DaveE's latest activity
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There is a unique answer for the purely vertical motion: ##\omega=\frac{gT}{2R}## $$-\frac{gT^2}{2}+\omega R T=0$$ Just read the text... -
##T## is fixed.
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DaveE replied to the thread SHM amplitude and angular frequency from velocity equations.One of the things you'll need to learn in the real world, after you leave school, is that there usually is no answer key, and there...
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DaveE replied to the thread High School Just a cool high school problem.Yes, so there is no unique answer for the purely vertical motion of the particle. It will hit the wheel at the same height it left...
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I don't understand why is infinity a problem. Sure, it is not intuitive and sometimes it complicates things. But to negate the infinity...
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DaveE reacted to Dale's post in the thread Undergrad Single-photon double-slit with multiple apparatus? with
Like.
OK, so the test you are proposing is actually not a strong test of this. If you want to test for “apparatus history” you would want the... -
DaveE replied to the thread Graduate An electrolytic capacitor keeps charging by itself.Wait. Are you disrespecting the 100pW of charging power my previous data clearly demonstrated (at least once, anyway)? :wink: Yea...
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DaveE reacted to Baluncore's post in the thread Graduate An electrolytic capacitor keeps charging by itself with Like.
Fifty years ago I remember reading about a device from fifty years before that. There can be rectifier action in every asymmetrically...
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DaveE replied to the thread Graduate An electrolytic capacitor keeps charging by itself.Not precisely true. While larger in electrolytics, this is a well known effect in HV film and oil caps, which is why they are always...
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DaveE replied to the thread Graduate An electrolytic capacitor keeps charging by itself.This is a DC effect. 60Hz energy harvesting would require a rectifier of some sort (like dissimilar metals?). Yet dielectric absorption...
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DaveE reacted to sophiecentaur's post in the thread Graduate An electrolytic capacitor keeps charging by itself with Like.
A very thin metallic coating would possibly screen an Electric Field but would have little effect on any Magnetic Field so that some...
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DaveE reacted to renormalize's post in the thread High School When light is polarized with itself with Like.
Yes, please do make a drawing since I don't understand your description. But do bear in mind that both the electric and magnetic field...
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1. Yes, counting ADC clock cycles is equivalent to measuring time. Keep in mind that many pulse waveforms exhibit range-Doppler...
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DaveE reacted to Fabien's post in the thread Hi, my name is Fabien, I'm 32 years old, and I live in Italy with Like.
I hope to give even if a little, a help to understand the real nature of the world. Maybe I will never reach the level of the great...
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DaveE reacted to DaveC426913's post in the thread Options for fixing power connector on Acer laptop with
Haha.
Seems an appropriate place to post this meme: