Recent content by Ruzic

i just got 2x - 5y +6z = 0 our teacher said we can make z any number we want then solve which works for finding a normal to a plane but if i do that here everything just cancels out

Homework Statement The vector a = [2,-5,6] is given. Determine one vector that is perpendicular to a. Homework Equations Cross product or dot product The Attempt at a Solution I messed around with the dot product by making the right side 0 because cos 0 = 90 but i don't think i...

I'm from Canada, and it really isn't a big deal apparently people still use their phones and most websites say that this only happens when phones are within like 3cm of the machines, but i was asked to explain why phones are banned from hospitals soo idk that's what i got to do i guess lol

I've seen those websites but I'm looking for a more specific answer than any of those links provided. Like i said, i wanted to know exactly how this interference occurs and all the physics behind it, not just the fact that electromagnetic waves from cellphones make devices malfunction

I have to do a presentation on why cellphones are banned in hospitals, and I'm going to have to explain how electromagnetic interference from the waves a cellphone gives off can mess with medical equipment. Can someone please explain the physics behind this?