A new nuclear power plant will use thorium as the fuel to produce energy. Thorium's atomic weight is 229 g/mol and the mass loss in the nuclear reaction process is 0.03 gmol used. The fuel that the plant will have access to contains 10% of pure thorium. The plant will produce 900 MW of electricity and will also produce 1800 MW of waste heat. What is the efficiency of the plant?

Electric field of the earth. the earth has a net electric charge that causes a field at points near its surface equal to 150 n> c and directed in toward the center of the earth. (a) what magnitude and sign of charge would a 60-kg human have to acquire to overcome his or her weight by the force exerted by the earth’s electric field? (b) what would be the force of repulsion between two people each with the charge calculated in part (a) and separated by a distance of 100 m? is use of the earth’s electric field a feasible means of flight? why or why not?