Spaceship Julio Passes Spaceship Klara with a Relative Velocity of 0.8c.An

Multiple Choice

Spaceship Julio passes spaceship Klara with a relative velocity of 0.8c.An astronaut aboard Julio finds that her heart is beating once every 0.0133 min (75 beats/min) .The time between beats according to a sympathetic astronaut aboard Klara is

A) 0.00800 min
B) 0.0106 min
C) 0.0133 min
D) 0.0166 min
E) 0.0222 min