jbriggs444's latest activity
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jbriggs444 reacted to PeroK's post in the thread Irodov- 1.123- Simple conceptual question with two masses connected by a spring with
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What I do with these problems is try to think them through first. My instinct is forget formulas for now and try to figure out what... -
It makes no difference. I guess, if you were starting at the beginning, then the body would have no forces acting on it. After you've...
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jbriggs444 replied to the thread B Newton's first law?.One way of understanding Newton's first law is as a statement that inertial frames exist. That there is such a thing as a frame of...
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jbriggs444 reacted to Herman Trivilino's post in the thread Reconcile poundforce w/slug and lbmass with Like.
Any reputable company would calibrate the scale so that it reads one pound. They would not agree with you that the 32.2 is fixed...
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jbriggs444 reacted to jedishrfu's post in the thread A Crisis for Newly Minted CompSci Majors -- entry level jobs gone with Like.
Yes, it's sad that this has happened. Looking over my 45 years as a software engineer and having played with AI, I can understand why...
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jbriggs444 replied to the thread A Crisis for Newly Minted CompSci Majors -- entry level jobs gone.Yes indeed. In the latter part of my career (network engineer, retired 2.5 years now) much of my value to the organization was in...
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jbriggs444 replied to the thread Reconcile poundforce w/slug and lbmass.The standard way to calibrate a spring scale (including scales that use load cells) involves standard reference masses. e.g. You put a...
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jbriggs444 reacted to Herman Trivilino's post in the thread Reconcile poundforce w/slug and lbmass with Like.
Which is illegal if you're using the scale for commerce. Buyers would benefit, but sellers would lose money. An unsatisfactory...
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jbriggs444 reacted to Chestermiller's post in the thread Reconcile poundforce w/slug and lbmass with Like.
No. The 32.2 is fixed. And the measured force at the equator would be < 1 lb.
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jbriggs444 reacted to gmax137's post in the thread B Energy transfer water > air in a greenhouse with Like.
This can be a rather complicated problem to work out from first principles. I would start by looking for technical info from greenhouse...
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as is asking to guess a woman's age :wink: :wink: EDIT Ohhh I just noticed the typo of the person who originally noticed it I just...
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jbriggs444 replied to the thread Collection of Lame Jokes.Yes, though I had in mind that pretty much every bomb is more diffuse after detonation than before.
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jbriggs444 replied to the thread Collection of Lame Jokes.I would think that a diffuse bomb is something to avoid.
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jbriggs444 reacted to Dale's post in the thread B Can an expanding EM be quantized: E=mc^2? with Like.
Yes. That is the only kind of photon that exists. They can (e.g. a diverging lens). They don’t always (e.g. a converging lens). Radio...
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jbriggs444 replied to the thread Reconcile poundforce w/slug and lbmass.You may want to read about geometrized units. Indeed, in this system Newton's universal gravitational constant ##G = 1##. I'd mentioned...