6-3. Synchronized clocks A and B are at rest in our frame a distance 1 light-hour apart. Clock C passes A at speed (12/13)c bound for B, when both A and C read 1 = 0 in our frame. (a) What time does C read when it reaches B? (b) How far apart are A and B in C's frame? (c) In C's frame, when A passes C, what time does B read