In an industrial setting, process steam has been found to be normally distributed with an average value of 25,000 pounds per hour. there is a(n) 80% probability that steam flow lies between 20,000 and 30,000 pounds per hour. what is the variance of the steam flow?

Which configuration would produce an electric current? a) rotate a coil of copper wire between two magnets. b) connect a wire between a copper and zinc strip sitting in a beaker of water. c) connect a wire to the (+) positive end of a battery and the other end to a light bulb. d) connect a wire to the negative end of a battery and the other end to a light bulb.

Chemical energy is a form of energy. a. heat b. kinetic c. potential d. electromagnetic

Which are advantages of renewable resources? check all that apply. renewable energy supplies are completely reliable everywhere. some renewable resources will never be used up. little or no waste is produced by renewable resource plants. electricity can be generated in large quantities. many renewable energy facilities have lower operating costs.