Recent content by rbailey5

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    Ao frustrating find the tension

    ao frustrating...find the tension Homework Statement A 1880 N uniform boom is supported by a cable as shown. The boom is pivoted at the bottom, and a 1920 N object hangs from its end. The boom has a length of 23 m and is at an angle of 54 above the horizontal. A support cable is...
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    How to Solve the Differential Equation x'' - x = t sin(t)?

    Homework Statement x(t)^double prime-x(t)=tsint Homework Equations The Attempt at a Solution in this case would I start this as x=t(A(2)+A(1))sint or do i also have to use the cos which makes it x=t(A(2)+A(1))sint+t(B(2)+B(1))cost?
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    Solving for Particular Solution in a Differential Equation

    I got A=3, B=-12, and C=24 does that look right?
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    Solving for Particular Solution in a Differential Equation

    Homework Statement determine the particular solution for the differential equation 2x^double prime+x=3t^2 Homework Equations The Attempt at a Solution since F(t)=3t^2 I used At^2+Bt+C and the first derivative is 2A+B plugging back in I get At^2+(4A+B)t+(2B+C)=3t^2 is this...
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    Solving Probability w/in 1 STD: Stats Problem Homework

    Homework Statement I am given a table of x and Probability of x an I have calculated the standard deviation and the variance. Homework Equations The Attempt at a Solution from here how do I calculate the probability that a value is within one standard deviation
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    Solving Second Order Differential Equations with Initial Value Problem

    Homework Statement I have got the diff equ problem solved out to y(t)=Ce^-t*cos4t+Ce^-t*sin4tHomework Equations now I have to solve for the IVP and the values are y(0)=1, yprime(0)=-1The Attempt at a Solution I believe for the first part I just plug in the y(0)=1 which results in the e^-t...
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    Homogenous differential equation

    [b]1. Homework Statement [/b so I am given a known homogeneous differential equation dy/dx=(y^2+x*sqrt(x^2+y^2))/xy Homework Equations now I know that you have to separate into some form of y/x which then you can change into v and solve the differential equation but I am having trouble...
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    Calculating the spring constant involving energy

    sweet thanks!
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    Calculating the spring constant involving energy

    ok so you get -(mg(h+x)*2)/x^2=k, -(2*.142*9.8*(.622+.435501)/.435501^2=k
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    Calculating the spring constant involving energy

    Homework Statement A 142 g ball is dropped from a height of 62.2 cm above a spring of negligible mass. The ball compresses the spring to a maximum displacement of 4.35501 cm. acceleration due to gravity is 9.8. Calculate the the spring force constant K. Homework Equations Hooke's law...