« previous next »

Author Question: Compared with a solid steel bar having a rectangular cross-section, an I-beam has the advantage of ... (Read 197 times)

a0266361136

  • Hero Member
  • *****
  • Posts: 538
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

  • Sr. Member
  • ****
  • Posts: 341
Reply #1 on: Jul 29, 2018
Answer to Question 1

Props to you, cheers.

Answer to Question 2

Answer: D


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

a0266361136

  • Hero Member
  • *****
  • Posts: 538
Reply #2 on: Jul 29, 2018
Both answers were spot on, thank you once again


vboyd24

  • Sr. Member
  • ****
  • Posts: 341
Reply #3 on: Jul 29, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.

Did you know?

Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).

Did you know?

The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.

Did you know?

Complications of influenza include: bacterial pneumonia, ear and sinus infections, dehydration, and worsening of chronic conditions such as asthma, congestive heart failure, or diabetes.

Did you know?

For pediatric patients, intravenous fluids are the most commonly cited products involved in medication errors that are reported to the USP.

Frontal Section of a Cat Brain Frontal Section of a Cat Brain
This 1900 photograph of steel factories at night in Duquesne, near Pittsburgh, was tinted by hand. S This 1900 photograph of steel factories at night in Duquesne, near Pittsburgh, was tinted by hand. S
Daniel Burnham’s Flatiron Building (1902) was one of the first to use steel girders to hold up the b Daniel Burnham’s Flatiron Building (1902) was one of the first to use steel girders to hold up the b
The arrangement of water molecules in (a) solid ice, and (b) liquid water. The arrangement of water molecules in (a) solid ice, and (b) liquid water.
Section through one turn of the cochlea Section through one turn of the cochlea
Morgan’s test-cross analysis of genetic linkage between autosomal genes Morgan’s test-cross analysis of genetic linkage between autosomal genes
Video: Cardiac Cycle (Part 2 of 4)

For a complete list of videos, visit our video library