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Author Question: When you are in a high-flying jet plane, does either your weight or your mass differ from their ... (Read 27 times)

piesebel

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When you are in a high-flying jet plane, does either your weight or your mass differ from their normal value as measured on the ground?
 
  A) No, both your weight and your mass are exactly the same as on the ground.
  B) Both your weight and your mass are slightly reduced.
  C) Both your weight and your mass are slightly increased.
  D) Your weight is slightly reduced, but your mass is unchanged.
  E) Your weight is slightly increased, but your mass is unchanged.

Question 2

How do we know whether or not global warming is caused by humans?
 
  A) From computer calculations that predict 20th-century temperatures based on natural variations, then on human-caused variations, and then on a mix of natural and human variations; the actual historical measurements then show that only natural variations are important.
  B) From experiments in which excess carbon is injected into a laboratory-created Earth-like atmosphere, and the resulting temperature is measured.
  C) From experiments in which a small experimental plot of forest is subjected to excess carbon, and the growth of the trees along with the temperature are then measured.
  D) From computer calculations that predict 20th-century temperatures, based on natural variations, then on human-caused variations, and then on a mix of natural and human variations; the actual historical measurements then show the importance of human variations.
  E) Actually, scientists have been unable to determine this.



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quynhmickitran

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Answer to Question 1

D

Answer to Question 2

A




piesebel

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Reply 2 on: Jul 29, 2018
Thanks for the timely response, appreciate it


anyusername12131

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Reply 3 on: Yesterday
Wow, this really help

 

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