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77julia77 [94]
2 years ago
7

What is the best explanation of work?

Physics
2 answers:
9966 [12]2 years ago
7 0

Answer:

In  physics, work is defined as a  force  causing the movement—or displacement—of an object. In the case of a constant force, work is the scalar product of the force acting on an object and the displacement caused by that force.

Contact [7]2 years ago
7 0

Answer: option D

Explanation:  In physics, you say that a force is "doing work" when the force is acting on an object and causes a movement in the said object. This means that if you start pushing a wall, and the wall does not move, there is no work generated, indifferent of the amount of force applied.

Under this viewpoint, the right option is D.

"Work occurs when a force acts on an object and causes a displacement of that object."

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Lightning bolts can carry currents up to approximately 20 kA. We can model such a current as the equivalent of a very long, stra
GalinKa [24]

Answer:

how large a magnetic field would you experience = 8.16 x 10∧-4T

Explanation:

I = 20KA = 20,000A

r = 4.9 m

how large a magnetic field would you experience =  u.I/2πr

how large a magnetic field would you experience = (4π x10∧-7) × 20000/2π × 4.9

how large a magnetic field would you experience = 8.16 x 10∧-4T

4 0
3 years ago
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2 years ago
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Vera_Pavlovna [14]

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5 0
2 years ago
What is a law in physics? state the criteria for a statement to be a law.​
steposvetlana [31]

Answer:

By nature, laws of Physics are stated facts which have been deduced and derived based on empirical observations. Simply put, the world around us works in a certain way, and physical laws are a way of classifying that “working.”

8 0
2 years ago
How many newtons of force are represented by the following amount: 3 kg·m/sec^2?
HACTEHA [7]

1 newton is the force that accelerates
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                       and    3 kg-m/s²  =  3 newtons .

4 0
3 years ago
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