Suppose the average speed of a cheetah were just over 24.0 what distance would the cheetah cover during 18.4

If the average speed of a Cheetah is exactly 24.0 centimeters per hour,
then the Cheetah would cover  73.6 millimeters in 18.4 minutes. 
(That's about 2.9 inches, or 0.0000457 of a mile.)

Perhaps you can see why the units are important in a Physics problem.

This is what i found on google “according to the collision theory, the following criteria must be met in order for a chemical reaction to occur: molecules must collide with sufficient energy, known as the activation energy, so that chemical bonds can break. molecules must collide with the proper orientation.” i hope this information you.