Electric potential energy of the pair of charges
How far from a -7.20 uCpoint charge must a2.30 uCpoint charge be placed for the electric potential energy of the pair of charges to be -0.400J(Take U to be zero when the charges have infinite separation.)
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Just before arriving to its destination it decelerates at -0.5g and comes to complete stop. what is the time it takes the train to make this 350 mile trip?
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How high should the tank be to ensure the ball reaches terminal velocity? Use the number twice as big from the previous question for height and calculate how much time it takes for the ball to reach the bottom of the tank.
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When the electron is 1.00x10^-10m from the alpha particle, it is moving directly away from the alpha particle at a speed of 3.00x10^6m/s. Calculate the distance between the electron and alpha particle when the electron comes momentarily to rest.
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