PeroK's latest activity
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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'}... -
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... -
##\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... -
PeroK replied to the thread AI Marketed To Students: "Hello easy A's!".I was speaking to someone recently who is a professor in the social sciences. She has given up teaching and gone back to research only...
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PeroK reacted to Hornbein's post in the thread AI Marketed To Students: "Hello easy A's!" with Like.
Seen on Facebook. An ad for AI. "hello easy A's!"
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PeroK replied to the thread Just a computer programmer that enjoys physics.Although you won't want to hear this, we get lots of computer programmers here who believe they can publish physics research papers...
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PeroK reacted to Sagittarius A-Star's post in the thread I Confused about time dilation -- motion vs energy with
Informative.
As others mentioned, that's wrong. The following explanation in a local scenario shows, that "gravitational" time-dilation happens also...