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Simfish
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And if so, is this inertia directly proportional to its viscosity?
Can gases have inertia?
Can gases have inertia?
D H said:The water's moment of inertia about its center of mass is essentially zero in this instance.
AlephZero said:I'm going to quibble with your terminology there, because I think the OP question may be confusing "inertia" and "momentum".
The water's moment of inertia is exactly the same as a the moment of inertia of a solid of the same density and shape. Moment of inertia is a property of mass and geometry only.
But in the spinning pan example, there is no way to apply much force to the water to make it rotate, because it has low viscosity, therefore the water doesn't have much angular momentum compared with a solid pan-shaped object. Since force = rate of change of momentum, that's why you don't feel a difference in the force to spin the pan.
The concept of "moment of inertia" isn't very useful in most fluid flow situations because the fluid does not move like a rigid body.
Yes, liquids can have inertia. Inertia is the tendency of an object to resist changes in its velocity. This applies to both solid and liquid objects.
The inertia of liquids differs from solids in that liquids have less resistance to changes in their shape and volume. This is because liquids do not have a fixed shape and their molecules can move more freely compared to solid objects.
Yes, the inertia of liquids is affected by gravity. Gravity is a force that acts on all objects, including liquids, and can influence their movement and inertia.
Yes, the inertia of liquids can be measured using various methods such as by observing the changes in their movement or by calculating their mass and velocity.
The density of a liquid can affect its inertia as it is related to the mass of the liquid. A liquid with a higher density will have a higher inertia compared to a liquid with a lower density.