proton providing the centripetal force. According to Newton’s second law,
F = mv
2
/
r
,
where
F
is the magnitude of the force,
v
is the speed of the proton, and
r
is the radius of
its orbit, essentially the same as the radius of the sphere. The magnitude of the force on
the proton is
F = eq
/4
πε
0
r
2
, where
q
is the magnitude of the charge on the sphere. Thus,
2
2
0
1
4
eq
mv
r
r
ε
=
π
so
(
)(
)
(
)
(
)(
)
2
27
5
2
9
0
9
2
2
9
1.67
10
kg
3.00
10
m/s
0.0100 m
4
1.04
10
C.
8.99
10
This is the end of the preview.
Sign up
to
access the rest of the document.
 Spring '10
 Rebello,NobelS
 Proton, Circular Motion, Force, Electric charge, 105 m/s, 27 kg, 0.0100 M

Click to edit the document details