A rocket is launched straight up with constant acceleration. four seconds after liftoff, a bolt falls off the side of the rocket. the bolt hits the ground 7.5 s later. what was the rocket's acceleration? (neglect air resistance.)

Suppose you plant a seed and observe that a tree of large mass grows from it. The tree achieves a final mass that changes very little for years afterward. which of the following is true about the tree. A Both anabolic and catabolic reactions took place in the seed and tree when it was young and growing but then all reactions stopped when the tree reached a stable mass. B Both anabolic and catabolic reactions took place in the seed and tree when it was young and growing and both continue now even though the tree reached a stable mass. C Only anabolic and catabolic reactions took place in the seed and tree when it was young and growing and only catabolic reactions continue now that the tree reached a stable mass D only catabolic reactions took place in the seed and tree when it was young and growing and only anabolic reactions continue now that the tree has reached a stable mass