Herman Trivilino's latest activity
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Herman Trivilino replied to the thread Graduate Does a moving particle count as a wave?.No. A theory is an attempt to describe the way Nature behaves. The words you use to describe that behavior have no effect on the theory... -
Herman Trivilino replied to the thread Undergrad Relativistic Uniform Circular Motion.You don't give a finite size to the electron. Last I checked the upper limit on the size was about ##10^{-18}## m.
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Herman Trivilino replied to the thread Undergrad Why is gravity a fictitious force?.The elevator in space is being accelerated by an external force. For example a rope is tied to the roof of the elevator and pulls on the...
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Herman Trivilino replied to the thread Graduate Aether equal to spacetime?.Spacetime is a geometric construct that is very useful to physicists in describing and predicting the way Nature behaves. The aether...
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Herman Trivilino replied to the thread Undergrad Different result with kinetic energy and momentum when a bullet hits a target.You mean the conservation laws give different results. Conservation of momentum is a purely dynamical relation. Conservation of energy...
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Herman Trivilino reacted to Baluncore's post in the thread Undergrad Measured Spectrum of Stopped Wood Organ Pipe Shows ALL Overtones with
Like.
The third harmonic, at 3f, is the perfect fifth, in the octave above the fundamental. If you refer 3f to the octave it falls in, then... -
Herman Trivilino replied to the thread High School Using "symmetry" to deduce final velocities of two colliding particles.If you swap ##m_1## with ##m_2## in the expressions for the final velocities those expressions will be unchanged. Note the grammatical...
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Herman Trivilino replied to the thread Undergrad Measured Spectrum of Stopped Wood Organ Pipe Shows ALL Overtones.Ideally, the microphone should be very close to the opening in the pipe. Blow softly (don't "overblow") in an anechoic environment. I...
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Herman Trivilino replied to the thread Undergrad Measured Spectrum of Stopped Wood Organ Pipe Shows ALL Overtones.Language of course differs. But I have always seen the language used in the following way: For a closed pipe the first overtone, for...
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Herman Trivilino replied to the thread Undergrad Why is the Lorentz Force always perpendicular to velocity?.Whether you call it the Lorentz force or the magnetic force is just a naming convention. But the fact that it's perpendicular to the...
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Herman Trivilino replied to the thread Looking for lab experiments for a High School Physics class.Who's in charge? Skills are something that they are taught, in this case by a teacher. Allowing them to do only what they "care" to do...
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What if you are deriving a general solution, not just for specific numbers? There is nothing to guess then, because some forces could...
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Herman Trivilino replied to the thread A very simple moments question.Because in problems like this we assume the rod is rigid. That is, it won’t bend. Due to ##\vec{D}## or any other force.
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Herman Trivilino replied to the thread A very simple moments question.It's an equilibrium situation so all the forces are "balanced" by other forces. That's what it means to have a net force of zero. Do...
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Herman Trivilino reacted to Steve4Physics's post in the thread A very simple moments question with Like.
Pre-retirement I marked physics exam' papers for Edexcel (and for others). Occasionally examination questions are found to be...