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  1. Confusing definition of proper time – which is correct?

    Dec 4, 2019 · The time that elapses on a single clock is the proper time for that clock. If a clock moves between two stationary clocks, the proper time it measures will be different from the …

  2. Why is "work done/time taken" correct over "force × velocity" as a ...

    Aug 9, 2021 · 28 Both seem to be correct, as another answer also points out. Meaning, both formulas can be used to calculate power. But the fundamental definition of power is the latter, …

  3. What is the correct formulation of Newton's Second Law of Motion?

    Apr 9, 2024 · Wikipedia states that Newton's second law of motion is: At any instant of time, the net force on a body is equal to the body's acceleration multiplied by its mass or, equivalently, …

  4. kinematics - How to determine the correct time using quadratic ...

    Aug 1, 2020 · Time can be calculated from a modified kinematics quadratic formula using the initial velocity, displacement, and acceleration. However, the acceleration vector isn't limited to …

  5. If Julian Barbour is Correct, is the Speed of Light Special?

    Has Barbour theorized publicly about the special place in Einstein's theory for the speed of light? In Barbour's theories, is the speed of light some mystical breakpoint in the laws of physics, …

  6. What actually is impulse? - Physics Stack Exchange

    Sep 18, 2022 · In my textbook it is mentioned that “impulse is used to get an idea of about the change in dynamical state of a moving particle”,but what does impulse actually mean?

  7. electromagnetism - Can you charge a capacitor with only voltage ...

    Mar 26, 2023 · It's not correct that current and voltage are mutually exclusive in a capacitor. In an alternating-current circuit, there are only two brief instants where the current is zero: while it is …

  8. Is the traditional explanation of why moving clocks run slow …

    0 Time dilation is widely misconceived and many of the explanations of it are simply misguided. The common misconception is that clocks slow down in some absolute sense when they move …

  9. Is my understanding of the double-slit experiment correct?

    Dec 24, 2021 · Here is a description of the famous Tonomura double slit experiment one electron at a time The electrons leave the footprint of a particle, one at a time. The accumulations of …

  10. Einstein gravity versus Newton's gravity - Physics Stack Exchange

    Mar 20, 2013 · Without that force (gravity) objects will continue in a straight line. Where Newton's idea of Gravity is 3D space with Time a constant, Einstein conceived of 4D space -- called …