What happened to the giant landmass that Wegener described?
The pieces remained the same shape over time.
The pieces moved quickly to their current locations.
The pieces moved toward one another and created mountains.
The pieces broke apart and drifted away from one another over time.
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The objects are acted upon by only one force. gravity. mass times the acceleration of gravity (-9.81meters/second squared).

Since you have not included the experiment situation and the data, of course, i can not give you specific details about it. but i can you with this question.1) i will assume that the motion is projectile (parabolic) motion.2) yes, the horizontal distance depends on the horizontal velocity as, naming vx the horizontal velocity and t the time, it is: x = vx × t3) now, observe that the flight time depends on the vertical velocity as, naming voy the initial vertical velocity, t the time and y the vertical distance before reaching the ground: y = yo + voy×t - gt² / 2.the higher the initial vertical velocity (voy) the longer the object will be flying and so t will be higher in the equation for the horizontal distance.that explains the relationship between the horizontal distance and the horizontal velocity.

Ithink the answer for this is: an electromagnet is a magnet  with a soft metal core.