The human body is a complex system. Which pair of systems below is most directly required to make the human body move? muscular and skeletal systems
circulatory and endocrine systems
excretory and respiratory systems
digestive and nervous systems

answer: a tank of height h is filled with water and sits on the ground. water squirts from a hole at a height y above the ground and has a range r. for two y values, 0 and h, r is zero. determine the value of y for which the range will be a maximum.

explanation:

answerca air mass;