A certain star is 12.5 light-years away Part A How long would it take a spacecra

Question

A certain star is 12.5 light-years away

Part A

How long would it take a spacecraft traveling 0.960c to reach that star from Earth, as measured by observers on Earth?

_____ years

Part B

How long would it take a spacecraft traveling 0.960c to reach that star from Earth, as measured by observers on the spacecraft?

_______ years

Part C

What is the distance traveled according to observers on the spacecraft?

_____ ly

Part D

What will the spacecraft occupants compute their speed to be from the results of parts B and C?

______ c

Explanation / Answer

a) 12.5/0.96=13 years.
b) time measured by the ob on the spacecraft.
T=13*sqrt(1-0,96^2)=3.64 years
c) it is 0.96*3.64=3.494 light years.
d) it is 0.96 c.

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.