18. Skipping Quarantine. Enrico was so annoyed with stay-at-home restrictions because of the pan demic, that in April 2020 he decided to strap himself on a spaceship moving at velocity ac, where c is th speed of light and 0 < a < 1, and wait just 2 months for 2 Earth years to elapse, and for life to return to normal. Find a.

18. Skipping Quarantine. Enrico was so annoyed with stay-at-home restrictions because of the pan demic, that in April 2020 he decided to strap himself on a spaceship moving at velocity ac, where c is th speed of light and 0 < a < 1, and wait just 2 months for 2 Earth years to elapse, and for life to return to normal. Find a.

Similar questions

1. Suppose a spaceship heading straight toward the Earth at 0.650c can shoot a canister at 0.400c relative to the ship. (a) What is the velocity of the canister relative to Earth, if it is shot directly at Earth? (b) If it is shot directly away from Earth?
24. A person in a spaceship passing Earth observes her own heart rate to be 75 beats / minute and her spaceship to be 60 m long. A person on Earth observes the spaceship person's heart rate to be 45 beats / minute and her spaceship to be long. A.36 m B. 48 m C. 60 m D. 75 m E. 100 m
1. Based on the problem below, if a crew member on the spaceship measures itslength to be 400 m, what is the length measured by an observer on earth? a. 34.2 mb. 44.1 mc. 56.4 md. 78.2 m 2. Based on the problem below, how far does the ship travel in relation to theearth during each pulse? a. 1.35 kmb. 4.21 kmc. 83.8 kmd. 94.5 km
28. A neutron lives 900 s when at rest relative to an observer. How fast is the neutron moving relative to an observer who measures its life span to be 2065 s?
I have tried 16.7x10^3, 16.7x10^4, and 1.365x10^8 and those are all wrong for the first part. I know that the second part is 14.3 hr. I need to know the km/s. Thank you!!