Imagine a hovering maglev train where the upward magnetic force suddenly becomes much stronger than the downward pull of gravity. What would be the immediate result?

The train would press down harder onto the track.

The train would accelerate upward, away from the track.

The train would stop moving forward along the track.

The train would remain perfectly stable and continue to hover at the same height.

What would happen to a hovering maglev train if the power to the magnets failed, making the upward magnetic force zero?

It would float higher into the air.

It would continue to hover in place.

It would start moving backward.

The book is too heavy to move, so no forces are acting on it.

The table pushes up on the book with a force equal to the downward pull of gravity.

Air pressure above the book is perfectly balanced by the air pressure below it.

The friction between the book and the table is what prevents it from moving up or down.

The upward lift force must be slightly greater than the downward force of gravity.

The only significant force acting on the pod is gravity.

The upward lift force and the downward force of gravity are equal in magnitude.

There are no vertical forces acting on the pod, only horizontal ones for movement.