Acoal-fired plant generates 600 mw of electric power. the plant uses 4.8 × 106 kg of coal each day. the heat produced by the combustion of coal is 3.3 × 107 j/kg. the steam that drives the turbines is at a temperature of 300°c, and the exhaust water is at 37°c. (a) what is the overall efficiency of the plant for generating electric power

11. you want to calculate the displacement of an object thrown over a bridge. using -10 m/s2 for acceleration due to gravity, what would be the total displacement of the object if it took 8 seconds before hitting the water?

If anyone who can me with this hw? i would really appreciate it

4. now look at the green lines you created by connecting the three boiling point data points and the three melting point data points. for each of these lines, describe any trends you see. 5. locate the elements on your periodic table that you circled in green on your graph. what term or description would you use to identify these elements with respect to the periodic table? 7. using the room temperature line (orange line) and your periodic table, make lists that identify the state of matter (gas, liquid, or solid) in which each element you plotted exists at room temperature. explain your answers.