing next to the main entrance of the E-building a LaGuardia student notices an ambulance…

A:

Q: A train travelling at 20.92 m/s is receding from a stationary observer, and sounding a warning horn…

A:

Q: You and a friend are watching fireworks that are launching from Grant Park.You are standing right in…

A: The inverse square law for sound intensity states that the intensity of a sound wave decreases with…

Q: A sound wave in a solid has a frequency of 45.0 kHz and a wavelength of 0.333 m. What would be the…

A: Wave Speed = (frequency) x (wavelength)

Scalars and Vectors

Scalars and Vectors are the classification of physical quantities that are used to denote various terms in physics.