Is this right? If not whats the answer

Work out sian speed for the first 30 minutes of her journey. give your answer in km/h.

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

Asmall object with mass 0.200 kg swings back and forth on the lower end of a light rope that is 3.00 m long. the upper end of the rope is attached to the ceiling. as the object swings through its lowest position, where the rope is vertical, the speed of the object is 5.80 m/s. at this point in the motion, what is the tension in the rope? (use g = 9.80 m/s2.)