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Author Question: An object in free fall has a. a constant speed. b. a constant velocity. c. a velocity that ... (Read 1198 times)

Garrulous

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on: Jul 28, 2018
An object in free fall has
 a. a constant speed.
  b. a constant velocity.
  c. a velocity that changes 9.8 m/s each second.
  d. an acceleration that depends on its mass.

Question 2

When the equation Al + O2 Al2O3 is balanced, the coefficient of Al2O3 is
 a. 1
  b. 2
  c. 3
  d. 4


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britb2u

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Reply #1 on: Jul 28, 2018
Answer to Question 1

c

Answer to Question 2

b


Garrulous

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Reply 2 on: Jul 28, 2018
Gracias!

peter

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Reply 3 on: Yesterday
Wow, this really help

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