Recent content by evanlee

I was talking with a friend earlier today about the idea that at absolute zero, particles essentially stop moving. I know that this makes sense since temperature is defined as average kinetic energy, which, if this equals 0, implies no movement. That made me think, however, about the...

adding to my last post, if you are being asked to find the total displacement from the original launching point of the sphere, you will need to use the pythagorean theorem. We know that the sphere has fallen 1.1m in the y direction. By solving for d as described above (t = 0.47 s) we get d =...

The trick here is that it is being launched horizontally -- meaning all of the initial velocity is in the x direction. Since the object starts at a height of 1.1m, it must drop that distance. Notice that the only force acting on the sphere is gravity. When you look at the sphere's motion in...

Hey PrincePhoenix, I believe what your textbook is referring to is the idea of a Fourier Series. The mathematician and physicist derived a method with which it is possible to decompose any periodic function to a sum of basic periodic functions, namely sines and cosines. By manipulating the...

Thanks everyone for helping me figure out this problem. If I'm reading it correctly, it seems that if an object is accelerating at relativistic velocities, then time dilation (and all other effects) will be varying, just as the velocity is. That does make sense! Thanks again!

Hi! I'm new to the forum (although I've been reading posts for a while), so this is my first post. Anyway, I am studying electrical engineering and am taking my second semester of physics currently. I have been taught Special Relativity, and have a good grasp on the basic concepts. In all...