An electric field of 3x10^16 n/c is needed to create a spark in the air. if the charged particles in the field are separated by a distance of 1mm how many coulombs of charge are needed for a spark (round to the nearest whole number)

According to social exchange theory, altruistic behaviors benefit the individual who performs them.

Apossible explanation for a set of facts that can be tested by further investigation is called

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.