Answered: 20. The distance between two asteroids…

20. The distance between two asteroids is 1500 km, how long does it take a light signal to travel from one asteroid to the other?

Horizons: Exploring the Universe (MindTap Course List)

14th Edition

ISBN:9781305960961

Author:Michael A. Seeds, Dana Backman

Publisher:Michael A. Seeds, Dana Backman

Chapter18: The Outer Solar System

Section: Chapter Questions

Problem 4P: If you observe light reflected from Saturn’s rings, you should see a redshift at one edge of the...

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Question

Please help with the answer(question 20)

19. A laser beam takes 0.024s to travel from a rocket to the reflective surface of a planet and back to the
rocket. How far is the rocket from this planet's surface?
a) 2400 km
b) 1200 km
c) 1800 km
d) 3600 km
e) 4800 km
I
20. The distance between two asteroids is 1500 km, how long does it take a light signal to travel from one asteroid to
the other?
21. How fast would a vehicle have to be going for the driver to perceive a red light, with a wavelength of 700nm, to
appear green, with a wavelength of 550 nm? If the driver gets pulled over for running the red light, do they have an
argument? (Hint: convert the wavelengths to frequencies first)
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