Recent content by Kirua

"Why don't you find a spring-type bathroom scale, hold it up against a wall, and push." Thanks!

e.g. pushing a door with x-lbs of resistance, assuming a person is exerting force perpendicular to the door, 36" from hinge. What is that x-lbs (max) an average adult could pushing with ease? Thanks

Does anyone know how to calculate the attraction strength of a permanent magnet to soft iron rod? http://www.kjmagnetics.com/proddetail.asp?prod=DY0Y0-N52 This is the permanent magnet. The cross sectional diameter of the iron rod is 12mm, separated by a distance at 1/4" and 1/2". Both...

Thanks for the answer! Now I have a much clearer picture in my head :)

lets say if the electromagnetic field of the solenoid is twice stronger than that of a permanent magnet. Both poles are still in the same direction, are aligned at their central axis. (the solenoid is wrapped around the magnet, so both have the same length). What would happen? Would the...

I have another question, what would happen if i used a cylindrical permanent magnet as the core for an electromagnet. Assuming the poles of the solenoid are in matching direction, will the magnet field be stronger? What happens if the poles of the solenoid are in conflicting directions with...

I found a data Sheet for a 47.75lb magnet: h-ttp://www.kjmagnetics.com/proddetail.asp?prod=DEX2 (p.s. is there an equation are to how they got those numbers?) I have a question, if the iron strip is placed in the middle of the 2 magnets, would the total force of attraction be doubled that...

I said "If" I have a electromagnet and a permanent magnet...

That's what I'm trying to find out. Also, I am short of equipment to perform an experiment. :(

If I have a cylindrical permanent magnet and an electromagnet with both poles facing each other, would the permanent magnet attract to the soft-iron core of the electromagnet? Assuming both magnets are restricted on an axis and have +/- equal strength (~375lb pull force, 2" cross sectional...

Thanks! this is really really useful :D

H!, I was wondering, if 1 ml of liquid propane (120 psi @ 70°F) is released into the atmosphere assume 14.696 psi (constant temperature), what will be the change in volume of what used to be 1 ml of liquid propane when changed to gas? From what i heard, the ratio for most gases expanded from...