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Sloan [31]
3 years ago
11

Which statements correctly describe the effect of distance in determining the gravitational force and the electrical force? Chec

k all that apply.

Chemistry
1 answer:
Luda [366]3 years ago
6 0

Answer:

The gravitational force is inversely proportional to the square of the distance..

The electrical force is inversely proportional to the square of the distance..

Explanation:

From the Newton's law of universal gravity, we understood that the force of attraction between the masses two objects is inversely proportional to the square of the distance apart. Mathematically, it is expressed as:

F = GM1M2/r²

Where:

M1 and M2 are the masses of two objects measured in kilograms (Kg).

G is the gravitational constant with a value of 6.67×10¯¹¹ Nm²/Kg²

r is the distance apart measured in metre (m).

F is the force of attraction measured in Newton (N).

From the equation:

F = GM1M2/r²

The force (F) is inversely proportional to the square of the distance (r) apart. This means that the greater the distance apart, the smaller the force of attraction and the smaller the distance apart, the greater the force of attraction between the masses of the object.

From Coulomb's Law, we understood that the force of attraction between two charged particles is inversely proportional to square of the distance. Mathematically, it expreessed as

F = Kq1q2/ r²

Where:

q1 and q2 are charges of two objects measured in coulomb (C) .

r is the distance apart measured in metre (m)

K is the electrostatic constant with a value of 9×10^9 Nm²/C²

F is the force measured in Newton (N).

From the equation:

F = Kq1q2/ r²

The force (F) is inversely proportional to the square of the distance (r) apart.. This implies that as the distance between the charged particles increase, the smaller the force of attraction between them and as the distance between the charged particles decrease, the greater the force of attraction between the two charged particles.

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Answer:

The last one, to swim

Explanation:

The function of cilia and flagella move liquid past the surface of the cell. For single cells, such as sperm, this enables them to swim. For cells anchored in a tissue, like the epithelial cells lining our air passages, this moves liquid over the surface of the cell (e.g., driving particle-laden mucus toward the throat).

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3 years ago
Suppose you decide to define your own temperature scale using the freezing point (13 degrees C) and boiling point (360 degrees C
podryga [215]
M.P of  oleic acid = 13 deg C 
<span>B.Pof  oleic acid = 360 deg C </span>



<span>(360 - 13) / 100 = 3.47 </span>
<span>So 1 deg O = 3.47 deg C </span>

<span>The scale do not start at 0 deg C, it starts at 13 deg C. So to convert deg C to deg O,
 subtract 13 then divide by 3.47 </span>

<span>deg O = (deg C - 13) / 3.47 </span>

<span>convert  O to C multiply by 3.47 then add 13 </span>

<span>deg C = (deg O x 3.47) + 13 </span>


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What would happen if the Earth was tilted more than its current tilt of 23.5°? <br><br> HELP ASAP!!
Oduvanchick [21]

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3 years ago
An aqueous solution 10 g of an optically pure substance diluted to 500ml with water and placed in a polarimeter tube 20 cm long.
Gennadij [26K]

Explanation:

Formula to calculate specific rotation is as follows.

        Specific rotation ([\alpha]) = \frac{\alpha}{c} \times l

where,    \alpha = observed rotation

                   c = concentration in g/ml

                   l = path length in dm

It is given that,

             \alpha = -6.16^{o}    

               c = \frac{10 g}{500 ml} = 0.02 g/ml

              l = 20 cm = 2 dm   (as 1 dm = 10 cm)

Therefore, calculate the specific rotation as follows.

      Specific rotation ([\alpha]) = \frac{\alpha}{c} \times l

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                        = -616^{o}

Thus, we can conclude that the specific rotation of this compound is -616^{o}.

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