Recent content by gaz3992

I'm sorry this is not really a school question i was just intrigued and did not now where else to ask about it. I have seen videos of these Gaussian guns and they appear to generate energy from nowhere, obviously impossibly. So what is the physics behind how they work?

Thanks i just needed conformation because i got to the answer partially using trial and error to find the right method and I'm impressed you managed to guess the exact next question on the paper.

Homework Statement A ball is thrown horizontal out of a window 18m above the ground. it is thrown horizontally at 5.0ms. show that it takes about 2 seconds to drop. Homework Equations S=ut+1/2at^2 The Attempt at a Solution u=0 a=9.8 s=18 18=0t+1/2*9.8t^2 36=9.8t^2...