What frequency do you hear initially

Reference no: EM13648959

The siren of a police car atrest emits a predominant frequency of 1600 Hz and the police car isovertaking you from the rear, at a speed of 200 km/h. You areproceeding in the same direction at 50 km/h.

a. What frequency do you hear initially?

b. What frequency will you hear,when the police car passes you and continues on at 150 km/h afteryou have slowed to 25 km/h to insure you don't get in the way?

Reference no: EM13648959

Questions Cloud

What is the averagelate-night sound level in the room : An interstate highway has been built through a poor neighborhood ina city. What is the averagelate-night sound level in the room

Evaluate the buoyant force on the brick : A 22 kg brick is completely submerged insaltwater and displaces an amount of saltwater weighing 11.7 N. Determine the buoyant force on the brick

How much time elapses before the two cars collide : two cars, A&B are 400 meters apart. Car A travels due east at 30 meters per second on a collision course w/ car B, How much time elapses before the two cars collide

What is thewavelength behind the police car in meters : A police car is traveling east at 40.0 m/s along a straight road,overtaking a car ahead of it moving east at 30.0 m/s. What is thewavelength behind the police car in meters

What frequency do you hear initially : The siren of a police car atrest emits a predominant frequency of 1600 Hz and the police car isovertaking you from the rear, at a speed of 200 km/h. What frequency do you hear initially

What is the blocks temperature after it was raised : A 2kg concrete block, that has a temperature of 20 degreesCelsius, is dropped from a height of 100 meters. What is the block's temperature after it was raised

Find the possible frequencies produced by the guitar string : A tuning fork produces a steady400 Hz tone. When this tuning fork is struck and held near avibrating guitar string, find the possible frequencies produced by the guitar string

Estimate how long is the string in meters : The vibrations from an 720 Hz tuning fork set up standing waves in a string clamped at both ends. How long is the string in meters

What is the third audible harmonic : An organ pipe is 107 cm long. What is the third audible harmonic if the pipe is closed at one end? The speed ofsound in air is 343m/s

User Account

All Pages