This topic contains a solution. Click here to go to the answer

Author Question: Which of the following describes a major danger of interstellar travel at near-light speed? A) ... (Read 85 times)

bobthebuilder

  • Hero Member
  • *****
  • Posts: 567
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.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ktidd

  • Sr. Member
  • ****
  • Posts: 319
Answer to Question 1

A

Answer to Question 2

A




bobthebuilder

  • Member
  • Posts: 567
Reply 2 on: Jul 27, 2018
Excellent


meow1234

  • Member
  • Posts: 333
Reply 3 on: Yesterday
:D TYSM

 

Did you know?

Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.

Did you know?

In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

Did you know?

The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.

Did you know?

A headache when you wake up in the morning is indicative of sinusitis. Other symptoms of sinusitis can include fever, weakness, tiredness, a cough that may be more severe at night, and a runny nose or nasal congestion.

Did you know?

There are more nerve cells in one human brain than there are stars in the Milky Way.

For a complete list of videos, visit our video library