Every year, new records in track and field events are recorded. let's take a historic look back at some exciting races.

on august 20, 1989, in cologne, west germany, said aouita of morocco also established a world record when he ran the 3000. m run in 7.00 minutes, 29.45 seconds. what was his average speed (in m/s) for the race? remember to include your data, equation, and work when solving this problem.

These models show the electron structures of two different nonmetal elements. which element is likely more reactive, and why? element 1 is more reactive because it has fewer electron shells and is toward the top of its group on the periodic table. element 1 is more reactive because it has more electrons in its valence shell and is farther to the right on the periodic table. element 2 is more reactive because it does not have a valence shell close to the nucleus, so it will attract electrons. element 2 is more reactive because it does not have a full valence shell, so it will attract electrons.

Asled is being held at rest on a slope that makes an angle θ with the horizontal. after the sled is released, it slidesa distance d1 down the slope and then covers the distance d2 alongthe horizontal terrain before stopping. find the coefficient ofkinetic friction μk between the sled and the ground, assumingthat it is constant throughout the trip. find the coefficient of kinetic frictionμk. express your answer in terms of someor all of the variables d1, d2, and θ.

Acorporation gives out its profits as dividends paid to whom?