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Naddika [18.5K]
3 years ago
11

A swimmer starting from rest has a final velocity of 2.0 m/s after 20 seconds. What is her average acceleration?

Chemistry
1 answer:
Nonamiya [84]3 years ago
4 0

Answer:

D

Explanation:

Acceleration = velocity/time

A = 2*20

A = 0.10 m/s²

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A student flipped a coin 1000 times and recorded the outcome of each
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i guess none of these or 3.4% for 10%

Explanation:

I think the answer should be in the 30 to 40 number scale

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What are the laws and calculations governing gas behavior?
Thepotemich [5.8K]

Answer:

Laws governing gas behavior.

Explanation:

Boyle's law:

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According to this law:

"The volume of a fixed amount of gas at constant temperature is inversely proportional to its pressure".

P  \alpha   V.

Charle's law:

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According to this law:

"The volume of a fixed amount of gas at constant pressure is directly proportional to its absolute temperature".

V   \alpha   T.

Avogadro's law:

According to this law:

equal volumes of all gases under the same conditions of temperature and pressure contain, an equal number of moles.

V   \alpha    n.

Ideal gas equation:

By combining all the above-stated gas laws, this equation is formed as shown below:

V  \alpha   \frac{nT}{P} \\=> V= R. nT/ P\\=>PV=nRT

R is called universal gas constant.

It has a value of 0.0821L.atm.mol-1.K-1.

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A single atom of an element has 21 neutrons, 20 electrons, and 20 protons. Which element is it?
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Answer:

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5 0
3 years ago
Y = 57.15 − 0.5 X If Y equals 5 , what is X ?<br><br> Then is Y=3, what is X?
Fiesta28 [93]

When y equals 5, x is 104.3

When y equals 3 then x is 108.3

<em><u>Solution:</u></em>

<em><u>Given expression is:</u></em>

y = 57.15 - 0.5x

<h3><u>If y equals 5 what is x ?</u></h3>

Substitute y = 5 in given expression

5 = 57.15 - 0.5(x)

5 = 57.15 - 0.5x

0.5x = 57.15 - 5

0.5x = 52.15

Divide both sides by 0.5

x = 104.3

Thus when y equals 5, x is 104.3

<h3><u>If y = 3 what is x ?</u></h3>

Substitute y = 3 in given expression

3 = 57.15 - 0.5(x)

3 = 57.15 - 0.5x

0.5x = 57.15 - 3

0.5x = 54.15

Divide both sides by 0.5

x = 108.3

Thus when y equals 3 then x is 108.3

7 0
4 years ago
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