Light falls on pair of slits 19.0 apart and 80.0 cm from a screen. The first-order bright band is 1.90 cm from the central bright band. What is the wavelength of the light ?

What should the power status of a circuit be when measuring resistance with an ohmmeter?

Petroleum contains energy. a. light b. kinetic c. chemical d. mechanical

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.