Recent content by jfreak15

for a school project i have to design and make a prototype car that is able to keep a large egg safe from cracking after hitting a wall and 35 mph. it has to be relatively compact in that the whole car cannot be longer then 10" and about 6" wide. then after hitting the wall will also be tested...

Is there any maybe ac to dc converter that goes from 120v ac to like 25v dc?

no it's all sort of new to me.

what size resistor would i need? yeah i have been but none seem to be about using an ac wall supply. I just wan to know if it is possible to use ac power from the wall and try to do that.

I think the shorter more disk like shape is shorter for lifting the most weight but only with smooth surface.

yeah i thought about using that but would it still not be a short? and Do u have any idea how much weight it could hold... i want to make it as strong as possible and just wondering if it is possible to do it this way. thanks though to your question i don't know sorry.

electromagnet that plug into wall outlet? I am working on a project for science and and trying to make an electromagnet that will plug in a normal wall outlet (120v ac). I have been searching the internet for a way to do this and have found out very little. I am on a lower budget and want to...