Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Physics
Physics
Problem
Using
G
=
6.67
×
10
−
11
N
m
2
/kg
2
G = 6.67\times10^{-11}\,\text{N\,m}^2\text{/kg}^2
G
=
6.67
×
1
0
−
11
N
m
2
/kg
2
,
k
=
9.0
×
10
9
N
m
2
/C
2
k = 9.0\times10^{9}\,\text{N\,m}^2\text{/C}^2
k
=
9.0
×
1
0
9
N
m
2
/C
2
, proton mass
m
p
=
1.67
×
10
−
27
kg
m_p = 1.67\times10^{-27}\,\text{kg}
m
p
=
1.67
×
1
0
−
27
kg
, proton charge
q
p
=
1.6
×
10
−
19
C
q_p = 1.6\times10^{-19}\,\text{C}
q
p
=
1.6
×
1
0
−
19
C
and separation
r
=
1.0
×
10
−
10
m
r = 1.0\times10^{-10}\,\text{m}
r
=
1.0
×
1
0
−
10
m
, find the order of magnitude of the ratio
F
em
F
grav
\dfrac{F_{\text{em}}}{F_{\text{grav}}}
F
grav
F
em
between two protons. a)
10
42
10^{42}
1
0
42
b)
10
35
10^{35}
1
0
35
c)
10
36
10^{36}
1
0
36
d)
10
28
10^{28}
1
0
28
Browse the problem library