Question

which situations might cause two observers (A and B) to measure different frequencies for the same vibrating object? select the two correct answers

a. observer A and observer B are both stationary and at the same distance from the object
b. observer A is stationary and observer B is moving
c. observer A and observer B are stationary but at different distances from the vibrating object
d. observer A and observer B are moving at different speeds relative to each other

Answer 1

[AI-generated answer — Bot GPT 3.5]

b. observer A is stationary and observer B is moving

d. observer A and observer B are moving at different speeds relative to each other