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MA_775_DIABLO [31]
3 years ago
6

How does air resistance affect the velocity of a falling object ?

Chemistry
1 answer:
FrozenT [24]3 years ago
4 0
Velocity the speed of something in a given direction.
Air resistance is like friction in air, it slows objects down.
When an object is moving faster, which would mean higher velocity, there is more air resistance trying to slow it down and keeping it from moving.

So in short, the more velocity there is, the greater the air resistance. And no matter what the velocity is, air resistance slows falling objects down.
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Why are yeast cells used in making bread?
tatiyna

Answer:

Yeast is used for the leavening of bread. Yeast uses the sugars and oxygen in dough to produce more yeast cells and carbon dioxide gas. The carbon dioxide makes the dough rise which gives the bread a light and spongy texture. Yeast also works on the gluten network.

Explanation:

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3 years ago
Hard water often contains dissolved Ca2+ and Mg2+ ions. One way to soften water is to add phosphates. The phosphate ion forms in
katrin2010 [14]

Answer:

22.4269 grams of sodium phosphate must be added to 1.4 L of this solution to completely eliminate the hard water ions

Explanation:

We will first write the balanced equation for this scenario

3 CaCl2 + 2 Na3PO4 ----> 6 NaCl + Ca3 (PO4)2

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The number of moles of each compound is equal to

0.054 * 1.4 = 0.0756\\0.093* 1.4 = 0.1302

Using the mole ratio of 3:2, convert each to moles of sodium phosphate.

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0.1302 mole of CaCl2 is equal to 0.0868 Na3PO4

Converting moles of sodium phosphate to grams of sodium phosphate we get

(0.05 +0.0868) * 163.94 g/mol

22.4269 grams of sodium phosphate must be added to 1.4 L of this solution to completely eliminate the hard water ions

8 0
3 years ago
After many generations, which trait will be most common? Why?
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It would be sadness because people have been going thru alot of things over the years

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Which structural adaptation would help a plant survive better in shady environment ?
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how do the components that process information in the ENIAC compare with the components that process in a modern laptop computer
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3 years ago
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