Depending on circumstances, there are times when divers may wish to be positively, negatively or neutrally buoyant. True. False.

True

Explanation:

Buoyancy is the most important factors for divers. All they do underwater is to observe the life down there but they also have some other work. However, divers may want to be negatively buoyant when they want to go on deep exploration. When they reach a destination, they may want to observe and neutral buoyancy then will be useful. When they want to go back on surface, they’ll utilize positive buoyancy.

explanation:

as the height from which the ruler was dropped increased, the speed of the ruler at ryan's hand increased.