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Atrajectory has an initial velocity of 1,000 meters per second, and 5 seconds later, it has a velocity of 500 meters per second. which is the acceleration of the trajectory?

These two elements threaten ecosystem biodiversity.

Select the correct answer. read the two excerpts. the first excerpt makes a reference to the second excerpt. in the first excerpt, what does the character tom mean when he makes a reference to the play hamlet in the last paragraph? a. tom is implying that shakespeare is his father’s favorite author. b. tom is explaining that his father considers tom to be a poor actor. c. tom is saying that his father enjoys having his children act in plays. d. tom is showing that he can easily recite any of shakespeare's plays. { need plz ]