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March 29, 2015

Homework Help: science

Posted by Anonymous on Sunday, February 5, 2012 at 12:11am.

An object is dropped off of a 27 meter tall building.
How long is it in the air before it hits the ground?
To measure the height of a tree, a person throws a ball vertically upward, and takes 13 seconds to reach its maximum height which is exactly the height of the tree.
How tall is the tree?

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