x_0 = d_{rocket} = \gamma \beta c \Delta t = 2700c s
\Delta x = x_0 + 0.6 c \Delta t_2
\Delta t_2 = \frac{\Delta x + x_0}{0.6c}
This is my best idea, but I don't know what \Delta x is
EDIT: I know \Delta x, its \beta c t
Really? Thanks so much! I've been feeling really unsure about the class, mainly because we've yet to do any sort of problems until now, so I was getting worried. If you don't mind, can you look at my part C?
Homework Statement
A Rocket Moves away from the Earth at a speed of (3/5)c. When a clock on the rocket says that one hour has elapsed, the rocket sends a signal back to the earth.
(A). According to clocks on the earth, when was the signal sent?
(B). According tot eh Clocks on the earth, how...