×

# Categories

Homework Help Boards (University / College Level)

### Laboratory Help

Non-Homework Help Boards

×
top posters

### Support Us

If you found our community helpful, your small donation will continue to help us reach more students around the globe. You may also like us on Facebook or follow us on Twitter.
 Author kiojahlee • 20 hours ago Author mmk127 • One day ago Author Maxliz • One day ago Author Anonymous • One day ago Author mmk127 • One day ago
Note: You are not allowed to upload copyright material or provide links to sites hosting copyright files. Violators will have their topic deleted or locked.
Pages: 1  ...    Go Down
 Reply  |  New Topic  |  more
wrote...
Posts: 0
Credits: 50
 Rep: +21 0
2 years ago
 [Notes] - Mastering Physics Solutions (Chapter 23 - 28) For a more comfortable homework help experience, try HomeworkClinic.com. Enjoy Attached file(s) Read 76984 times 810 Replies
wrote...
Posts: 1
Credits: 55
 Rep: 0 0
2 years ago
 thanks
wrote...
Posts: 2
Credits: 55
 Rep: +1 0
2 years ago
 Thanks for the help.
wrote...
Posts: 1
Credits: 55
 Rep: 0 0
2 years ago
 Really good. Thanks.
wrote...
Posts: 1
Credits: 55
 Rep: 0 0
2 years ago
 Thanks
wrote...
Posts: 1
Credits: 55
 Rep: 0 0
2 years ago
 Thank you for this
wrote...
Posts: 1
Credits: 55
 Rep: 0 0
2 years ago
 How much work is needed to assemble an atomic nucleus containing three protons (such as Be) if we model it as an equilateral triangle of side  with a proton at each vertex? Assume the protons started from very far away.W=3.46*10^-13 J
wrote...
Posts: 4
Credits: 50
 Rep: +1 0
2 years ago
 Quote from: catherine.lag (2 years ago)How much work is needed to assemble an atomic nucleus containing three protons (such as Be) if we model it as an equilateral triangle of side  with a proton at each vertex? Assume the protons started from very far away.W=3.46*10^-13 JIt would be the sum of the potential energies of all possible pairs;W = 3kq^2/r = 34.56 x 10^-14 JIt takes no work to bring in the first proton.It takes kqq/r to bring in the 2nd proton.It takes kqq/r + kqq/r to bring in the 3rd proton.where "r" is the separation distance between the proton pairs.You can calculate these works by actually doing the work integral qE dr where E is the field of the protons in place and the integral is from infinity to final "r".Of course this is just electric work. It doesn't take into account nuclear force interactions or quantum spin-spin interactions. So its a "rough" model.
wrote...
Posts: 1
Credits: 55
 Rep: 0 0
2 years ago
 Thanks
wrote...
Posts: 1
Credits: 55
 Rep: 0 0
2 years ago
 thanks
wrote...
Posts: 1
Credits: 55
 Rep: 0 0
2 years ago
 thank you
wrote...
Posts: 1
Credits: 55
 Rep: 0 0
2 years ago
 thanks.
wrote...
Posts: 1
Credits: 55
 Rep: 0 0
2 years ago
 thanks
wrote...
Posts: 1
Credits: 55
 Rep: 0 0
2 years ago
 Thanks so much!
 Pages: 1 2 3 ... 58 »    Go Up Reply New Topic more
Related Topics
 1022 Replies Notes | Tutorials | Articles • Started by daniel91 • Views: 88665 • Last post by denny-hsieh (3 weeks ago) 39 Replies Notes | Tutorials | Articles • Started by robertling • Views: 7196 • Last post by agarrison4 (3 weeks ago) 1 Reply Physics and Astronomy • Started by Dani81 • Views: 3123 • Last post by gene24 (2 years ago) 1 Reply Physics and Astronomy • Started by morereece • Views: 2783 • Last post by bio_man (A year ago)