Athlete's foot is caused by a microscopic fungus that lives on dead tissue of the hair, toenails, and outer skin layers. There are at least four kinds of fungus that can cause athlete's foot.
Work. In order to accomplish work on an object there must be a force exerted on the object and it must move in the direction of the force. Energy is required to do work and the basic SI unit of energy is the joule, the amount of energy required to exert a force of 1 Newton through a distance of 1 meter (1 joule = 1 newton meter).
General knowledge, as well as knowledge about the unique situation, is necessary for. effective social work practice. 7. We use a number of ways to try to understand human behavior, but we draw heavily on. two interrelated rigorous and systematic ways of building general knowledge:theory and. empirical research.