Electric energy can be stored by what kind of charges

In the sport of parasailing, a person is attached to a rope being pulled by a boat while hanging from a parachute-like sail. a rider is towed at a constant speed by a rope that is at an angle of 15 ∘ from horizontal. the tension in the rope is 1900 n. the force of the sail on the rider is 30∘ from horizontal. what is the weight of the rider? express your answer with the appropriate units.

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

It is really hard for me right know