At what point does a comet have the highest velocity?

Arock collection comes from which part of earth?

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

There are two-speed cameras, one in an are where the speed limit is 30 km/h and another where the speed limit is 50 km/h. in which will there be a smaller time interval between the photographs? explain your answer.