What frequency does the motorcyclist hear

Assignment Help Physics
Reference no: EM13550531

A motorcycle and a police car are moving toward one another. The police car emits sound with a frequency of 514 Hz and has a speed of 30.0 m/s. The motorcycle has a speed of 13 m/s. What frequency does the motorcyclist hear?

Reference no: EM13550531

Questions Cloud

What tension is needed to tune this string properly : The lowest note on a grand piano has a frequency of 27.5 . The entire string is 2.00 long and has a mass of 430 . The vibrating section of the string is 1.88 long. Part A What tension is needed to tune this string properly?
What is the frequency of wave-amplitude of the wave : A sinusoidal wave travels along a stretched string. A particle on the string has a maximum velocity of 1.40 and a maximum acceleration of 250 . Part A What is the frequency of the wave? Part B What is the amplitude of the wave?
A pair of in-phase stereo speakers is placed side by side : A pair of in-phase stereo speakers is placed side by side, 0.61 m apart. You stand directly in front of one of the speakers, 0.8 m from the speaker. What is the lowest frequency that will produce constructive interference at your location?
Same direction as a second train on the adjacent track : A train on one track moves in the same direction as a second train on the adjacent track. The first train, which is ahead of the second train and moves with a speed of 30.4 m/s, blows a horn whose frequency is 124 Hz. If the frequency heard on the se..
What frequency does the motorcyclist hear : A motorcycle and a police car are moving toward one another. The police car emits sound with a frequency of 514 Hz and has a speed of 30.0 m/s. The motorcycle has a speed of 13 m/s. What frequency does the motorcyclist hear?
What is the intensity level of each violin : 32 violins playing simultaneously with the same intensity combine to give an intensity level of 82 dB. a) What is the intensity level of each violin? (b) If the number of violins is increased to 64, will the combined intensity level be more than, les..
What is the acceleration of the racecar : A racecar with a speed of 60 m/s is taking a curve with a radius of 10 m. What is the acceleration of the racecar? What is the centripetal force acting on the car (mass = 400 kg)?
A cork on the surface of a pond bobs up and down two times : A cork on the surface of a pond bobs up and down two times per second on ripples having a wavelength of 7.70 cm. If the cork is 13.5 m from shore, how long does it take a ripple passing the cork to reach the shore? _____s
What imperfection in operation of eye causes farsightedness : What imperfection in the operation of the eye causes farsightedness? What type of lens is used to correct this? What imperfection in the operation of the eye causes nearsightedness? What type of lens is used to correct this?

Reviews

Write a Review

Physics Questions & Answers

  What are the gauge and absolute pressures

Assume you are a scuba diver preparing for a 30m dive into sea water of density 1025 kg/m3, what are the gauge and absolute pressures in Pa you experience at a depth of 30 m in the sea

  What point between the two wires are the contributions

If the mass of both weights is 225 gm, the first mass is located 20 north of east, the second mass is placed 20 south of east, and the transducer sensitivity is 0.5 volts/Newton, how large a voltage do you expect to measure? suppose the transducer..

  What is the resistance of the rod

A 1.5 m cylinder of radius 1.1 cm is made of a complicated mixture materials. Its resistivity depends on the distance x from the left and obeys the formula p(x)=a+bx^2, What is the resistance of the rod

  Calculate her upward acceleration

An "extreme" pogo stick utilizes a spring whose uncompressed length is 34 cm and whose force constant is 1.2×104 N/m. Calculate her upward acceleration, in g's at that moment

  What is the direction of this velocity

What is the direction of this velocity. What is the magnitude of the velocity.

  What are ranges of the rms speeds of the molecules

The reflected sound is afterwards mixed with the transmitted sound, and 85 beats per second are detected. The speed of sound in body tissue is 1520m/s. compute the speed of the fetal heart wall at the instant this measurement is made.

  How fast is the proton travelling

At t = 0, a particle leaves the origin with a velocity of 9 m/s in the positive y direction and moves in xy plane with a constant acceleration of (-2 i -4 j) m/s2. At t = 1 s, what is the velocity of particle in the x direction.

  What is the radius of the cable

A cylindrical copper cable carries a current of 1290 A. There is a potential difference of 1.60 10-2 V, What is the radius of the cable

  Determine the weight of the object

An object is suspended on a frictionless inclined plane by a rope parallel to the incline, as illustrated above. what is the weight of the object

  What is the ratio of the final sound intensity

The volume control on a surround-sound amplifier is adjusted so the sound intensity level at the listening position increases from 21 to 59 dB. What is the ratio of the final sound intensity to the original sound intensity?

  What is the objects mass

In an experiment performed in a space station, a force of 38 N causes an object to have an acceleration equal to 5 m/s2. What is the object's mass

  Determine the net energy gain for this system

200 Btu are transported into a system via a work mode and 75 Btu are removed via heat transfer mode. Determine the net energy gain for this system

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd