Recent content by pdrjuarez

I don't really know what 'p_k' this notation is supposed to be... could you clarify that please? So i don't get half of what you're saying pretty much, but I'll reply my best The probability that each parking space is empty or taken is 1/2, and each parking space is independent of each other...

Homework Statement There is a parking lot outside a building with n evenly spaced parking spaces that are numbered 1 through N with parking space #1 being closest to the entrance of the building, and parking space #n being the furthest away from the entrance to the building. A driver enters...

Homework Statement Three charges are arranged as shown. Find electric potential energy at reference point (the one that's circled) How much work would it take to bring in a charge of 1.25 µC from infinity to that point? Homework Equations V=kQ/r Eel=QV The Attempt at a...

ahhh, that makes so much sense now thank you :smile:

Homework Statement A uniform 12.0 m long ladder weighing 125 N rests against a smooth vertical wall. The bottom of the ladder makes an angle of 67 degrees with the floor. A bucket of paint with a mass of 14.0 kg rests on a rung, 7 m from the bottom end of the ladder. What is the frictional...

Homework Statement A spring with spring constant k is hanging from the ceiling, at equilibrium point. The length of the spring in equilibrium is h2. Then you hang a mass less string from the end of the spring, holding a mass m. The length of the string and the mass together equal y. The...

Homework Statement A 25.0 kg block slides down a 5.00 m ramp that is elevated at 36.0 degrees. The kinetic friction coeff. is 0.220. -What is the work done by friction as the block slides down the ramp? Ok, so as far as I know, work is achieved only if you apply a force on something and...