Show dat F = f(V + Vo/V -Vs).if both source & observer ar moving toward each other.?

Question

physiics,under waves.

Answer 1

This is the Doppler Effect, a perceived shift in the frequency of a wave due to the relative motion of the source and the observer.

A lower frequency means there is a shift away from the observer, and a higher frequency means the shift is toward the observer.

The original equation is:

f' = f(v ± Vo / v -+ Vs)

Assuming v = 340 m/s you can just plug in numbers.

Let's say f = 250, Vo = 70 and Vs = 60

If both the source and observer are moving toward each other:

f' = 250(340+70 / 340-60) = 366.1 hz

If both the source and observer are moving away from each other:

f' = 250[(340-70) / (340+60)] = 168.75 hz

So because when you used f' = f(V + Vo/V - Vs) you got a higher frequency than if you used f' = f(V - Vo/V + Vs), that means the source and observer are moving toward each other in the equation f' = f(V + Vo/V - Vs).

Answer 2

How would this affect hockey?