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3 years ago

Chemical substances in food that have specific functions in your body are called?

Physics

1 answer:

andreev551 [17]3 years ago

4 0

Answer:

Chemical substances in food that have specific functions in your body are called Nutrients. Examples: proteins, fats, carbohydrates, vitamins, and minerals

Explanation:

These chemical substances keep our body healthy.

These chemical substances prevent the premature aging.

They help our body to fight against diseases.

They build the new tissues and cells for growth.

And in short, they help in the growth, development of our body.

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When we do dimensional analysis, we do something analogous to stoichiometry, but with multiplying instead of adding. Consider th

Ksivusya [100]

Answer:

The dimension is $D = L ^{2} T^{-1}$

Explanation:

From the question we are told that

$J = -D \frac{dn}{dx}$

Here $[J] = \frac{1}{L^2 T}$

$[n] =\frac{1}{L^3}$

$[x] = L$

$\frac{1}{L^2 T} = -D \frac{d(\frac{1}{L^3})}{d[L]}$

Given that the dimension represent the unites of n and x then the differential will not effect on them

$\frac{1}{L^2 T} = -D \frac{(\frac{1}{L^3})}{[L]}$

=> $D = \frac{L^{-2} T^{-1} * L }{L^{-3}}$

=> $D = L ^{2} T^{-1}$

5 0

3 years ago

Choose the best description of the attraction between you and your classmate.

Lerok [7]

Answer:

The correct option is;

D. There is not enough information to answer this question

Explanation:

The universal gravitational constant = 6.67408 × 10⁻¹¹ 3³/(kg·s²)

For an in between distance of 1 m and equal masses of 60 kg, we have;

$F = G \times \dfrac{m_{1} \times m_{2}}{r^{2}} = 6.67408 \times 10^{-11} \times \dfrac{60 \times 60}{1^{2}} \approx 2.403 \times 10^{-7} N$

The gravitational attraction ≈ 2.403 × 10⁻⁷ N, which does not correspond with the answers, therefore, the best option is that there is not enough information to answer this question.

5 0

3 years ago

A conductor shaped as a circular loop with a radius of 4.0 m is located in a uniform but changing magnetic field. If the maximum

bekas [8.4K]

Answer:

$\frac{\delta B}{\delta t}= 0.0995 \ T/s$

Explanation:

Given that :

The radius of the circular loop = 4.0 m

Maximum Emf $E_{max}$ = 5.0 V

The maximum rate at which the magnetic field strength is changing if the magnetic field is oriented perpendicular to the plane in which the loop lies can be determined via the expression;

$E_{max}$ = $Area (A) * \frac{\delta B}{\delta t}$

$E_{max}$ = $\pi r^2 * \frac{\delta B}{\delta t}$

5.0 = $\pi * (4.0)^2 * \frac{\delta B}{\delta t}$

5.0 = $50.27 * \frac{\delta B}{\delta t}$

$\frac{\delta B}{\delta t}= \frac{5}{50.27}$

$\frac{\delta B}{\delta t}= 0.0995 \ T/s$

5 0

3 years ago

In a cathode ray tube, the number of electrons that reach the fluorescent screen is controlled by the:

EleoNora [17]

Answer:

Grid

Explanation:

The number of electrons attaining the fluorescent light is regulated by the grid in a cathode ray tube.When the heater is supplied with current, it allows the electrons to emit from the cathode. Before approaching the anode the electrons pass through grid opening. The number of electrons attempting to reach the anode may also be regulated by managing the number of electrons passing through the grid.

6 0

3 years ago

How does a human insulin gene become part of a bacterium's plasmid?

Murrr4er [49]

1. Scientists are responsible for removing plasmids, small rings of DNA, from bacterial cells.

2. The Enzymes cut open the plasmid DNA. The same enzyme removes the human insulin gene from its chromosome.

3. The human insulin gene attaches the open ends of the plasmid to form a closed ring.

4. Some bacterial cells take up the plasmids that have the insulin gene.
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5. When cells reproduce, the news cells will contain copies of the engineered plasmid. The foreign gene directs the cell to produce human insulin.</span>

4 0

4 years ago

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