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2 years ago

Which best summarizes a concept related to the work-energy theorem?

Physics

1 answer:

Maurinko [17]2 years ago

4 0

Answer:

When work is positive, the environment does work on an object.

Explanation:

According to the work-energy theorem, the net work done by the forces on a body or an object is equal to the change produced in the kinetic energy of the body or an object.

The concept that summarizes a concept related to the work-energy theorem is that ''When work is positive, the environment does work on an object.''

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3 years ago

Unpolarized light with intensity 300 W/m^2 passes first through a polarizing filter with its axis vertical, then through a secon

SOVA2 [1]

Answer:

The angle from vertical of the axis of the second polarizing filter is 50.57⁰.

Explanation:

Given;

intensity of the unpolarized light, I₀ = 300 W/m²

intensity of emergent polarized light, I = 121 W/m²

let the angle from vertical of the axis of the second polarizing filter = θ

Apply Malus's law, intensity of emergent polarized light is given as;

I = I₀Cos²θ

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Therefore, the angle from vertical of the axis of the second polarizing filter is 50.57⁰.

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2 years ago

During resistance exercise, muscles are

Serjik [45]

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2 years ago