Answer:
when an ambulance passes with its siren blaring, you hear the pitch of the siren. The siren's pitch sounds higher than when it is moving away from you.
So while the siren produces waves of constant frequency, as it approaches us
Explanation:
Answer:#1,#3,#2,#5,#7,#4,#6,#9,#10,and #8.
sorry I didn’t get it right ok
Answer: it would be the 2nd one
Explanation: hurry and see this because brainly keeps deleting my stuff
Answer:
I'm pretty sure short but not a hundred percent sure
