PeroK's latest activity
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PeroK replied to the thread I Electron energy in atoms.The expected value is the average. You always get an energy corresponding to the transition between two eigenstates. The measurement of... -
PeroK replied to the thread I Electron energy in atoms.Only the ground state is stable. An atom in an excited state will emit one or more photons and reduce to the ground state. The same...
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PeroK reacted to kuruman's post in the thread Can terminal velocity be determined from the information given? with
Like.
Where did the maximum speed of 150 mph in your solution come from? On edit After some snooping, I found that solutions of this problem... -
PeroK replied to the thread AI Marketed To Students: "Hello easy A's!".She and her husband are not short of a bob or two!
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PeroK replied to the thread Compton shift problem.The energy of a photon is inversely proportional to the wavelength. Hence $$\frac{E'-E}{E} = \frac{E'}{E}-1 = \frac{\lambda}{\lambda'}...
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PeroK reacted to FactChecker's post in the thread Finding the nth roots of a complex number with Like.
By the time one takes complex analysis, he should be comfortable leaving it as ##\sqrt 2##. Leave the approximation accuracy for the...
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##\cos (110^{\circ})## is negative so you can tell that ##1 - \cos (110^{\circ})## will be greater than 1. (I haven't checked if that...
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PeroK replied to the thread Compton shift problem.I get 17.8%. Note that energy is inversely proportional to wavelength.
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PeroK replied to the thread Compton shift problem.It's better to use algebra and plug the numbers in at the end. You should be able to express the percentage energy loss as a function of...
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PeroK reacted to ShadowKraz's post in the thread B Is space stretching or is new space being created? with Like.
Been there, read that, moved beyond. It does help folks mired in the balloon analogy, however, I'm not mired in it. But thank you.
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PeroK replied to the thread Help me to clear my doubt about a problem of Classical Mechanics (Car and Bicycle).PS it's actually a Spline function - continuous and piecewise polynomial in ##t##.
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PeroK replied to the thread Help me to clear my doubt about a problem of Classical Mechanics (Car and Bicycle).It's actually a continuous function.
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PeroK reacted to ShadowKraz's post in the thread B Is space stretching or is new space being created? with Like.
On looking at the maths with a limited understanding of it (somehow calculus defeated me in my college days), I leapt, with the help of...
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PeroK replied to the thread Help me to clear my doubt about a problem of Classical Mechanics (Car and Bicycle).Those two expressions are equal!
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PeroK reacted to TensorCalculus's post in the thread Just a computer programmer that enjoys physics with
Care.
:welcome: Listen to all the people above, we don't want you turning into one of the many programmers who post a personal theory of...