Recent content by huk

An electron is moving in a plane that also contains a long straight current-carrying wire. The electron is heading at a 45° angle toward the wire, with a speed of 3.8 106 m/s, when it is 43 cm away. The electron reaches only as close as 1 cm, before being repelled away, always moving in the...

hey, Consider the initial value problem: y''+(gamma)y'+y=k(delta)(t-1), y(0)=0, y'(0)=0 where k is the magnitude of an impulse at t = 1 adn (gamma) is the damping coefficietnt(for resistence). Let (gamma)=1/2. find the value of k for which the response has a peak value of 2; call this...

I actually got it already. Sorry about it but thanks anyways. it was such a simple calculus problem....

A spring is stretched 6 inches by a mass that weighs 8 lb. The mass is attached to a dashpot mechanism that has a damping constant of 0.25 lb-sec/ft and is acted on by an external force of 4cos(2t) lb. a) Determine the steady-state response of this system b) If the given mass is replaced by...

I feel silly for ask you for help on this simple center of mass problem but i got wrong answers... Where is the center of mass of a uniform, L-shaped iron rod of sides X = 0.8 m and Y = 0.5 m, respectively? Take the corner to be at (x,y) = (0,0), with the X and Y sides along those axes...