Recent content by ChristopherJ

Homework Statement The problem is to calculate the mean molar mass of the reaktion below, which takes place in a combustion engine. C4H10 + z(0.79N2 + 0.21O2) → αH2O + βCO2 + γN2 where the molar masses for the different molecules/atoms are: MH2O = 18, MCO2 = 44, MN2 = 28, MO2 = 32, MC =...

I'm not sure I'm following. If the new h is the old h plus x, then I can perform the calculations twice and the second time just add x to h? Or how would the equation look like?

Okey, so you mean that h in mgh is the length of the cable plus x, i.e. h ist the distance from the point of release to where it comes to a stop? If I can't neglect that, how should I do the calculations then? Since x depends on h, which depends in x?

Hi, I'm designing a crane that is supposed to withstand forces due to a falling object attached to the crane with a non-elastic cable. I have some troubles to calculate what force that will be due to the falling object. I figured that one way is to simplify this system with a spring with...