Recent content by evgeniy

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    Calculating Kinetic Energy Using the Work-Energy Theorem

    I see what you are saying. I kinda get it now. So I am supposed to find a potential at 8m. But... using the equation V = U/qo = 1/4(pi)(epsilon-naught) * q/r...r is the distance from the point charge q to the point at which the potential is evaluated right? But I do not know the value of a...
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    Calculating Kinetic Energy Using the Work-Energy Theorem

    Hi there, I am thinking about a problem here, A particle q produces an electric potential of 6.30E2 V at a distance of 1 m away. If a particle of charge Q=0.00300 C is released from rest at a distance of 8.00 m from q, what will be its kinetic energy after moving very far from q? My...
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    Electron in a uniform electric field.

    Okay I got it. But my final answer is 8.54 * 10^(-18), isn't it too small? Or am I correct?
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    Electron in a uniform electric field.

    First, am I correct on this: If an electron is accelerating upwards in a uniform electric field, then the electric field's direction is pointed opposite, or downwards, right? And to calculate the magnitude and direction of the electric field, I just use the formula E= k|q|/d^2...
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    Calculate Angular Frequency for Damping Motion with Mass-Spring System

    A mass spring with natural angular frequency w= 3.6rad/s is placed in an environment where there is a damping force proportional to its speed. If the amplitude is reduced to 0.35 times its initial value in 12.9 s, what is the angular frequency of the dampin motion? Can anyone help out with an...
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    Standing Waves help 30 mins left.

    are u saying to find wavelength first? what about the tension?
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    Standing Waves help 30 mins left.

    well it's kinda late now, and i got the answers here: 1) 1.70 2) 0.667 Hz Can anyone tell me how to get them at least so i know how to do them on the test?? (formulas may be)?
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    Standing Waves help 30 mins left.

    Standing Waves help! 30 mins left. Hello everyone who's here, so far I've been doing great on waves, but what the heck is standing eave? Here is a problem that I kinda get, but not completely: Two strings, with the same mass/length m oscillate with the same frequency f=2.00 Hz. The first...