The bar graph shows the cost per megawatt-hour comparison of various renewable and nonrenewable energy sources in the united states. the blue portion of the bars represents the cost of electricity. the red portion represents the additional system costs of harnessing that type of energy. systems costs may include equipment expenses and costs of connection to a power grid. based on the graph, compare and contrast the total cost of renewable and nonrenewable energy sources. explain what might account for the differences in cost. do additional research as necessary.

Select light for the type of wave, adjust the wavelength so that the light is red, and increase the amplitude of the light to the max. then, select the start button at the source location to begin producing the waves. light is a form of electromagnetic wave, containing oscillating electric and magnetic fields. the wave amplitude detector mentioned above shows how the electric field oscillates in time at the location of the probe. the amplitude of the wave at the location of the probe is equal to the maximum electric field measured. how does the amplitude of the wave depend on the distance from the source?