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Author Question: A plane, flying horizontally, releases a bomb, which explodes before hitting the ground. Neglecting ... (Read 60 times)

colton

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on: Jul 27, 2018
A plane, flying horizontally, releases a bomb, which explodes before hitting the ground. Neglecting air resistance, the center of mass of the bomb fragments, just after the explosion
 
  A) moves vertically.
  B) moves horizontally.
  C) is zero.
  D) moves along a parabolic path.
  E) remains in the plane.

Question 2

Since the Helium molecule (He) is 2 times as massive as the Hydrogen molecule (H2), the speed of sound in Hydrogen is ________ the speed in Helium.
 
  A) 1.41 times
  B) two times
  C) four times
  D) eight times
  E) 1/ times


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JYan

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

D

Answer to Question 2

A


colton

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Reply 2 on: Jul 27, 2018
Excellent

jomama

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Reply 3 on: Yesterday
:D TYSM

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