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What is an inertial frame? - Physics Stack Exchange Wikipedia defines an inertial frame as: In classical physics and special relativity, an inertial frame of reference (also inertial reference frame or inertial frame, Galilean reference frame or inertial space) is a frame of reference that describes time and space homogeneously, isotropically, and in a time-independent manner [1]
Reynolds number and inertial force - Physics Stack Exchange Inertial force, as the name implies is the force due to the momentum of the fluid This is usually expressed in the momentum equation by the term $ (\rho v)v$ So, the denser a fluid is, and the higher its velocity, the more momentum (inertia) it has As in classical mechanics, a force that can counteract or counterbalance this inertial force is the force of friction (shear stress) In the
Whats the difference between the five masses: inertial mass . . . A body's inertial mass is the mass measured by its resistance to changes in motion Its gravitational mass is the mass measured by its attraction by gravitational force Its rest mass is the mass when it's at rest with respect to an observer, and is then equivalent to its inertial mass
What is an inertial frame in terms of acceleration? After learning about the difference between coordinate and proper acceleration, I am now confused on the precise definition of an inertial reference frame in terms of proper and coordinate accelera
Is there any true inertial reference frame in the universe? 23 Is there any true inertial reference frame in the universe? Newton's first law states that an object at rest remains at rest, and an object performing uniform motion performs uniform motion, until and unless acted upon by an external force, if viewed from an inertial frame It is the definition of an inertial frame of reference
Why is the Earth not an inertial frame of reference? The earth can of course qualify as a inertial frame of reference without "pretending other apparent and fictional forces " Because it is the orbital and rotational motions of the earth that are the pretended and fictional factors
General Relativity: Definition of Locally Inertial Frame Only inertial frames look like Minkowski frames as used in special relativity This is the essence of the equivalence principle, and it should be clear that only one of your formulations is correct The standard test of an inertial frame is to use an accelerometer (you may even have one in and app for your mobile phone)
Inertial Frames of Reference - Inertial vs. Accelerated Frames The definition of an inertial frame of reference is restricted only to comparisons between frames of reference If a frame of reference is to be considered an inertial one, the condition that its relative motion with respect to other frames of reference should be uniform motion in a straight line, is to be fulfilled
What is the relationship between gravity and inertia? To expand on @Aaron's comment "Einstein told us that gravity and inertia are identical " is simply incorrect Einstein told us that gravitational mass and inertial mass are the same—which is interesting precisely because these are different physical phenomena