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Vikki [24]
3 years ago
13

Is cell using oxygen to break down sugar a physical or chemical change

Physics
2 answers:
Viefleur [7K]3 years ago
5 0
Breaking down sugar (glucose) is a chemical change. Sugar is a compound that can be broken down.
il63 [147K]3 years ago
3 0
In your body, "break down sugar" doesn't mean grind up the crystals
into powder, and if it did, you couldn't do it with oxygen, you'd need
a hammer or a grinder.

"Break down sugar" means take a molecule of sucrose or lactose or fructose,
use oxygen to rip it apart, and then put the pieces back together as a molecule
of glucose.

It should be pretty obvious that this is a chemical change.


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  • Initial velocity=u=72km/h

Convert to m/s

\\ \sf \longmapsto 72\times \dfrac{5}{18}=5(4)=20m/s

  • Final velocity=v=0m/s
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\\ \sf \longmapsto Acceleration=\dfrac{v-u}{t}

\\ \sf \longmapsto Acceleration=\dfrac{0-20}{2}

\\ \sf \longmapsto Acceleration=\dfrac{-20}{2}

\\ \sf \longmapsto Acceleration=a=-10m/s^2

  • Distance be s

Using second equation of kinematics

\\ \sf \longmapsto s=ut+\dfrac{1}{2}at^2

\\ \sf \longmapsto s=20(2)+\dfrac{1}{2}(-10)(2)^2

\\ \sf \longmapsto s=40+(-20)

\\ \sf \longmapsto s=40-20

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\\ \sf \longmapsto Force=ma

\\ \sf \longmapsto Force=5000(-10)

\\ \sf \longmapsto Force=-50000N

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3 years ago
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