PLEASE HELP!!

Student 1 drops a ball from a tower. Student 2 throws a ball down at 35 m/s from the same height and from the same tower. The student 2's ball takes one-quarter of the time of the dropped ball. What is the height of the tower? Use a=10.0m/s2 [down]

a high pressure system is a dense air mass that is usually cooler and drier than the surrounding air. a low pressure system is a less dense air mass that is usually wetter and warmer than the surrounding air.

in general, areas that experience high atmospheric pressure also experience fair weather. low pressure systems can cause the formation of clouds and storms. air usually flows from areas of high pressure to areas of low pressure..

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explanation:

physics means: "the branch of science concerned with the nature and properties of matter and energy. the subject matter of physics, distinguished from that of chemistry and biology, includes mechanics, heat, light and other radiation, sound, electricity, magnetism, and the structure of atoms."