Multiple Choice
Hydrogen "burning" in stars is ___________.
A) an atomic reaction that fuses 4 protons to make a helium nucleus, releasing energy by converting mass to energy
B) an atomic reaction that generates hydrogen by splitting helium atoms
C) hydrogen atoms that combine with deuterium atoms to make HD complexes, and this reaction generates immense amounts of energy
D) a chemical reaction that bonds hydrogen to oxygen to make water, which remains a gas because of the extremely high temperatures
Correct Answer:
Verified
Correct Answer:
Verified
Q6: Visible light emitted from the celestial bodies
Q7: How do modern telescopes prevent problems of
Q8: Shorter wavelengths correspond to _energetic photons.<br>A) moderate<br>B)
Q9: When several radio telescopes are connected together,
Q10: The first telescopes, and most amateur telescopes,
Q12: The first scientist to use a telescope
Q13: What does Einstein's formula e = mc<sup>2
Q14: Streams of protons and electrons emitted from
Q15: Astronomers currently estimate sunspots to be about_
Q16: To improve the resolution of radio telescopes,