Physics
Magnetism in materials is due to

Circular motion of electrons
Protons at rest
Electrons at rest
All neutrons at rest

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Physics
The sensation of weightlessness in a spacecraft in an orbit is due to the

Presence of gravity outside but not inside the spacecraft
Fact that spacecraft in the orbit has no energy
Acceleration in the orbit which is equal to the acceleration due to gravity outside
Absence of gravity outside

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