jbriggs444's latest activity
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jbriggs444 replied to the thread I What does equiprobable mean in the context of thermal motion?.Looking at your drawing here, those numbers are quite wrong. Where are you getting them? As I read the drawing, ##v_{1x}## is negative... -
jbriggs444 replied to the thread I What does equiprobable mean in the context of thermal motion?.Is this explanation verbatim from the book? Or is it your own interpretation? Either way, It is utterly incorrect. If you total...
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6 was scared of 7 because 7, 8, 9. But why did 7 ate 9?
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Instead of textbooks, go to the source. Newton's First Law as stated in the Principia: "Every body continues in its state of rest, or...
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I think that before reading Newton's Principia one should properly learn Newtonian mechanics from modern sources. Principia should be of...
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See post #2 where I said: It doesn't matter whether you start with "Young and Randall" or start with "Serway". You end up with the...
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For things moving free or at rest, Observe what the first law does best. It defines a key frame, Inertial by name, Where the second law...
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In newtonian physics, the 1st Law describes bodies that are not accelerating. There is no net external force acting on it. There...
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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
Like.
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...
