Author Question: The shapes of planetary orbits are __________. Fill in the blank(s) with correct ... (Read 78 times)

sdfghj

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The shapes of planetary orbits are __________.
 Fill in the blank(s) with correct word

Question 2

What is an unusual theoretical characteristic of quarks?
 a. They have fractional charges.
  b. They are outside the concept of electric chargeit just does not apply to them.
  c. Even the electron is composed of quarks.
  d. Even in quantum mechanical terms, quark momentum is not conserved.
  e. They combine to form leptons.



annierak

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Answer to Question 1

ellipses

Answer to Question 2

a



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