Recent content by SsUeSbIaEs

This is probably a real easy problem but I can not get this problem right for my life, so would someone please help me out here :redface: A 9m beam of mass 300 kg extends over a ledge, the beam is not attatched, but simply rests on the surface. A 75 kg student intends to position the beam...

Inertia and Center of Mass?? I'm a bit confused about finding the moments of Inertia for objects, I know I=Icm+MD^2 but what exactly is D, is it the distance from the Center of Mass to the pivot point, can someone please explain this to me? :confused:

Thanks that helped a lot!

Can someone please help me with this problem, a hint, anything something? A girl throws a stick with a length of 0:25 m and a mass of 0.53 kg into the air in such a way that the center of mass rises vertically. At the moment it leaves her hand, the stick is horizontal and the speed of the...

Thanks, that helps A LOT!

I had a question on my HW, but my professor has yet to go over g's and the textbook I have has absolutely nothing about them neither. The question asks: You want to design a large, permanent space station so that no arti¯cial gravity is neces- sary. You decide to shape it like a large...

I don't know I saw it on another website I didn't understand it, that's kinda why I am asking on the forum to see if it was right??

How would I calculate the g's felt? I thought it was centripetal acceleration divided by gravitational acceleration, then you add 1, is this right at all??

Ugh!? I don't know what your talking about, I thought I would use: .5m( (.7*c)^2-(.5*c)^2) c= the speed of light I was also told an equation like m^2c^2((1/sqrt(1-(v^2/c^2)))-1), but I kept geting zero for my answer and the actual answer is like 3.69??e-11, but I do not know how...

Can some one help me out here, I have tried using several different methods but I still don't know what I am doing wrong. The question is: A proton in a high energy accelerator moves w/a speed of 0.5c, use the work-energy theorem to find the work required to increase its speed to 0.7c...

I'm retarded I was thinking it was that simple, but I thought nah. Thanks I think.

I have to questions concerning air resistance. Can someone please help me?! A 252 N bag of nails falls at its terminal speed. How much air resistance acts on the nails?

THANKYOUTHANKYOU THANKYOU Thank you so much that makes a lot of sense!

THANKYOUTHANKYOU THANKYOU Thank you so much that makes a lot of sense!

I need help writing the equations.