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bector215 bector215
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Posts: 506
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6 years ago
Jupiter's Great Red Spot is similar to a hurricane on Earth except for its size.
 
  Indicate whether the statement is true or false

Question 2

Explain why in space, no one can hear you scream.
 
  What will be an ideal response?

Question 3

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 4

Which of the following methods has led to the most confirmed discoveries of massive planets orbiting near their parent stars?
 
  A) detecting a planet ejected from a binary star system
  B) detecting the starlight reflected off the planet
  C) detecting the infrared light emitted by the planet
  D) detecting the gravitational effect of an orbiting planet by looking for the Doppler shifts in the star's spectrum
  E) detecting the shift of the star's position against the sky due to the planet's gravitational pull

Question 5

What is the Big Bang theory?
 
  A) the idea that the universe as we see it formed when two massive galaxies collided together
  B) the idea that all matter and energy in the universe began in an unimaginably dense state, and then space itself began expanding
  C) the idea that the galaxy formed from the supernova explosion of a massive star

Question 6

As a solar mass protostar moves on to the main sequence,
 
  A) its surface temperature and luminosity remain the same.
  B) its surface temperature and luminosity decrease.
  C) its surface temperature and luminosity increase.
  D) its surface temperature decreases and its luminosity increases.
  E) its surface temperature increases and its luminosity decreases.
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ModorfielModorfiel
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6 years ago
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bector215 Author
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6 years ago
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6 years ago
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