This motion is associated by mechanical means such as pumps, gravity or fans, to produce the movement of the fluid: a. free convection b. forced conduction c. forced convection d. radiation indoors

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Particles vibrate in a rigid structure and do not move relative to their neighbors.

28. which is not a reason that water is used to store spent fuel rods from nuclear power plants? water increases the speed of the chain reaction in the fuel rods. water protects nuclear power plant workers from the high temperature and radiation of the fuel rods. water acts as a radiation shield to reduce the radiation levels. water cools the spent rods. salts action