- #1
nicolas.ard
- 4
- 0
Hello, i have to solve the following problem, i have the result, but i can get the way to arrive to it.
This is the problem:
There are 2 spheres of copper, separated at 1 meter, each sphere have a weight of 1 Kg initially.
The problem want's to know how many electrons i need to transfer from one sphere to the other one, to get a attractive force between the both spheres of 1x10^4 Newtons.
The result it's 6.59x10^15 electrons
I planted the Coulomb equation, but it's don't work. (B it's the number of electrons to transfer)
[itex]Q_{1} = 2.7502*10^{26}electrons - B [/itex]
[itex]Q_{2} = 2.7502*10^{26}electrons + B [/itex]
[itex]1*10^{4}= \frac{Q_{1}*(-1.6)*10^19*Q_{2}*(-1.6)*10^19}{1^{2}}[/itex]
Greets from Argentina!
Nicolas
This is the problem:
There are 2 spheres of copper, separated at 1 meter, each sphere have a weight of 1 Kg initially.
The problem want's to know how many electrons i need to transfer from one sphere to the other one, to get a attractive force between the both spheres of 1x10^4 Newtons.
The result it's 6.59x10^15 electrons
I planted the Coulomb equation, but it's don't work. (B it's the number of electrons to transfer)
[itex]Q_{1} = 2.7502*10^{26}electrons - B [/itex]
[itex]Q_{2} = 2.7502*10^{26}electrons + B [/itex]
[itex]1*10^{4}= \frac{Q_{1}*(-1.6)*10^19*Q_{2}*(-1.6)*10^19}{1^{2}}[/itex]
Greets from Argentina!
Nicolas