All categories

3 years ago

Which of the following is not a fluid?

Physics

2 answers:

Alinara [238K]3 years ago

4 0

The choices are confusing. Air, oil, and alcohol are fluids at any reasonable temperature. Dry cement is not.

Amanda [17]3 years ago

4 0

Answer:

Dry cement

Explanation:

Matter can be in three different states: solids, liquids or gases. Liquids or gases are also called 'fluids'. The main difference between solids and fluids is:

- in solids, the molecules are bond together, and so they cannot move freely inside the substance, but they can only vibrate around their position. For this reason, solids have a well-defined shape and they occupy a well-defined volume.

- in fluids, the molecules are NOT bond together, and so they are free to move. For this reason, fluids do not have a well defined shape or volume, but they tend to occupy the volume of their conteiner.

Among the choices given, we see that air, oil and alcohol respect the conditions listed for fluids, so they are fluids; on the contrary, dry cement respects the conditions listed for solids, so it is a solid.

You might be interested in

What is the angle of refraction when a ray of light passes frm ethanol to air

77julia77 [94]

Answer: Your answer is 1.36.

Hope this helps!

5 0

2 years ago

The velocity of an object is the distance it travels per unit time. Suppose the velocity of a gilding bird is measured to be 52.

Elanso [62]

Answer:

$d=7.115s$

Explanation:

What problem says can be written mathematically as:

$v=\frac{d}{t}$

Where:

$v=Velocity\\t=Time\\d=Distance$

The problem itself it's really simple, we only need to replace the data provided in the previous equation, but first, let's convert the units of the velocity from cm/s to m/s because we have to work with the same units and working in meters is the most apropiate action, because is the base unit of length in the International System of Units:

$52\frac{cm}{s} *\frac{1m}{100cm} =0.52\frac{m}{s}$

Now, we can replace the data in the equation and find the time it will take the bird to travel 3.7 m:

$0.52=\frac{3.7}{t}$

Solving for t, multiplying by t both sides, and dividing by 0.52 both sides:

$t=\frac{3.7}{0.52} =7.115384615s\approx7.115s$

5 0

3 years ago

PLEASE HELP ASAP! THANKS! Why is it a rare occasion to see a solar eclipse from your home?

Y_Kistochka [10]

Answer:

It is very rare to see a solar eclipse from your home, because the Earth, Sun, and the moon need to align just right. Not everyone in the world can view a solar eclipse, only some area can. A solar eclipse is where the moon blocks out the sun. If you think about it: Let's say you live in Florida, U.S.A. You may see the moon coming in front of the sun, but if you lived in California or sumthin', the moon and the sun wouldn't be aligned to form a solar eclipse. It all depends on location... so it is rare to see one.

5 0

3 years ago

What is Bernoulli's principle???

maks197457 [2]

The Bernoulli's principle is the principle in hydrodynamics that an increase in the velocity of a stream of fluid results in a decrease in pressure.

7 0

3 years ago

What is the magnitude of the average velocity of the hummingbird between 2 sec and t 4 sec

Arte-miy333 [17]

Between magnitude of the average 4sec

4 0

3 years ago