A stone is thrown vertically upward with an initial velocity of40 m/s. Taking g = 10 m/s2, find the maximum height reachedby the stone. What is the net displacement and the totaldistance covered by the stone?

When can a theory be modified if a new type of technology allows for new observations that raise new questions? a-immediately, while the questions about the theory are being asked b-after new hypotheses related to the theory are tested in experiments c-only after the new observations disprove all parts of the theory d-while scientists begin to think about how the theory could improve