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Tamiku [17]
3 years ago
14

True or false conceptual physics 2 questions from chapter 25.

Physics
1 answer:
Arlecino [84]3 years ago
3 0

Answer:

Explanation:

1) TRUE; potential difference can be calculated using path integral. Since the electric field is a conservative, the potential difference can be calculated using any path.

2) TRUE; since potential due to a charge is inversely dependent on distance, at infinity the potential will be almost zero.

3) TRUE, W = q.VBA.

4) FALSE; eV is a unit for work (or) energy.

5) TRUE; since the electric force is conservative force. There will be no loss in energy, the decreased potential energy will be coverted to kinetic energy.

6) FALSE; in the direction of electric field the potential decreases.

7) FALSE; equipotential surface is perpendicular to the electric field lines.

8) FALSE; electrostatic potential is scalar quantity. It depends only on the charge and distance from it.

9) FALSE; Inside a conductor the electric field is zero but the electric potential is constant at the value that is at the surface of the conductor.

10) TRUE; as long as the field is being measured outiside the body the bodies act as point charges. So electric fields due to all types of bodies charged identically will be equal.

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Answer:

At the center of the earth if the ball is dropped in the hole then it's mass will be the same but the weight of the ball will be zero. As the gravity at the center of earth will be zero. As,

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For elevator questions, does the weight of a person increase when the elevator is going up or if it's going down-
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The weight of a person increase when the elevator is going up.

<h3>Weight of the person in the elevator</h3>

The weight of the person in the elevator is calculated as follows;

<h3>When the person is going up</h3>

F = ma + mg

F = m(a + g)

where;

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<h3>When the person is going down</h3>

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F = m(g - a)

Thus, the weight of a person increase when the elevator is going up.

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Einstein’s general theory of relativity made or allowed us to make predictions about the outcome of several experiments that had
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Answer:

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A narrow region between two air masses of different densities is a
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A front is a narrow region  between two air masses of different densities.
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