A starship voyages to a distant planet 10 ly away.The explorers stay 4.0 yr, return at the samespeed, and arrive back on earth 26 yr after theyleft. Assume that the time needed to accelerate anddecelerate is negligible.Part AWhat is the speed of the starship?Express your answer using two significant figures.= 0.91SubmitPrevious AnswersPart BCorrectHow much time has elapsed on the astronauts' chronometers?Express your answer using two significant figures.ΜΕ ΑΣΦt = 52.4?Submit Previous Answers Request Answer× Incorrect; Try Again; 5 attempts remainingProvide FeedbackyearsNext >

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Answered: A starship voyages to a distant planet…

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter1: Getting Started

Section: Chapter Questions

Problem 16PQ

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(a) Use the distance and velocity data in Figure 3.64 to find the rate of expansion as a function of distance. (b) If you extrapolate back in time, how long ago would all of the galaxies have been at approximately the same position? The two parts of this problem give you some idea of how the Hubble constant for universal expansion and the time back to the Big Bang are determined, respectively. Figure 3.64 Five galaxies on a straight line, showing their distances and velocities relative to the Milky Way (MW) Galaxy. The distances are in millions of light years (Mly), where a light year is the distance light travels in one year. The velocities are nearly proportional to the distances. The sizes of the galaxies are greatly exaggerated; an average galaxy is about 0.1 MlY across.
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▾ Part A A starship voyages to a distant planet 10 ly away. The explorers stay 4.0 yr, return at the same speed, and arrive back on earth 26 yr after they left. Assume that the time needed to accelerate and decelerate is negligible. What is the speed of the starship? Express your answer using two significant figures. ΜΕ ΑΣΦ 20 Submit Request Answer Part B ? How much time has elapsed on the astronauts' chronometers? Express your answer using two significant figures. ΕΠΙ ΑΣΦ VAΣ ? t = Submit Request Answer years
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A starship voyages to a distant planet 10 ly away. The explorers stay 1 yr, return at the same speed, and arrive back on earth 26 yr after they left. Assume that the time needed to accelerate and decelerate is negligible.a. What is the speed of the starship?b. How much time has elapsed on the astronauts’ chronometers?
A spaceship travels at a constant speed from earth to a planet orbiting another star. When the spacecraft arrives, 14 years have elapsed on earth, and 9.9 years have elapsed on board the ship. How far away (in meters) is the planet, according to observers on earth? Number i fé Earth time wes 2 2. <7443 Ship time T T 5₂₁ 2745 to Spaceship departs earth Units Earth time 3 go Ship time J.. A 12 245 Spaceship arrives at distant planet
a clock on a space rocket ticks off at a time interval of1hour. what is the time elapse on earth if the rocket is travelling at aspeed ofi). 1650km/hr ? and ii). 0.9c ? [c =3.0 x10 8m/s]
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