Explain how drinking through a straw illustrates fluid flowing from high-pressure to low-pressure

1 answer:

7 0

Drinking through a straw shows fluid flowing from high pressure to low pressure in 2 ways. The first is how it shows high pressure as you stuck on the straw. This increases the pressure and brings the fluid to your mouth. If this pressure is kept you can successfully pick up the straw filled with water and have none come out. This demonstrates low pressure when you stop ducking and the fluid falls back down the straw into your cup.

You might be interested in

Which of the following explains why water is a good solvent for polar and ionic compounds?

Anni [7]

Hi there!

Electronegativity is the concept of how likely an atom is to attract the shared molecules in one of these bonds to itself. We know the molecule water is made up of two hydrogens and one oxygen. The electronegativity of hydrogen is 2.2, and oxygen 3.4. An ionic bond needs at least a difference in electronegativity of 1.6. As the difference is less than that, we can say that water is a covalent molecule. This then wipes out choice B, because it is not ionic, and C, as we have seen it is actually covalent.

Now, we can see the difference in electronegativity between oxygen and hydrogen is still 1.2. This means that while it is not at the point for there to be an ionic bond, there is still a difference in attraction, where the electrons will tend to favor the oxygen more and 'hang around it' more. As electrons are negatively charged, this means that the oxygen will gain a slightly negative charge. This then makes the molecule polar, because it now has a charge within the molecule. This means we have our answer, choice D.

In terms of hydrophobic molecules - they tend to be ones without a charge. (If you're interested in this kind of stuff, I'd search hydrophobic up, and possibly also look into hydrogen bonds).

Hope this helps! Feel free to ask me any other questions you have about this specific problem.

6 0

3 years ago

Jason adds the antibiotic penicillin to a bacterial culture. The bacteria develop genetic modifications in their genome, which g

Aleks [24]

The correct answer is A.
The use of antibacterial drugs can cause modifications in the genetic material of the concerned bacteria. If the genetic material of the bacteria are modify, that means they have undergone mutation. Because the base sequence of the normal and that of the mutated gene is different, antibiotic will not be able to recognize the bacteria again and thus will not be able to attack it.

3 0

3 years ago

The environmental Protection Agency (EPA) has two programs that make a business an energy star. They are the following:

Sloan [31]

Answer: your awser is going to be A. Energy Star and Air Sense

4 0

2 years ago

Read 2 more answers

The cilia on this parecium are ised to propel the protozoan and also to

nikklg [1K]

Move food particles into the cell

5 0

3 years ago

Photosynthesis is an endergonic reaction. Why?

Art [367]

Photosynthesis is endergonic (needing energy) because in the process OF photosynthesis, these plants use sunlight and carbon dioxide and water to make glucose which is sugar. It's taking substances to make the energy it needs.

6 0

2 years ago

Read 2 more answers

Explain how drinking through a straw illustrates fluid flowing from high-pressure to low-pressure​

Explain how drinking through a straw illustrates fluid flowing from high-pressure to low-pressure