A rocket moving with 0.50c relative to earth. Jenny who is in the rocket measures her pulse rate at 75 beats per minutes. Signals generated by Jenny’s pulse are radioed to the earth when the rocket is

A rocket moving with 0.50c relative to earth. Jenny who is in the rocket measures her pulse rate at 75 beats per minutes. Signals generated by Jenny’s pulse are radioed to the earth when the rocket is moving perpendicular to the line that connects the rocket with an observer on the earth.

i). What pulse rate does the earth-based observer measure?

ii). What if? What would be the pulse rate if the speed of the rocket were increased to 0.99c?