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Author Question: Which is the most common type of spacecraft propulsion used today? A) solar sails B) nuclear ... (Read 62 times)

Bob-Dole

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on: Jul 27, 2018
Which is the most common type of spacecraft propulsion used today?
 
  A) solar sails
  B) nuclear rockets
  C) ion engines
  D) chemical rockets

Question 2

A planet speeds up in its orbit as it gets closer to the sun because of
 
  A) the torque exerted on the planet by the sun.
  B) conservation of energy.
  C) conservation of momentum.
  D) conservation of angular momentum.
  E) inertia.


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dajones82

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

D

Answer to Question 2

D


Bob-Dole

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Reply 2 on: Jul 27, 2018
Gracias!

mochi09

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Reply 3 on: Yesterday
:D TYSM

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