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Rudiy27
3 years ago
14

One differnce between magnetic poles and elcyrical charges is that​

Physics
1 answer:
Sphinxa [80]3 years ago
8 0

Answer:

In the electric field, the like charges repel each other, and the unlike charges attract each other, whereas in a magnetic field the like poles repel each other and the unlike poles attract each other.

Explanation:

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Which factors are used to calculate the kinetic energy of an object? Check all that apply. gravity velocity volume mass height
Sonja [21]

<em>Quantities that determine the kinetic energy of a body are its </em><em>mass and velocity </em>

Answer:  <em>mass and velocity </em>

Explanation:

The kinetic energy of a body is the energy possessed by an object by virtue of its motion. It is given by the equation

                                       k= \frac{1}{2}mv^2

Where m represents mass of the body and v represents its velocity.

Two bodies of equal velocity but different mass the heavier body will have greater kinetic energy. When an object is at rest its velocity is equal to zero. Thus its kinetic energy will be zero. Hence it can be concluded that only moving bodies have kinetic energy.

Stationary objects placed at a height possess potential energy which is the energy by virtue of their position or configuration. The total mechanical energy of a system is the sum of potential and kinetic energy.

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3 years ago
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Which of the following is the best reason for using a scanning electron microscope?
torisob [31]

Answer is C: Ability to see three-dimensional images of the surfaces of object

Explanation:

To enable the technician see fractures and broken particles in a better resolution as the SEM sees the peaks and valley of the structure.

8 0
3 years ago
Electrons are negatively charged, protons are positively charged that makes neutrons what charge
Naddik [55]
Neutral - they have mass but no charge
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A swimmer moves through the water at 2.5 meters per second and experiences a drag force of 240 N. How much power is she generati
mote1985 [20]
-- There's a force of 240N pushing her backwards.

-- She's maintaining a steady speed (of 2.5 m/s) .

-- In order to maintain a steady speed (no acceleration),
the forces on her must be balanced.  So she's maintaining
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-- Every time she moves 1 m forward, she does work of
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-- She moves 2.5 meters forward every second.
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-- 600 joules per second = 600 watts .    
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3 years ago
Which best describes the result when the concentration of a solution is increased? The amount of solute is increased, and the co
oee [108]

The amount of solute is increased, and the conductivity of the solution is increased

Explanation:

The ability of a solution to conduct electricity is conductivity.The more concentrated a solution is the higher the conductivity.This is because the concentration of ions will increase.Increasing solute increases the concentration of a solution thus rising the conductivity.

Learn More

Conductivity of a solution :brainly.com/question/9486572

Keywords : concentration, solution, solute, conductivity

#LearnwithBrainly

8 0
3 years ago
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