Can someone answer this question? {for me: question 48}

The slope of a velocity time graph over any interval of time gives the during that interval

The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island

Aclarinetist, setting out for a performance, grabs his 3.350 kg clarinet case (including the clarinet) from the top of the piano and carries it through the air with an upward force of 24.65 n. find the case's vertical acceleration. indicate an upward acceleration as positive and a downward one as negative.