Pitch changes are heard when the doppler effect occurs should be the answer. I'm pretty sure.
Answer:
B) T = 2πr/v
Step-by-step explanation:
To solve the given equation for T, multiply it by T/v.

The answer is 240 please mark me as brainliest
Answer:
Step-by-step explanation:
400yd($2304/192yd)=$4800