Recent content by nelsyeung

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    Does the concept of force apply to photons without a measurable mass?

    Oh sorry it suppose to be a statement that I don't understand does F = dp/dt still applies
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    Does the concept of force apply to photons without a measurable mass?

    Ok now leads me to a few more questions: 1. If gravity is considered as a force that pulls bodies together, but can it be considered as a force that bend space-time, which then allows bodies to fall into each other? 2. Many people talked about effective mass and rest mass, but since photons or...
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    Linear law with charging a capacitor

    ok thanks. its done now. But I want help with these two equations: I want to solve for t. V= -o.o357t + 5.3 V= 5.3(1-e^(-t/10)
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    Linear law with charging a capacitor

    Well i made the most retarded errors ever, i did try to plot ln(1-\frac{V}{V_{max}}) against t, but i done it to discharging table I've made. -_-' but anyway since I done it right now, I can't resolve the problem when V = Vmax, the answer can't be calculated. so from my table at 60 seconds I...
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    Does the concept of force apply to photons without a measurable mass?

    Don't worry now, I realize that I forgotten theory of relativity when I thought of this question. But I don't think light does create a gravitational field though, since if the mass of a photon is 0 then gm/r^2 must also equal 0
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    Does the concept of force apply to photons without a measurable mass?

    I really don't understand from m=m0/\gamma m0=/=0, surely since m0 is on the top of fraction and its 0; the answer must be 0. How did you get infinity? But yes its true that mass must be either infinite or 0 to actually move at the speed of light, that's why it requires infinite amount of...
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    Linear law with charging a capacitor

    eh? Well firstly I've tried that and it didn't work, but with linear law, I have to get an equation down to Y = mX + c first. Where Y and X can only be variables, so it can't attach to any constant, but I can't seem to do that. :( Can someone tell me is the capacitor charging equation actually...
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    Does the concept of force apply to photons without a measurable mass?

    I kinda understand what you are saying but, I don't quite get then how can gravity be calculated using gm/r^2 and also during the relativistic effect a particle will increases mass dramatically which causes the acceleration to slow down, so i thought there must be a clear link between mass and...
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    Find the force on the cable, beam, and pole

    First draw a force diagram, mark on all the forces, after that since its only three forces equilibrium so to use an equilibrium triangle is the easiest way to do this. With the triangle, just mark on everything then solve it using basic trig. I seen you made the mistake of thinking that it...
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    Does the concept of force apply to photons without a measurable mass?

    Been thinking about this for sometimes now, most people say photons doesn't have a mass, and in theory since photons travel the speed of light then it must either have no mass or always been traveling at the light. But if a photon doesn't have a mass then how can things such as black hole or...
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    Linear law with charging a capacitor

    I've started an experiment lately with charging a capacitor through a resistor, I wanted to prove that the equation of charging capacitor by using linear law, but it didn't quite work and needed help. This is what I've done: Equation of charging a capacitor: V = V_{max}(1-e^{\frac{-t}{RC}})...
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