Recent content by Cookies?

Ok, umm these may sound like dumb questions, and I am sorry but here goes. (I think i have a lot of misconceptions) 1. If I push myself against a wall and exert a constant force, the wall will exert a reaction force against me and therefore net force = 0 and no motion. But if I throw myself...

Hi, I need this for part of a math project I'm working on. So as most of us know, e^x, when differentiated, is equal to e^x, hence it is its own derivative. Now, I could prove this quite easily with the Chain Rule, but my teacher said that this is predicated on too many assumptions (not sure...

A stone is dropped from the top of a building. Within the second before it hits the ground, it travels 1/5 of the building's height. Calculate the total height of the building. Been trying to formulate simultaneous equations but there just doesn't seem to be enough information and too many...

A question about the simplest of things: Based on the physics of sound, how can you hear someone through a closed door? I'm quite confused because someone once told me its was because the sound passes through the door; since its causing the air molecules to vibrate, when this vibration hits...