PeroK's latest activity
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PeroK reacted to DrChinese's post in the thread I Does Time-Symmetry Imply Retrocausality? How does the Quantum World Say “Maybe”? with
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Whoops! :smile: They most certainly do nothing of the kind. There’s no connection with entanglement swapping ("W") of the type in the... -
PeroK replied to the thread I Shape of wave function (probability distribution) of a single photon.There's no cop out, as you describe it. The Schrodinger equation is manifestly not covariant. Hence QM is a non-relativistic theory...
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PeroK replied to the thread B Simple mass/scale puzzle.You could define it as 20kg if you want, but then the force would be given by ##F = T/2##.
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PeroK replied to the thread I Shape of wave function (probability distribution) of a single photon.A single photon doesn't have a position-space wave-function. Basic QM is explicitly non-relativistic, so does not describe light.
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It appears in Paul G. Hewitt's famous "Next Time Questions". In the instructor's guide, which accompanies his Conceptual Physics...
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PeroK replied to the thread B Simple mass/scale puzzle.If the spring is stretched to the point where it shows ##10g## on the display, then it provides a ##10g## force at either end. That's...
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My response to that is that there is no need to The method outlined in post #10 leads to a quadratic equation in ##\cos\theta##. One...
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PeroK replied to the thread B Simple mass/scale puzzle.Newton's laws demand that a rope in equilibrium can only have one tension throughout. Unless it has intermediate contact points...
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PeroK replied to the thread Hello! It's nice to meet you!.:welcome:
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Hello! It's nice to meet you! I used to study with a few peers in Discord a few months back but got into a disagreement with my tutor...
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PeroK reacted to Dale's post in the thread B Time dilation for two clocks at different altitudes on Earth with Like.
The important thing is the gravitational potential. Yes, the mountain has some mass, but the top is still at a higher gravitational...
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PeroK reacted to phinds's post in the thread B Time dilation for two clocks at different altitudes on Earth with Like.
Good question, but the mass of the mountain is essentially zero compared to the mass of the earth, and the gravitational time dilation...
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PeroK replied to the thread B Simple mass/scale puzzle.Just to note that is the definition of tension. It's the force transmitted; not twice the force transmitted!
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Since the weight is stationary (i.e., not accelerating), the tension pulling up on the weight must exactly balance the gravitational...
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PeroK replied to the thread Dynamics of Circular Motion.There's definitely no need to calculate the normal constraining force. We already know the acceleration.