sebuah tabung berisi gas monoatomik. kedalam tabung tersebut dipompakan gas uang sama sehingga tekanannya menjadi 3 kali semula. besarnya perubahan energi dalam gas tersebut jika suhunya tetap adalah​

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.