jbriggs444's latest activity
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jbriggs444 reacted to sophiecentaur's post in the thread Undergrad Is calling fictitious forces "not real" just about terminology? with
Sad.
That was what attracted me to the thread because contributors seemed to assume that considering cause and effect would have to be a... -
jbriggs444 replied to the thread Undergrad Is calling fictitious forces "not real" just about terminology?.As I recall, your argument in this thread started out as an idea about pedagogy. That it was more helpful to accept student intuitions...
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jbriggs444 replied to the thread Cone on horizontal surface.The non slippery condition would dictate the path along which the cone rolls. It would also assure us that the motion along that path is...
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jbriggs444 reacted to DaveC426913's post in the thread High School How Does Constant Power Affect Rocket Acceleration in Space? with
Like.
The conversation got more and more generalized as we ostensibly got to the crux of the phenomenon. There was much discussion about power... -
jbriggs444 replied to the thread Undergrad Is calling fictitious forces "not real" just about terminology?.One does not tell the student that cause and effect do not exist. One tells the student that there is no causal relationship in the...
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jbriggs444 reacted to A.T.'s post in the thread Undergrad Is calling fictitious forces "not real" just about terminology? with Like.
Nobody is doing that. You can have thoughts about elves and unicorns when applying Newton's 3rd Law, if you like. But physics teaching...
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jbriggs444 reacted to A.T.'s post in the thread Undergrad Is calling fictitious forces "not real" just about terminology? with Like.
It's not the symmetry that requires forcing, because Newton's 3rd is already symmetrical. It's the fake asymmetry that is forced into it...
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jbriggs444 replied to the thread Chain falling out of a horizontal tube onto a table.Since this is your attitude, I am out. Live long and prosper.
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jbriggs444 replied to the thread Chain falling out of a horizontal tube onto a table.If you have something to say, say it. Do not say that you already said it. I am not going to go back to prior posts to try to tease out...
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jbriggs444 reacted to Baluncore's post in the thread Undergrad Calculate acceleration from power/torque graphs with Like.
That is due to the supported gear ratio selection, decided by the manufacturer. If you plot engine power against vehicle road speed...
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jbriggs444 reacted to A.T.'s post in the thread Undergrad Is calling fictitious forces "not real" just about terminology? with Like.
Sean Carroll discusses this in other contexts in his recent podcast around 1:54:00...
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jbriggs444 replied to the thread Chain falling out of a horizontal tube onto a table.Which scenario are you contemplating here? I made it quite clear that I was writing about scenario 3. In this scenario there is nothing...
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jbriggs444 replied to the thread Undergrad Calculate acceleration from power/torque graphs.The power and torque lines should cross at most once (discounting the edge cases end where both torque and power are zero). The choice...
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jbriggs444 replied to the thread Curving of gravitational field lines.As the graphic shown by both @PeroK and @kuruman suggests, the "field lines" in blue are perpendicular to the "equipotential surfaces"...