Answer:
A) ρ=
B) μ=
C) v=
D)e=
Explanation:
A)
The magnetic field can be find knowing the current is the charge per second
β=
β= 8.75x10^{19}e*s
Electron density
ρ=
B)
μ=
μ
C)
The drift speed using last information found
D)
To compared the random thermal motion and the current's drift speed
Answer:
5501 kg/m^3
Explanation:
The value of g at the Earth's surface is
where G is the gravitational constant
M is the Earth's mass
is the Earth's radius
Solving the formula for M, we find the value of the Earth's mass:
The Earth's volume is (approximating the Earth to a perfect sphere)
So, the average density of the Earth is