The mass would be the same
47kg on the moon as well
B
paired electrons spin in opposite directions cancelling their magnetic fields
Answer:
e) indicated that the speed of light is the same in all inertial reference frames.
Explanation:
In 18th century, many scientists believed that the light just like air and water needs a medium to travel. They called this medium <em>aether</em>. They believed that even the space is not empty and filled with aether.
Michelson and Morley tried to prove the presence and speed of this aether through an interference experiment in 1887. They made an interferometer in which light was emitted at various angles with respect to the supposed aether. Both along the flow and against the flow to see the difference in the speed of light. But they did not find no major difference and thus it became the first proof to disprove the theory of aether.
It thus proved that the speed of light remains same in all inertial frames.
Also, it became a base for the special theory of relativity by Einstein.
The force is greatest when the wire is perpendicular to the magnetic field.
In fact, the expression for the magnetic force is

where I is the current, L the length of the wire, B the magnetic field intensity and

is the angle between the directions of I and B.
We can see that F is maximum when

, so when

, so when the wire and the magnetic field are perpendicular to each other.