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Leona [35]
2 years ago
9

What is drag? In what situations might it act on the force of gravity?

Physics
2 answers:
stepan [7]2 years ago
7 0
Drag is passive, therefore it does not act on gravity. Drag is a mechanical resistance to motion. If the motion in question was induced by gravity drag it can impede that motion, but has no effect on the gravity. 

hope this helps!
WITCHER [35]2 years ago
6 0

Answer:

Drag is a force of resistance that acts in fluid motion. When there is relative motion with respect to a fluid, a drag force acts in the opposite direction to the motion. Drag depends on viscosity, compressibility of the fluid and mass of the object.

When the sum of drag force and buoyant force are equal to the downward force of gravity, the object falls with a constant velocity known as terminal velocity.

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The first law of thermodynamics can be given as ________.
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\Delta U = Q-W
where
\Delta U is the variation of internal energy of the system
Q is the amount of heat absorbed by the system
W is the work done by the system on the surrounding.

Using this form, the sign convention for Q and W becomes:
Q > 0 --> heat absorbed by the system (because it increases the internal energy)
Q < 0 --> heat released by the system (because it decreases the internal energy)
W > 0 --> work done by the system (for instance, an expansion: when the system expands, it does work on the surrounding, and so the internal energy decreases, this is why there is a negative sign in the formula Q-W)
W < 0 --> work done by the surrounding on the system (for instance, a compression: when the system is compressed, the surrounding is doing work on the system, and so the internal energy of the system increases)
7 0
3 years ago
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Answer:

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4 0
3 years ago
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dem82 [27]
<span>In a 2-dimensional coordinate system, the x- and y-axes
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7 0
3 years ago
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Vesnalui [34]

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5 0
3 years ago
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geniusboy [140]
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6 0
2 years ago
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