Why do skydivers use parachutes ???

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.

Drag each tile to the correct box. tiles bra i sequence

The voltage applied across a given parallel-plate capacitor is doubled. how is the energy stored in the capacitor affected?