hi friend the earth spin at 1,000 in meters per hour
I hope it helped you
Answer:
Explanation:
given data
Radius of sphere 3.0 cm
charge Q = 2.0 m C
We know that maximum electric field is given as
electric field inside the sphere can be determine by using below relation
Answer:
22600 cm³ (3 s.f.)
Explanation:
Please see the attached picture for the full solution.
Answer:
Explanation:
I = Current = 500 kA
L = Length of wire = 180 m
m = Mass of train =
g = Acceleration due to gravity =
B = Magnetic field
The gravitational force and magnetic force will balance each other
The magnitude of the magnetic field needed to levitate the train is