What would be the acceleration in a bus moving with uniform velocity and why​

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

Arunner is training for an upcoming marathon by running around a 100-m-diameter circular track at constant speed. let a coordinate system have its origin at the center of the circle with the x-axis pointing east and the y-axis north. the runner starts at (x, y) = (50 m, 0 m) and runs 2.5 times around the track in a clockwise direction.

Write down two additional questions about earth's magnetic field that will make your presentation more informative.