Recent content by BlueCardBird

The spring has no requirements and as for the loop I am not aware of that, to my knowledge its just Fc=m(v^2/r) and you can find the radius that way.

Well for the collision the second marble must finish the track keep in mind that the goal is to have the most mechanical energy conserved from beginning to end. The compression of the spring and constant are decided by me but i don't have enough information to calculate it i don't know whether i...

Homework Statement So there's an assignment that I must complete which is to build a rollercoaster. The main problem is during the blueprint stage, I'm extremely confused with the calculations. This roller coaster must have one loop, a collision and 2 hills, the goal is the conserve the most...

Im wonder if its better to make a rollercoaster from cardstock or plastic tubes? In terms of energy conservation.

For the equation ε=ΔV/r, does this work only between 2 parallel plates or would it work for point charges as well?

Thanks sir! The help is much appreciated, with all the formulas in this unit, questions are quite confusing.

that kind of confuses me, sorry but could you elaborate on the symmetry?

So how would i calculate the distance between them if i could consider one electron?

Homework Statement Two electrons are fired at 3.5x10^6 m/s directly at each other a) calculate the smallest possible distance between the 2 electrons me=9.1x10^-31 Ve1=3.5x10^6 m/s qe=1.6x10^-19 C Homework Equations Em1=Em2 The Attempt at a Solution Tried using Em1=Em2...

Just wondering if this statement is true, GMm/R^2=v^2/R

wait but total energy at top of the cliff is mgh where height is 53 m though

Height of the cliff or bridge which is 53m

x=19m-11m mgh=1/2mv^2+1/2kx^2 subbed values in but didnt get right answer :S

Homework Statement A bungee jumper of mass 75 kg is standing on a platform 53m above the river. The length of the unstretched bungee cord is 11m. The spring constant of the cord is 65.5N/m. Calculate the jumpers speed at 19m below the bridge on the first fall. Homework Equations Em1=Em2...

Can anyone briefly explain to me when using conservation of energy to calculate for vertically mounted spring questions, why gravitational potential energy is neglected?