Recent content by Ronerin

Are you at ETSU, Dr. Raz?! Basically its like they say Mass Air = Mass He + Mass Pb (air density)(V)=(He density)(V) + (Pb density)(4pi r^2)(.1/1000m) just use some algebra to move the stuff around and solve for r

Thanks a Ton! I think I can come up with an answer now :D. I didn't realize it was a theoretical R, and was getting very frustrated over my own ignorance! Thanks again!

So if I haven't been given the radius, how should I determine the Surface Area in order to find the Volume? Thx for All the Interest! :D

how using that do I solve for the radius? Sorry I need so much help and thanks for the interest! Im not sure of the weight of the lead, just the density of it, and the thickness...so lost.

I'm looking to determine what Volume will overcome the weight of the balloon itself minimally, but not sure about what steps to take to find it. Any clues?

Homework Statement So the question is what volume is required to make a lead spherical balloon float. It is filled with helium, the P=10^5 Pa, the Temp is 300K and the thickness of the lead balloon shell is .1mm Any ideas on sending me in a direction with this one?Homework Equations The...