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Author Question: Compared with a solid steel bar having a rectangular cross-section, an I-beam has the advantage of ... (Read 161 times)

a0266361136

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on: Jul 29, 2018
Compared with a solid steel bar having a rectangular cross-section, an I-beam has the advantage of
 
  A) being lighter.
  B) being stronger per bodyweight.
  C) both of these
  D) neither of these

Question 2

There are about as many atoms of air in our lungs at any moment as there are breaths of air in the atmosphere of
 
  A) a large auditorium.
  B) a large city.
  C) the United States.
  D) the whole world.
  E) none of the above


vboyd24

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

Props to you, cheers.

Answer to Question 2

Answer: D


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a0266361136

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Reply #2 on: Jul 29, 2018
Both answers were spot on, thank you once again


vboyd24

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Reply #3 on: Jul 29, 2018
Great! Please up vote :D


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