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Agata [3.3K]
3 years ago
11

A bike travels 35.896 meters in 6.25 seconds. The average speed is than calculated

Chemistry
2 answers:
vichka [17]3 years ago
8 0
Average speed= 
\frac{Distance }{Time}

The distance in this case would be: 
<span>35.896 meters

And the time: 
</span><span>6.25 seconds

Plug these numbers into the formula:
</span>\frac{35.896 }{6.25 }=5.74336

Final answer: 
Average speed= 5.7m/s 
Tcecarenko [31]3 years ago
3 0
Speed=distance over time
The speed would be 5.74336 m/s
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Answer:

The temperature would be reduced by half

Explanation:

Charles' Law => V ∝ T =>  V = kT => k = V/T

For two sets of T vs V conditions, the system constant (k) remains unchanged and k₁ = k₂ => V₁/T₁ = V₂/T₂.

Therefore, if V₁ is reduced to 1/2V₁ = V₂ => V₁/T₁ = 1/2V₁/T₂ => V₁/T₁ = V₁/2T₂

and solving for T₂ =>  1/T₁ = 1/2T₂ => 2T₂ = T₁ => T₂ = 1/2T₁

∴ The initial temperature (T₁) would be reduced by half or, T₂ = 1/2T₁

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Explanation:

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3 years ago
A neutral atom has an atomic number of 20 and a mass number of 41; how many protons, neutrons, and electrons are found within th
djverab [1.8K]
•The atomic number of an atom is the number of protons it has. If the atomic number is 20 then we know the atom has 20 protons.

•The mass number of an atom is the total number of protons and neutrons the atom contains. The mass number is 41 and the number of protons is 20, just subtract 20 from 41 and you will get the number of neutrons: 41 - 20= 21. The atoms has 21 neutrons.

•The number of electrons found in an atom is equal to the number of protons. The atoms has 20 protons which means it has 20 electrons.

So, the answer is:
B) 20 protons, 20 electrons, and 21 neutrons
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Thus the water sample of the chemists is both a mixture and pure substance.




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3 years ago
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