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Anettt [7]
3 years ago
7

For every action force, there is: A. a net force. B. an unbalanced force. C. a friction force. D. an equal and opposite force. E

. all of these
Physics
1 answer:
Vladimir [108]3 years ago
7 0

Answer:

The correct option is 'D': Equal and opposite force.

Explanation:

We know from Newton's third law of motion

"For every action there exists an equal and opposite reaction".

The statement is further explained as

If there exists a force from Body 1 to Body 2 then Body 2 must also exert an equal and opposite force on the Body 1.

In simple terms we can say that the action and the reaction forces exist in pairs and are always present if any one among them is present.

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A helix with 17 turns has height H and radius R. Charge is distributed on the helix so that the charge density increases like (i
marishachu [46]

The total charge on the helix is

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Height of one turn = \frac{H}{n}

Horizontal distance in one turn = 2\pi R

<h3>length of spring in one turn is</h3>

l = \sqrt{h^2+(2\piR)^2}\\\\&#10;l = \sqrt{(\frac{H}{n})^2+(2\piR)^2}&#10;

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L = n*l\\\\&#10;L = n * \sqrt{(\frac{H}{n})^2+(2\piR)^2}&#10;

Therefore, charge on spring

Q = \frac{1}{2}*L*(13-0)\\\\&#10;Q = \frac{1}{2}*n\sqrt{(\frac{H}{n})^2+(2\piR)^2}*13\\\\&#10;Q = \frac{1}{2}*17*13\sqrt{(\frac{H}{17})^2+(2\piR)^2}\\\\&#10;Q = \frac{221}{2}\sqrt{(\frac{H}{17})^2+(2\piR)^2\\\\&#10;

For more information on linear charge density, visit

brainly.com/question/15359786

8 0
2 years ago
An object–spring system undergoes simple harmonic motion. If the amplitude increases but the mass of the object is not changed,
cricket20 [7]

Answer:

The correct answer is:

doesn't change (d)

Explanation:

The total energy in a system is the sum of Kinetic and Potential energies in a system, assuming that energy is not lost to an external procedure. Now, let us define what potential and kinetic energies are:

Potential Energy: this is energy at rest or stored energy

Kinetic Energy: this is energy in motion

In a simple harmonic motion of a mass-spring system, there is no dissipative force, hence the total energy is equal to the potential and kinetic energies. The total energy is not changed rather, it varies between potential and kinetic energies depending on the point at which the mass is. The kinetic energy is greatest at the point of lowest amplitude (highest velocity) and lowest at the point of greatest amplitude (lowest velocity), while potential energy is greatest at the point of highest amplitude (lowest velocity) and lowest at the point of smallest amplitude ( highest velocity). However, at every point, the sum of kinetic and potential energies equals total energy.

6 0
3 years ago
Planet z has a rocky surface. at height 3240 km above the surface, the gravitational acceleration is what is the radius of the p
jolli1 [7]
Https://www.google.com/search?tbs=sbi:AMhZZiuc6mk5S438WBb7iizj56MvoVz9sxfbOaVcy_1SdDTQnJdcyo0Qu7CKsc...
8 0
4 years ago
What happens to the Total Energy as the spring bounce?
fiasKO [112]
Total energy will remain the same
4 0
3 years ago
Which of the following values represents an index of refraction of an actual material?
serg [7]

Sadly, we're forced to answer the question without the benefit of the
list of choices, which, for some reason, you decided not to let us see.

Index of refraction of a substance =

               (speed of light in vacuum) / (speed of light in the substance).

Any number greater than  ' 1 ' can be an index of refraction.  A number
less than ' 1 ' can't be . . . that would be saying that the speed of light
in this substance is greater than the speed of light in vacuum.

3 0
4 years ago
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