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Author Question: Which of the following describes a major danger of interstellar travel at near-light speed? A) ... (Read 136 times)

bobthebuilder

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on: Jul 27, 2018
Which of the following describes a major danger of interstellar travel at near-light speed?
 
  A) Atoms and ions in interstellar space will hit a fast-moving spacecraft like a flood of dangerous cosmic rays.
  B) Time dilation will slow the heart beats of the crew to a dangerously low rate.
  C) Asteroid fields floating in interstellar space will present a navigational challenge.
  D) Any interstellar journey will take much longer than the lives of the crew members.

Question 2

Imagine a planet like Earth orbiting the Sun, at an average distance of 1 AU but with a highly eccentric orbit. Which of the following statements about this orbit is not true?
 
  A) The period is longer than a year.
  B) The seasons are very extreme.
  C) The planet is sometimes very close to the Sun, and sometimes very far.
  D) The planet does not maintain a constant speed around the Sun.


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ktidd

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Reply #1 on: Jul 27, 2018
Answer to Question 1

A

Answer to Question 2

A


bobthebuilder

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Reply 2 on: Jul 27, 2018
Excellent

lcapri7

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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