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Author Question: How do the escape speeds for two rockets, the first weighing 20 N and the second weighing 20,000 N ... (Read 23 times)

roselinechinyere27m

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on: Jul 29, 2018
How do the escape speeds for two rockets, the first weighing 20 N and the second weighing 20,000 N compare?
 
  A) The escape speed for the lighter rocket is smaller than that for the heavier rocket.
  B) The escape speed for the lighter rocket is the same as that for the heavier rocket.
  C) The escape speed for the lighter rocket is greater than that for the heavier rocket.

Question 2

Two forces produce equal torques on a door about the door hinge. The first force is exerted at the midpoint of the door; the second force is applied at the doorknob. Both forces are exerted perpendicular to the door.
 
  Which force has a greater magnitude? A) the first force (at the midpoint)
  B) the second force (at the doorknob)
  C) The two forces are equal.


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jordangronback

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Reply #1 on: Jul 29, 2018
Answer to Question 1

B

Answer to Question 2

A


roselinechinyere27m

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Reply #2 on: Jul 29, 2018
Thanks


jordangronback

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Reply #3 on: Jul 29, 2018
Welcome :)


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