PLEASE ANSWERRR THIS curtis drops a 2kg coconut from a 16 m high tree. determine the potential energy, kinetic energy, and speed of the coconut at each height. remember to use the idea of conservation of energy. the initial speed of the coconut is 0 m/s

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Achemistry student needs of 40ml diethylamine for an experiment. by consulting the crc handbook of chemistry and physics, the student discovers that the density of diethylamine is 0.7 . calculate the mass of diethylamine the student should weigh out. round your answer to significant digits.

Avolcano erupts next to a grassland area in a valley. a. describe three ways in which material released by the volcano could impact the grassland area. b. describe three ways in which the grassland ecosystem could recover after a volcanic eruption.

Glass has a hardness that is in the middle of the hardness scale. what is the hardness of glass?