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2 years ago

Question 7(Multiple Choice Worth 4 points)

Physics

2 answers:

vazorg [7]2 years ago

7 0

<h3>Question :</h3>

Which of the following substances is formed during photosynthesis?

⠀ ⠀A. Carbon dioxide

⠀ ⠀B. Light

⠀ ⠀C. Sugar

⠀ ⠀D. Water

<h3>Answer :</h3>

Sugar is formed during photosynthesis.

So, correct option is C. Sugar.

<h3>Explanation :</h3>

During photosynthesis, Carbon dioxide and water are used to produce sugar with help of light.

Nimfa-mama [501]2 years ago

3 0

C is the correct answer, as the equation for photosynthesis is carbon dioxide +water=glucose(sugar) + oxygen

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The total amount of energy transferred as heat is equal to 288 Joules.

<u>Given the following data:</u>

Internal energy = 123 Joules

Work done = 165 Joules

To calculate the total amount of energy transferred as heat, we would apply the first law of thermodynamics.

<h3>The first law of thermodynamics.</h3>

Mathematically, the first law of thermodynamics is given by the formula:

$\Delta E = Q - W$

<u>Where;</u>

$\Delta E$ is the change in internal energy.

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Read more on internal energy here: brainly.com/question/25737117

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An extremely long thin wire carries a uniform linear charge density of 358 nC/m. Find the potential difference between points 5.

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Answer:

1.2kV

Explanation:

We are given that

Linear charge density, $\lambda=358nC/m=358\times 10^{-9} C/m$

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$r_1=5 m$

$r_2=6 m$

We have to find the potential difference between poinst 5.0 m and 6.0 m from the wire.

We know that potential difference of wire

$V=2k\lambda ln\frac{r_2}{r_1}$

Where

$k=9\times 10^9$

Substitute the values

$V=2\times 9\times 10^9\times 358\times 10^{-9}ln\frac{6}{5}$

$V=1174.8 V$

$V=1.17 kV\approx 1.2 kV$

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3 years ago