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3 years ago

14

What are the products in the photosynthesis equation?

2 answers:

valkas [14]3 years ago

6 0

Answer:

C

Explanation:

Reil [10]3 years ago

4 0

Answer : C

Plants use a process called photosynthesis to make food. During photosynthesis, plants trap light energy with their leaves. Plants use the energy of the sun to change water and carbon dioxide( co2 ) into a sugar called glucose ( c6h12o6 ). Glucose is used by plants for energy and to make other substances like cellulose and starch.

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A small block of mass 20.0 grams is moving to the right on a horizontal frictionless surface with a speed of 0.68 m/s. The block

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Answer:

a) $v'=-0.227\ m.s^{-1}$

b) $v=1.36\ m.s^{-1}$

Explanation:

Given:

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velocity of the lighter block, $u'=0.68\ m.s^{-1}$

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velocity of the heavier block, $u=0\ m.s^{-1}$

a)

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where:

$v'=$ final velocity of the lighter block

$v=$ final velocity of the heavier block

$m'.u'=m'.v'+m.v$

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Since kinetic energy is conserved in elastic collision:

$\frac{1}{2}m'.u'^2=\frac{1}{2}m'.v'^2+\frac{1}{2}m.v^2$

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now we substitute the value of v from eq. (2) in eq. (1)

$m'(u'-v')=m(u'+v')$

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b)

now we substitute the value of v' from eq. (2) in eq. (1)

$m'(u'-v+u')=m.v$

$2m'.u'=(m-m')v$

$2\times 0.02\times 0.68=(0.04-0.02)\times v$

$v=1.36\ m.s^{-1}$

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