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1 answer
405 views

How do we know the creation and annihilation operators for angular momentum give rise to a complete basis?

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3 answers
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Does it take longer to melt one big piece of ice or many small pieces of ice?

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Why can't the electromagnetic duality transformation be expressed in terms of potentials?

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Faux Hamilton-Jacobi equation contrivance

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Torque on a rotating charged disc

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2 answers
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Which operator measures "energy", when unitary transformations don't change matrix elements, but they change time evolution?

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1 answer
72 views
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Pressure of liquid in a problem related to capillary tubes from 200 Puzzling problems in physics

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1k views

What is the name of the physics concept where water runs back under the edge of the roofing? Is it just surface tension?

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200 views

Is it possible to measure scalar potential difference with a voltmeter/oscilloscope?

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Can the double pendulum equations not be derived solely using Newtonian Mechanics (Newton's Laws of Motion)?

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Calculating new temperature of an object when air temperature changes

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Understanding Coriolis acceleration for high school students without calculus

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Relationship between flow and pressure gradient in a one-dimensional compressible fluid

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Is there a mathematical relationship between Legendre conjugates and Fourier conjugates?

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