For example, if a person pulls on a rope with a force of 80 n and another person pulls on the same rope in the opposite direction with a force of 80 n, the vector sum of the two forces is zero and the system is in equilibrium.
The Most Expensive Fish in the World bluefin tuna. The most expensive fish that was caught off the coast of northern Japan, was among 570 put up for auction. Japan is the worldâs biggest consumer of seafood, with Japanese eating 80% of the Atlantic and Pacific bluefins caught. The two tuna species are the most sought after by sushi-lovers.
Pet fish owners, collectors and marine life enthusiasts will want to own one of these 11 most expensive tropical fish in the world. Fish are one of the easier pets to own as they donât cost too much time and money to take care of.