3 years ago

Reposting the repost because it got deleted TvT

Physics

1 answer:

kakasveta [241]3 years ago

5 0

Answer:

Because water mixes with the dirt when it rains to make that mud when the mud is left in the sun, the sun <em>Evaporates</em><em> </em>that water, and eventualy it will turn into sand.

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May someone please help?

IceJOKER [234]

Air is cooled and

becomes denser.

Denser air sinks.

The process repeats, producing a (i wasn't sure about this one)

Air is heated and becomes less dense.

Less dense air rises.

hope this helps!

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3 years ago

Studies show that the amount of heat stored in the ocean is increasing. What effect might this have?

g100num [7]

This warming will have an effect on the bicarbonate buffer of the ocean.

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Help me , what is the properties of fluids ?

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Some of the most fundamental concepts of fluid properties are temperature, density, and composition.

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A round pipe of varying diameter carries petroleum from a wellhead to a refinery. At the wellhead, the pipe's diameter is 50.9 c

seraphim [82]

Answer:

Flow rate 2.34 m3/s

Diameter 0.754 m

Explanation:

Assuming steady flow, the volume flow rate along the pipe will always be constant, and equals to the product of flow speed and cross-section area.

The area at the well head is

$A = \pi r_w^2 = \pi (0.509/2)^2 = 0.203 m^2$

So the volume flow rate along the pipe is

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We can use the similar logic to find the cross-section area at the refinery

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The radius of the pipe at the refinery is:

$A_r = \pi r^2$

$r^2 =A_r/\pi = 0.446/\pi = 0.141$

$r = \sqrt{0.141} = 0.377m$

So the diameter is twice the radius = 0.38*2 = 0.754m

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3 years ago

Egg A is dropped from a height of 1m onto the floor. Egg B is dropped from a height of 1m into a bucket of water. Which statemen

NeTakaya

Answer:

maybe it's because a bucket of water has more density than egg B

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