Question

A sound-producing object is moving away from an observer. The sound the observer hears will have a frequency that actually being produced by the object.
the same as

higher than

lower than

need ASAP!!!

Answer 1

Lower than, this is due to the doplar effect

Answer 2

Answer:

Lower than

Explanation:

According to Doppler’s effect, the observer will not hear the same frequency of sound if there is relative motion between the source and observer. When source is moving away from the observer the frequency perceived by the observer will be less than actual frequency as given by the following formula:

                                   f1 = (V/V+Vs)*f  

where,

f1 = frequency heard by the observer  

f = actual frequency  

V = velocity of sounds waves  

Vs = velocity of source