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New answers tagged definition

What's the difference between normal viscous stress and pressure?

The pressure $-p\mathbf{I}$ is the Thermodynamic pressure, which is present whether the fluid is flowing or not, while the diagonal terms of the viscous stres tensor is the normal stresses arising ...
Accepted

What is the formal definition of capacity fade?

Different people would give these things different names most likely. Looking at the graph the blue curves they are the percentage amount of capacity that's been lost with time, so the loss of ...
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How many significant figures does the speed of light have?

If you use Planck Units the problem dissolves. The speed of light is 1. Not 1.0, not 1.00000, but just 1.
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How many significant figures does the speed of light have?

Physical quantities don't have significant figures. Measurements have significant figures. If you perform a measurement of the speed of light, and you're confident that the first five digits of your ...
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How many significant figures does the speed of light have?

The meter and the second are defined to be the units of time such that $c = 299792458$ m/s exactly. This number can be thought of as having an infinite number of significant figures, since it is an ...
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1 vote

What is the difference between loudness, amplitude and volume?

The terms are related, but they are certainly not the same. The peak amplitude of a wave is its maximum displacement away from its equilibrium position. This term can be applied to any type of wave, ...
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Accepted

Strogatz's condition on definition of energy

If $E$ does not depend on $x(t)$, then $\frac{dE}{dt}=0$ doesn't give you any information about $x(t)$. Since the entire goal of classical mechanics is to solve for $x(t)$, this means such an $E$ ...
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For me, the main difference between spherical and BL coordinates is related to the Cartesian coordinates which are as follows: spherical coordinates $$x = r\sin\theta\cos\varphi$$  y = r\sin\...