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xxMikexx [17]
3 years ago
12

Describe electric charge

Physics
2 answers:
Gwar [14]3 years ago
6 0
Is the physical property of matter that causes it to experience a force when placed in an electromagnetic field. Two types of electric charges are positive and negative.
BaLLatris [955]3 years ago
6 0
Most electric charge is carried by the electrons and protons within an atom. Electrons are said to carry negative charge, while protons are said to carry positive charge, although these labels are completely arbitrary (more on that later). Protons and electrons attract each other, the archetype of the cliché "opposites attract," according to the University of Georgia’s website, HyperPhysics. Conversely, two protons repel each other, as do two electrons.
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Which of the following is a measurement of velocity?
Westkost [7]

Answer:

B) 55 m/h south

Explanation:

Velocity is the rate of displacement per unit of time.

It is mathematically expressed as:

   Velocity  = \frac{displacement}{time}  

Displacement is the distance covered by a body in a specific direction.

Velocity is different from speed in that it specifies the direction of a body as it travels.

Therefore, we say, velocity is a scalar quantity.

When we are giving velocity values, the unit is expressed with the direction also delineated.

From the given choices, the unit with the south direction and meter per hour is obviously correct.

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Answer:

f

Explanation:

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A person throws a 0.21-kg ball straight up into the air. It reaches a height of
Brrunno [24]

Answer:

A

Explanation:

As it begins to fall

F = ma        a = 9.81

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sammy [17]

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Explanation:

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7 0
4 years ago
2. A box filled with books has a mass of 15.0 kg. It is pushed across the floor with a constant force of 60.0 N. If the friction
sesenic [268]

Answer:

3 m/s^{2}

Explanation:

ΣF=ma

The two forces at play are the force applied and the force due to friction. As they are opposing forces set the direction being pushed as the positive in the x direction. the equation you come out with is 60 - 15=(15)A (we know mass to be 15kg). Solve for 3 m/s^2.

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