Gavran's latest activity
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GGoodwill CEO says he’s preparing for an influx of jobless Gen Zers because of AI—and warns, a youth unemployment crisis is already...
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GGavran reacted to Charles Link's post in the thread Undergrad Trigonometry problem of interest with
Like.
@neilparker62 Yes, the law of cosines used twice with your diagram solves it. Very good. :) -
GGavran reacted to mcastillo356's post in the thread High School Onto set mapping is the surjective set mapping, and into injective? with Like.
Lemma 5 and Lemma 6 seem easy, but I've had to think about set partitions and equivalence relations. Attempt For any equivalence...
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GGavran reacted to JimWhoKnew's post in the thread Graduate Jackson: justification of the Poynting vector by GR with Like.
I'm currently away from my copy of Jackson's, so I can't look it up. However, note that in classical physics, QM and QFT we can add a...
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GGavran reacted to Charles Link's post in the thread Undergrad Trigonometry problem of interest with Like.
@Gavran Still I am a little disappointed that the PF members who can respond to these posts don't seem to have looked carefully over...
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GGavran replied to the thread Undergrad Trigonometry problem of interest.By replacing humans with artificial intelligence, this forum would lose its soul, and some kind of emptiness would be left.
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GGavran reacted to Charles Link's post in the thread Undergrad Trigonometry problem of interest with
Informative.
I'm finding it somewhat amazing how the ai overview is able to summarize for me the steps that are needed for the method of finding... -
GGavran reacted to WWGD's post in the thread Undergrad About the existence of Hamel basis for vector spaces with Like.
I suspect there are models in which there are intermediate cardinalities.
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GHow can we get this information from the question?
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GGavran replied to the thread Speed of moth related to Doppler Effect.Your solution is okay. You can check it at https://en.wikipedia.org/wiki/Doppler_effect#Radar.
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GGavran reacted to songoku's post in the thread Correct statement about a reservoir with an outlet pipe with Like.
Thank you very much for all the help and explanation kuruman, jbriggs444, Lnewqban, Herman Trivilino, Gavran, haruspex
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GGavran reacted to songoku's post in the thread Correct statement about siphon used to empty water tank with Like.
Thank you very much for all the help and explanation jbriggs444, Chestermiller, Lnewqban, Gavran
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GGavran replied to the thread Undergrad Trigonometry problem of interest.Okay. ## c^2=a^2+(2R)^2-2\cdot a\cdot2R\cdot\cos(\angle ADC) ## ## c^2=x^2+b^2-2\cdot x\cdot b\cdot\cos(\angle ABC) ## I want to offer...
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GGavran reacted to Charles Link's post in the thread Undergrad Trigonometry problem of interest with Like.
@Gavran I presume in your solution that you plugged in ## R=x ##. You then get ## a^2-b^2+3x^2 =2a^2+ab ## so that ## 3x^2=a^2+b^2+ab...
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GGavran reacted to Charles Link's post in the thread Undergrad Trigonometry problem of interest with Informative.
Looking back to the other posts, I see @Gavran also used Ptolemy's theorem previously in post 43, but the post 52 method gets the...