Super Mario runs across the screen of your Chromebook at a whopping speed of 8 cm per second. In the time that it takes Mr. Mel to tell you to stop playing Super Mario (which is about 3.5 seconds), how far did Mario move?

Hydroelectricity provides about 7 percent of the electricity generated in the united states. (a) explain how a hydroelectric power plant converts energy stored in water into electricity. (b) identify two factors that determine the amount of electricity that can be generated by an individual hydroelectricity power plant. (c) describe the two main types of land-based hydroelectric power plants. (d) describe two economic advantages and two environmental disadvantages of hydroelectricity.