PHYSICS MIDDLE SCHOOL

The blank are the specialized tubes in the kidneys in which waste is collected from the blood

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Answer 1

Answer: Nephrons are the names of the tubes that collect the waste and transport to kidney

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15 POINTS! Yes, more science... What kind of tool can you use to view atoms and molecules up close?

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Generally, molecules are hard to see up close, that is why models are made. So that people can see the structure of atoms and how the nucleus looks.

Other then a model, an transmissional electron microscope is used to look at atoms up close.

Well, its a microscope pretty much. But they are called "electron microscopes". But yea just a microscope. ...... oh yeah also a scanning tunneling microscope :)

How do fossils provide evidence that evolution has taken place

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fossils provide evidence that evolution has taken place because it is the remains or mold of a organism that was preserved in the cast or mold

they provide evidence because they show how long ago things looked liked dinosaurs

The slope on a distance-time graph shows a ball moving from 20 m to 40 m in 1 s and from 40 m to 80 m in the next second

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Slope in the first second: 20 m/s

Slope in the next second: 40 m/s

Average slope: 30 m/s

Explanation:

On a distance-time graph, the slope of the curve represents the speed of the object.

In fact, we have:

The distance covered is the change in the y-variable, so $\Delta y$
The time elapsed is the change in the x-variable, so $\Delta x$

Speed is the ratio between distance and time, therefore

$speed = (distance)/(time)=(\Delta y)/(\Delta x)$

which corresponds to the slope of the line.

In this problem, we have a ball moving from 20 m to 40 m in 1 s, so

$distance = 40-20 = 20 m = \Delta y$

$time = 1 s = \Delta x$

So the slope in the first second is

$(\Delta y)/(\Delta x)=(20)/(1)=20 m/s$

In the next second, the ball moves from 40 m to 80 m, so

$distance = 80-40 = 40 m = \Delta y$

$time = 1 s = \Delta x$

So the slope in the next second is

$(\Delta y)/(\Delta x)=(40)/(1)=40 m/s$

While if we consider the overall graph in the 2 seconds, we have

$distance = 80-20 = 60 m = \Delta y$

$time = 2 s = \Delta x$

So the average slope is

$(\Delta y)/(\Delta x)=(60)/(2)=30 m/s$

Learn more about speed:

brainly.com/question/8893949

#LearnwithBrainly

A positively charged particle in an atoms nucleus is called an what

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A positively charged particle in an atom's nucleus is called "an proton".

A proton is a positively charged particle found in the nucleus of an atom.

Which has more inertia? A bowling ball or a whiffle ball? Why?

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Bowling ball would be your answer since it has the most mass.

A wiffleball because it's smaller

Answer fast, please.

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D bomb b j de violence

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