Recent content by pcjang

oops, last one, i meant to say phi is greater than or equal to pi/4 and phi is less than or equal to 0

Homework Statement I was studying for my finals, and then the only thing that I got stuck on was parameterizing a surface and finding the area of the surface. and my problem states that x2 + y2 + z2 = 4 and z \geq\sqrt{2} Homework Equations so when parameterizing a sphere, it comes...

Homework Statement Show that the time it takes a wave to propagate up the cable (cable which hangs vertically under its own weight) is t = 2\sqrt{L/g}, where L is the cable length. Homework Equations i think... v=\sqrt{F/\mu} The Attempt at a Solution i've been staring at this...