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3 years ago

Explain how potential energy and kinetic energy are transformed in a roller coaster.

Chemistry

1 answer:

spayn [35]3 years ago

4 0

Answer:

In the beginning, a roller coaster is still which means the forces acting upon the roller coaster are equal. But then as the rollar coaster starts to move upwards, the potential energy changes into kinetic energy since it is in motion. When the roller coaster reaches the top and stops, its kinetic energy immeadiately transforms into potential energy because it has potential to move and go fast. As the roller coaster descends, the potential energy transforms into kinetic energy. Hope this helps!

Explanation:

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Marizza181 [45]

This is a incomplete question. The complete question is:

It takes 348 kJ/mol to break a carbon-carbon single bond. Calculate the maximum wavelength of light for which a carbon-carbon single bond could be broken by absorbing a single photon. Round your answer to correct number of significant digits

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Explanation:

$E=\frac{Nhc}{\lambda}$

E= energy = 348kJ= 348000 J (1kJ=1000J)

N = avogadro's number = $6.023\times 10^{23}$

h = Planck's constant = $6.626\times 10^{-34}Js
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c = speed of light = $3\times 10^8ms^{-1}$

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$\lambda=\frac{6.023\times 10^{23}\times 6.626\times 10^{-34}\times 3\times 10^8}{348000}$

$\lambda=3.44\times 10^{-7}m=344nm$ $1nm=10^{-9}m$

Thus the maximum wavelength of light for which a carbon-carbon single bond could be broken by absorbing a single photon is 344 nm

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