Determine the speed of the approaching fire engine

Reference no: EM13658876

Standing on the sidewalk next to your parked vehicle you hear the siren of an approaching fire engine. The transmittal frequency of the approaching fire engine is 1200 Hz but you hear a frequency of1363 Hz. It is a very hot day with the air temperature at100F.

1. Evaluate the velocity of sound in air?

2. Determine the speed of the approaching fire engine? in km/h

Reference no: EM13658876

Questions Cloud

Explain the interference you hear standing near the pole : A speaker is mounted on a vertical pole at the similar height as your ear. A second speaker is mounted on the same pole, 3.0 meter above the first speaker. Explain the interference you hear standing near the pole

Calculate the net force acting on the heart : A heart ejects 5.0L per minute of blood into the aorta. The average blood speed in the aorta is 22cm/s. The density of the blood is 1.06g/cm^3. Calculate the net force acting on the heart

Neglect the bulbs reduce in resistance with lowered voltage : How much power does a 60w/120V incandescent light bulb dissipate when operated at a voltage of 115V? Neglect the bulb's reduce in resistance with lowered voltage.

Calculate what is the pressure of the water : A horizontal pipe contains water at a pressure of 120 kPa flowing with a speed of 1.5m/s. The pipe narrows to one-half its original diameter, Calculate what is the pressure of the water

Determine the speed of the approaching fire engine : Standing on the sidewalk next to your parked vehicle you hear the siren of an approaching fire engine. Determine the speed of the approaching fire engine

Compute how much time does this maneuver take : A gymnast is performing a floor routine. In a tumbling run he spins through the air, Determine how much time does this maneuver take

Calculate the change in kinetic energy during this motion : A particle moves from Xi = 0 to Xf = 5.0 meter while being acted upon by a single force F = 3X^2 directed along the X axis. Calculate the change in the kinetic energy during this motion

Find the difference between the angular speeds of the wheels : The differential gear of an automobile axle allows the wheel on the left side of an automobile to rotate at a different angular speed than the wheel on the right side. Find the difference between the angular speeds of the wheels

Compute the frequency and the wavelength of sound you hear : The siren on a police van is emitting a sound whose frequency is 2493 Hz. The speed of sound is 343 m/s. Compute the frequency and the wavelength of the sound you hear

User Account

All Pages