Recent content by DR33

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    How Does Charge Distribution Affect Fields and Energy in Nested Conductors?

    D = Electric Flux Density P = Dipole Moment per unit Volume
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    How Does Charge Distribution Affect Fields and Energy in Nested Conductors?

    Here's the problem that I have been trying to solve: A solid conducting sphere of radius 20cm is concentrically placed inside a spherical shell of inner radius 30 cm and outer radius 40cm. A Charge of 20uC is placed on the inner sphere, and a charge of -10uC is placed on the outer conductor...
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    Troubleshooting Integration: Solving \int x cos5x dx

    sorry, I couldn't get the symbols working: . . . . . . . . . . ok here it is. The answer should be 1/5xsin5x + 1/25cos5x + C First you use: u = x du = dx dv = cos5x dx v = 1/5sinx dx and now you use the integral by parts: uv - \int \vdu\ = 1/5xsin5x - \int \1/5sin5x \ dx...
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    Troubleshooting Integration: Solving \int x cos5x dx

    ok here it is. The answer should be 1/5xsin5x + 1/25cos5x + C First you use: u = x du = dx dv = cos5x dx v = 1/5sinx dx and now you use the integral by parts: uv - \int \vdu\ = 1/5xsin5x - \int \1/5sin5x \ dx u take the 1/5 (constant out the integral) --> 1/5xsin5x - 1/5 \int...
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    Troubleshooting Integration: Solving \int x cos5x dx

    ok here it is. The answer should be 1/5xsin5x + 1/25 cos5x + C First you use: u = x du = dx dv = cos5x dx v = 1/5sinx dx and now you use the integral by parts: uv - \int vdu = 1/5xsin5x - \int 1/5sin5xdx u take the 1/5...
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    Electric Potential: Help Solving 500nC & -600nC Charge Problem

    Hi, I've tried this # for so long, and still, I can't figure it out. Here it is: A charge of 500nC is situated at the origin. Determine the amount of energy released in bringing a charge of -600 nC from infinity to a ditance of 1mm from the fixed charge. I've tried using in first place the...
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    Circular Movement: Understanding m = 0.4Kg - Helpful Picture Included!

    we're looking for the tension in the cables.. I forgot
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    How can I solve the problem of circular movement with a 0.4 Kg object?

    Sorry, I just realized it's in wrong sec. u can still reply :)
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    How can I solve the problem of circular movement with a 0.4 Kg object?

    Can anyone help me with this problem please.. I included the picture of the problem below.. m = 0.4 Kg
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    Circular Movement: Understanding m = 0.4Kg - Helpful Picture Included!

    Hi can anyone help me with this problem.. Picture is included.. I am kinda lost.. thank you so much m = 0.4Kg
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    Range of Tennis Ball Thrown from Ground: 15 m/s

    Thank so much.. I just made a fool of myself when I think about it again :p L8er
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    Range of Tennis Ball Thrown from Ground: 15 m/s

    Answer is 90.0m.. I just don't know how to get to it??
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    Range of Tennis Ball Thrown from Ground: 15 m/s

    a tennis ball is thrown from the ground. 3 secs later, Vx = 15 m/s (horizontal). Determine the range.
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    Kinematics of a thrown rock. Calculate speed

    n/m, i used 4.9.. wow, thanks man I appreciate l8er
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