hutchphd's latest activity
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hutchphd replied to the thread B Simple mass/scale puzzle.Static means static. This is an idealization but well defined and not a "fuzzy" force of some weird character. So what is an "active... -
Well I can't say I didn't ask for that... .
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So far nobody formalized it, so let it be me. Let me denote the mass on the left as ##m_1## and the mass on the right as ##m_2##. The...
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The tension in the string is the result of one end fixed and the other end under force. The nature of the fixing of one end is...
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Consider the drawing shown on the right. The tension in the left string is equal to the weight, T = 100 N because the mass is at rest...
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It isn't an intuitive thing. It's that the question of how the scale is labelled is arbitrary (edit: or perhaps "conventional" is a...
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Fer cryin out loud...
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Third Law Pairs never act on the same object. String pulls on scale, scale pulls on string. That's a Third Law Pair. The forces acting...
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hutchphd replied to the thread B Simple mass/scale puzzle.Here is the formal solution: All is static Draw a free body diagram for the hook. There are two forces on the hook, the Tension in...
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Suppose you eliminate the pulley on the left and tie the cable to a fixed block resting on the table top, as shown in the figure below...
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hutchphd replied to the thread B Simple mass/scale puzzle.I have to ask pointedly what could be more elegant and direct than " take a big old wad of glue and splooge one of the pulleys to the...
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hutchphd reacted to sophiecentaur's post in the thread I Energy of Electromagnetic Waves in Destructive Interference with
Like.
Energy is not 'transferred'. The Airy Disc is just a diffraction pattern which is formed by contributions from all parts of what would... -
hutchphd reacted to Ibix's post in the thread I Topic about physics axioms, theory, laws etc.. with
Haha.
The late, great Sir Terry Pratchett hypothesised the existence of queons and kingons, particles that carry monarchy, and their... -
hutchphd reacted to Dale's post in the thread I Topic about physics axioms, theory, laws etc.. with Like.
EM waves can cause things. If there is a finite invariant speed then anything massless travels at that invariant speed. If there is an...
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hutchphd reacted to kuruman's post in the thread B Why Does Hooke's Law Use a Negative Sign in Scalar Form? with Like.
One has to recognize that translating the world around us into mathematical equations is an unnatural act to most people. When novices...