Author Question: When a moving spaceship emits regularly-spaced flashes of light, how frequently you see the flashes ... (Read 96 times)

AEWBW · **on:** Jul 29, 2018

When a moving spaceship emits regularly-spaced flashes of light, how frequently you see the flashes depends on the ship

A) approaching you.
B) receding from you.
C) either of these
D) none of these

Question 2

Suppose you and your sister travel at different speeds in space and you note a slowing of her clock. Compared with her clock your sister will notice that your clock runs

A) faster.
B) slower.
C) the same.
D) need more information