21ST CENTURY ASTRONOMY >CUSTOM<
21ST CENTURY ASTRONOMY >CUSTOM<
6th Edition
ISBN: 9781324027836
Author: Kay
Publisher: NORTON
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Chapter 18, Problem 44QP

(a)

To determine

The distance of the ship reaches to the star according to the clock on the Earth.

(b)

To determine

When the person on the ship likely to return back to the Earth from the planet.

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In 2030, the Australian Space Agency launches a spaceship to our nearest neighbour Alpha Centauri (4 lightyears away). How long will the journey take according to a clock on the spaceship if it travels at v=0.999c-299482km/s (where 'c' is the speed of light equal to 299782km/s). About 6 years. Just over 2 months. About 2 years. About 4 years.
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It is year 2120 and we have figure out a propulsion system that allows spaceships travel at velocities as high as v = 0.87c. A first expedition to Alpha Centauri (the nearest planetary system) is being planned. Alpha Centauri is 4.3 ly away. Answer the following 5 questions below asking you about the details of this expedition. Question 10 Assuming a constant velocity of v=0.87c, how long would the trip to Alpha Centauri take as observed by the ground control team here on Earth? Give your answer in years
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