4 years ago

What are water and carbon dioxide converted into by the end of photosynthesis

Physics

1 answer:

vova2212 [387]4 years ago

7 0

Answer:

In photosynthesis, energy from light is used to convert carbon dioxide and water into glucose and oxygen.

Explanation:

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4 years ago

A woman can row a boat at 4.0 mph is still water.

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Answer:

1) $\theta=120^{\circ}$ from the positive x-axis.

2) $t=20\ min$

Explanation:

Given:

speed of rowing in still water, $v=4\ mph$

speed of water stream, $v_s=2\ mph$

we know that the direction of resultant of the two vectors is given by:

$tan\ \beta=\frac{v.sin\ \theta}{v_s+v.cos\ \theta}$

where:

$\beta=$ the angle of resultant vector from the positive x-axis.

$\theta =$ angle between the given vectors

When the rower wants to reach at the opposite end then:

$\beta =90^{\circ}$

so,

$tan\ 90^{\circ}=\frac{v.sin\ \theta}{v_s+v.cos\ \theta}$

$\Rightarrow v_s+v.cos\ \theta=0$

$2+4\times cos\ \theta=0$

$cos\ \theta=-\frac{1}{2}$

$\theta=120^{\circ}$ from the positive x-axis.

Now the resultant velocity of rowing in the stream:

$v_r=\sqrt{v^2+v_s^2+2\times v.v_s.cos\ \theta}$

$v_r=\sqrt{4^2+2^2+2\times 4\times 2\times cos\ 120}$

$v_r=12\ mph$

Therefore time taken to cross a 4 miles wide river:

$t=\frac{4}{12}$

$t=\frac{1}{3}\ hr$

$t=20\ min$

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3 years ago

What ways might a superhero utilize magnetic forces to move, levitate or travel from place to place?

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He could use magnets to lift heavy things and also move things like a train

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Answer:

what is the action and reaction ?

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A team of scientists are studying three species of frogs. How would the scientists use comparative anatomy and molecular biology

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They would identify the frogs by looking at their DNA and the genetic material

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