At rest, a car's horn has a frequency of\

395Hz

. Car A passes car B on the street\ in the same direction. If car

A

is traveling\ at

22.0(m)/(s)

and

carB

is traveling\ at

19.5(m)/(s)

, what frequency does\ car

B

hear when car

A

honks?\ (Speed of sound

=343(m)/(s)

)\ (Unit

=Hz

)

At rest, a car's horn has a frequency of 395Hz. Car A passes car B on the street in the same direction. If car A is traveling at 22.0m/s and car B is traveling at 19.5m/s, what frequency does car B hear when car A honks? (Speed of sound =343m/s ) (Unit =Hz )