The kinetic energy is
and the height of the building doesn't matter at all.
joules
Magnets are attracted when each of the different sides, most commonly known as "North" and "South", are facing each other. They repel when North and North, or South and South are facing each other.
In order to describe motion along a straight line, you must state the speed and direction of the motion. Those two quantities, together, comprise what's known as "velocity".
No, because the distance-time would show a constant velocity but the velocity-time graph shows an increasing velocity.
The electromagnetic force, and the gravitational force<span>.
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