jbriggs444's latest activity
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jbriggs444 replied to the thread B The Effect of Linear and Rotational Motion on Measured Weight.On the contrary, I would expect an effect for all circle sizes. The effect would gradually increase as the diameter of the circle... -
jbriggs444 replied to the thread Correct statement about siphon used to empty water tank.[Water] siphons stop working at about 0 C.
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jbriggs444 replied to the thread Correct statement about a reservoir with an outlet pipe.Which would mean that no water is exiting at the bottom.
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jbriggs444 replied to the thread Correct statement about a reservoir with an outlet pipe.If the water level is constant then the surface water is motionless. If it is supposed to be raining, then one needs to say so. The...
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jbriggs444 reacted to Chestermiller's post in the thread Correct statement about siphon used to empty water tank with
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At the maximum hight of the siphon, when cavitation occurs, the absolute pressure is not zero, It is equal to the vapor pressure of the... -
I wrote my PhD dissertation in the early 1980s using the TECO text editor and RUNOFF page formatter on my department's VAX 11/780, on...
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jbriggs444 reacted to PeroK's post in the thread B How to derive the 4 laws of motion using Calculus with Like.
You can't. The laws of motion are physical laws, independent of the foundations of mathematics. The laws can be stated in mathematical...
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jbriggs444 replied to the thread Correct statement about siphon used to empty water tank.I dislike this question. It is full of ambiguities. It appears that by "at maximum height" they mean the maximum height to which the...
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jbriggs444 reacted to A.T.'s post in the thread B A scenario of non-uniform circular motion with Like.
There are no perfect circular paths in nature. Even a passive object without the thrusters will not move on a perfect circle. So making...
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You could: a) State that you believe the question posed can’t be answered and briefly explain why. b) Propose a revision to make...
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jbriggs444 reacted to PAllen's post in the thread I Synchronizing clocks at different locations to measure speed of light with Like.
Note, an invariant fact is that if you move the clocks away and then back together with identical acceleration profile, they will be in...
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jbriggs444 replied to the thread I Synchronizing clocks at different locations to measure speed of light.As I understand things... Definition: two clocks are said to be "synchronized" if their readings when located at simultaneous events...
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jbriggs444 reacted to A.T.'s post in the thread I Is calling fictitious forces "not real" just about terminology? with Like.
Physists of the past have been brilliant at describing nature using math, but terrible at choosing the right words for it. Both naming...
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jbriggs444 replied to the thread How fast is the fly's shadow moving?.Yes, that passage is apt. An absolute bearing (or heading or course) would typically use a 360 degree rosette as described above with 0...