Recent content by ccflyer

Hey eveyone, I have a concave mirror and an object x distance away from the mirror. I am wondering if anyone knows where you measure from in order to determine how far away the object is from the mirror. Is it from the object to the center of the concave mirror? Thanks, ccflyer

Hey everyone, Does anyone know what the kinetic coefficient of friction for pine on pine is? I am looking for the actual value in order to do some percent error calculations. Thanks, ccflyer

Hey thanks everyone for replying. I really do need to do the actual experiment for a lab grade, so just obtaining the value that someone else measured won't really work, but will help me find percent error (thanks andrevdh for those values). I think that I'll try to stay away from the spring...

"Little G" Lab Suggestions Hey everyone, My goal is to find the Acceleration due to gravity to five significant figures. I think that I will use a pendulum to do the lab with, but am looking for suggestions for what I should use to measure distances and/or time with. For measuring time...

alright, I get what you are saying, and I guess that makes sense, but would you be able to point me in the direction of a formula?

Hi everyone, I am trying to learn about electromagnets for a project I am working on and I need to know how much magnetic force (in Teslas) that I would need to lift a given weight. Would anyone be able to point out a formula that I would be able to use? Any help would be greatly...