Una ambulancia se desplaza hacia el norte a 23,5 m/s. Su sirena emite un sonido de 500Hz de frecuencia. Calcular la frecuencia a
parente que percibe un observador que viaja en su auto, también hacia el norte , a 28,6, cuando:
1 answer:
Answer:
(I attach your complete question in the picture below)
The apparent frequency would be
f' = 493.26 Hz
Step-by-step explanation:
This a Doppler's effect problem. This effects produces a slight change in the frequency of a traveling wave, due to the effect of the velocity of the receiver (observer).
The formula used to describe the change, as both vehicles are moving away of each other:
f' = [ (Vwave + Vobserver) / (Vwave + Vsource ) ]*f
Where
Vwave = 340 m/s ( speed of sound)
Vobserver = 18.6 m/s (observer = car)
Vsource = 23.5 m/s (speed of the ambulance = source)
f = 500 Hz (frequency of the sound)
We just need to substitute in the equation
f' = [(340+ 18.6) / (340+ 23.5)] * 500 Hz
f' = [0.9865] * 500 Hz = 493.26 Hz
f' = 493.26 Hz
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Answer: a) Dimensions of miniature is 0.17 × 0.08 × 0.5, b) 0.006 ft³.
Step-by-step explanation:
Since we have given that
Height of building = 1250 feet
Length of building = 424 ft
Width of building = 187 ft
Now, we know that The miniature version is just 1/ 2500 of the size of the original.
So, Height of miniature would be
Length of miniature would be
Width of miniature would be
a) What are the dimensions of the miniature Empire State Building?
Dimensions of miniature is 0.17 × 0.08 × 0.5
b. Determine the volume of the miniature building. Explain how you determined the volume.
Hence, a) Dimensions of miniature is 0.17 × 0.08 × 0.5, b) 0.006 ft³.