Recent content by Zvaigzdute

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    Calculating Electric Field of Two Point Charges

    Homework Statement A point charge of -7e-6 C is located at x = 3 m, y = -2 m. A second point charge of 12e-6 C is located at x = 1 m, y = 3 m. Homework Equations The Attempt at a Solution Dq1 = sqrt(20) Dq2 = sqrt (13) E1 + E2= k(-7e-6)/20 + k(-7e-6)/20 = 11444.96 N/C...
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    Where Does an Electron Reach Equilibrium Between Two Charges?

    Homework Statement A point charge of -1.5 mu or micro CC is located at the origin. A second point charge of 13 mu or micro CC is at x = 1 m, y = 0.5 m. Find the x and y coordinates of the position at which an electron would be in equilibrium. Homework Equations The Attempt at a...
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    Use partial fractions to integrate x^3/x^3+1

    Use partial fractions to integrate x^3/(x^3+1)The Attempt at a Solution \int x^{3}/(x^{3}+1) dx Homework Statement Homework Equations The Attempt at a Solution \int x^{3}/x^{3}+1 dx I know that first i have to perform long division but i am at a loss how to do this THanks
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    How to Calculate the Effusion Rate of Oxygen from a Balloon?

    Homework Statement Suppose we make a circular hole 2 millimeter in diameter in a balloon. Calculate the initial rate at which oxygen escapes through the hole (at 0° C), in number of oxygen atoms leaving the balloon per second. Homework Equations 1/4 n*A*v The Attempt at a Solution...
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    Undergrad What is the correct way to find the indefinite integral of e^(6x)/(e^(6x)+6)?

    All of my calculus homework is submitted online to Web assign, and the website says that this is wrong. I cannot see where I may have made a mistake, and I was wondering if somebody could point it out, and show me how to get to the right answer
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    Undergrad What is the correct way to find the indefinite integral of e^(6x)/(e^(6x)+6)?

    Hi I have to find the indefinete integral of e^(6x)/(e^(6x)+6)*dx And I get 1/6*(ln(e^6x+6)) +C What am I doing wrong? Thank you
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    How Are the Masses of Binary Stars Calculated?

    Homework Statement (a) About half of the visible "stars" are actually binary star systems, two stars that orbit each other with no other objects nearby. Consider the motion of the center of mass of a binary star system. For a particular binary star system, telescopic observations repeated...
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    Total kinetic energy of two protons

    Yes thank you very much! Wow that was really stupid of me
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    Total kinetic energy of two protons

    Homework Statement Two protons are held fixed at a distance of 3 angstroms (3 x 10-10 m) from one another. The protons have a charge of +1.6 x 10-19 C. After they are released they repel each other and fly apart and each acquires some kinetic energy. What is the final total kinetic energy...