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Author Question: When an object is dropped from a tower, what is the effect of the air resistance as it falls? a. It ... (Read 170 times)

pepyto

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on: Jul 28, 2018
When an object is dropped from a tower, what is the effect of the air resistance as it falls?
 a. It does positive work.
  c. It increases the object's potential energy.
  b. It increases the object's kinetic energy.
  d. None of the above choices are valid.

Question 2

An adiabatic expansion refers to the fact that:
 a. no heat is transferred between a system and its surroundings.
  b. the pressure remains constant.
  c. the temperature remains constant.
  d. the volume remains constant.


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juliaf

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

D

Answer to Question 2

A


pepyto

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Reply 2 on: Jul 28, 2018
Excellent

raili21

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Reply 3 on: Yesterday
Wow, this really help

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