Recent content by ViresArcanum

hey guys, I've been experimenting with a pendulum and while doing the error discussion for my experiments i got stuck with the air resistance involved... I've used the formula to find the force applied by the air resistance to the pendulum and ended up with F=2,76*10^-5 *v^2 . (v= velocity of...

well, a=c and b=d since the opposing sides are equally long, the opposing angles have to be equal as well; since a=c, alpha=gamma these angle conditions are just normal rules for a regular parallelogram hope, this is less confusing now...

Homework Statement Given is a parallelogram which has diagonals of the length 7 (e) and 9 units (f). How big is its circumference? The sides are a,b,c,d; a being the bottom side, rest is anti-clockwise... alpha is the angle of a etc... Homework Equations no are given, i guess...