An astronaut at rest has a heart rate of 68 beats/min.What will her heart rate be as measured by an Earth observer when the astronaut's spaceship goes by the Earth at a speed of 0.76c?
A)105 beats/min
B)52 beats/min
C)33 beats/min
D)139 beats/min
E)44 beats/min

Question

An astronaut at rest has a heart rate of 68 beats/min.What will her heart rate be as measured by an Earth observer when the astronaut's spaceship goes by the Earth at a speed of 0.76c?
A)105 beats/min
B)52 beats/min
C)33 beats/min
D)139 beats/min
E)​44 beats/min

Quizplus · Accepted Answer

The Answer of An astronaut at rest has a heart rate of 68 beats/min.What will her heart rate be as measured by an Earth observer when the astronaut's spaceship goes by the Earth at a speed of 0.76c?
A)105 beats/min
B)52 beats/min
C)33 beats/min
D)139 beats/min
E)​44 beats/min

An Astronaut at Rest Has a Heart Rate of 68