- #1
Fusilli_Jerry89
- 159
- 0
Homework Statement
What is the radius of the orbit of an electron traveling at 9.0E6 m/s around a zinc nucleus(which contains 30 protons)?
Homework Equations
F=(kQq)/r^2
F=QE
ac=v^2/r
Fnet=ma
The Attempt at a Solution
30 protons x 1.6E-19 = 4.8E-18 C
electron - 1.6E-19 C
F=ma
F=(9.11E-31)a
a=v^2/r
F=[(9.11E-31)(9.0E6)^2]/r
F=7.38E-17/r
(7.38E-17/r)=[(9.0E9)(1.6E-19)(4.8E-18)]/r^2
r=9.367E-11 m