1/(9.11x10^-28) = 1.1x10^27 electrons per gram.
if one electron is 1.6x10^-19c
(1.1x10^27)(1.6x10^-19) = 1.76x10^8 is one charge of a gram of electrons
Plugging it in...
(9x10^9)x(1.76x10^8)^2
-------------------------
(1000m)^2
answer = 1.584x10^12 CORRECTED...
Homework Statement
One electron has a mass of 9.11x10^-31 KG. Find the force 1.0 gram of electrons would exert on another 1.0g of electrons from 1.0 kilometer away
F = ?
Melectron = 9.11x10^-31 kg --> (0.01kg of electron = 9.11x10^-33 kg)
Electron Coloumb = 1.6x10^-19 C (ignoring the negative...
So instead of "Mg" just being "Mg". It is "Mgsin(30)"? Is that what you are trying to say? If I change that in my equation it works out?
If that is the case, waste no time to say... Would the horizontal axis on Mg also require a MgCos(30) to workout the force from the hinge in components?
Homework Statement
Find cord tension and force on the hinge on this beam given the following:
Picture of the equation (in attachments)
beam is 10 kg
beam is 8.0m longHomework Equations
[T=0
[F=0
[h2]The Attempt at a Solution[/h2]
Finding the Torque on the wire...
I attached my FBD I drew...
I emailed my teacher it is correct, rounded to 2 sig figs. Thanks for helping out! I'm on to beams at angles now so if I need any more help I shall ask on here :)
Just wondering, this is a physics forum with some advanced applications all over mathematics. Would physics 12 fit in this...
I understand that there is a Y component but I stopped after I saw FHx = 1622N
From my understanding... The answer should be 1637N (I had a friend who is into math, calculus and taking engineering in university see if I made an error after posting this?)
He got the same 1637N as me
[Fy=0...
Taking a physics 12 class in night school and he only gave us an example of a Beam and Wire question where the Wire was holding a Beam against a wall. The wire was at the end of the beam and holding a sign.
Using the methods taught, I have been able to understand the Torque = 0, but Forces get...