Recent content by reaiy

a) use kinematic equations you know that it falls a distance (H - L) so use the (v_final)^2 = (v_initial)^2 + 2*a*d where v_initial is 0 and a is acceleration which equals g (gravity), d distance (v_final) = sqrt(2*g*(H-L)) b) use the the eq L = I*(omega, which i will use as 'w') so w =...

They way they did it is using the maclaurin series expansion. basically, this coefficient is defined as [the nth derivative of f(0)] divided by [n factorial] your book should explain how this is derived, but basically it deals with taking the derivative many times so terms disappearHere is a...

so the power series representation of cos(x) is sum_(k=0 to infinity) (-1)^k *x^(2k)/(2k)! So the first few terms are cos(x) = 1-x^2/2!+x^4/4!-x^6/6!+x^8/x!-x^10/10! Now for cos(x^2), put x^2 in for every x cos(x^2) = 1-(x^2)^2/2!+(x^2)^4/4!-(x^2)^6/6!+(x^2)^8/x!-(x^2)^10/10...

NVM I GET HOW TO DO I TNOW Homework Statement "The region bounded by the graphs of y = \frac{x}{\sqrt{x^2+25}} , y = 0, and x = 5 is revolved about the y-axis. Find the volume of the resulting solid."Homework Equations The only way i see to do this right now is to use shells, and the...