John is listening to a horn. He knows the
frequency of the horn is 598.653 Hz when
both he and the horn are at rest.
If John hears the horn’s pitch at 631.653 Hz,
which of the following are possible?
A) Both can be moving and have the same
speed.
B) Both can be moving while having different
speeds.
C) John can be moving toward a stationary
horn.
D) The distance between John and the horn
is increasing with time.
E) Both can be moving in the same direction.
F) Both can be moving, but away from each
other.
1. B, C, E, F
2. A, C, D, E, F
3. B, C, D, E, F
4. A, B, C, F
5. A, B, C, E
6. A, B, C, D, E, F
7. A, C, D, F
8. A, B, C, D, E
9. A, B, C, D, F
10. A, B, C, E, F