Recent content by Nebozilla

You should know the energy of the combined mass and its conserved. If I'm reading it right you aren't given x since you are trying to find the maximum compression of the spring which is x.

Have you tried it? Try using conservation of energy and momentum.

You don't actually need to know k since you already know the velocity of the kid at the bottom with friction involved. You also know the kinetic energy of the kid at the bottom without friction.

Yep energy is a good idea :) Start by finding the potential energy of the system at rest. You know its at 30 degrees and its 2m long so by using simple trig you can find h, the height. With conservation of energy you know the bottom of the swing, its all kinetic energy so the potential energy at...

Force doesn't equal energy. Hope that helps haha :)

You do know k. F=kx. I am sure with k you know all you need with conservation of energy.

force diagrams yay! i remember those helped me understand what's was going on.

I think its because our perception of what the big bang was is what's confusing. It wasnt an explosion with a center but it was the expansion of space itself. Also you couldn't even find a center since there is no definite point of complete rest. Its all relative.

Solar winds from the newborn Sun pushed the lighter stuff out leaving all the terrestrial rocky planets and the gas giants outside. But its essentially collections of stuff that clumped together.

Actually I am in school. I guess I will go back tomorrow then? Whats so hard to grasp about the Big Bang happening everywhere since there was no universe before it? Its hard to picture but it makes perfect sense. So maybe...

Please do. I am done. I seriously thought this was a joke ...

Oh Peter its not just this forum...Go to any astronomer and just ask what they believe is the current best theory behind the universe's future. Your assumption could be possible if there WAS a center but there isn't. Period. Also the balloon's surface is suppose to represent 3D. With the raisin...

How CAN there be a center? The whole universe "exploded"...everywhere. The balloon or raisin bread analogy helps in understanding. If you make points all over the balloon and while its expanding, all points move away from each other the exact same amount so from any point it appears to be the...

How is there an outer universe or inner universe when there is no center to the universe? I don't understand what you mean that continued slowing accelerates seperation? Negative acceleration = positive acceleration? Oh is this sarcasm? lol! Hopefully this is just a joke...

Who cares about research?! We could float haha... look up Diamagnetic Levitation :)