Predict which elements make each absorption spectrum. This is due today and I have no clue how to do it. Moon one spectrum has three blank bars within the violet wavelength, one blank bar within the navy blue wavelength, three blank bars within the aqua blue, and one blank bar in the green wavelength. It also has one big blank bar within the yellow wavelength next to two blank bars within the orange wavelength and two blank bars within the red wavelength

You are the coordinator for a program that is going to take place at night in a rectangular amphitheater in the mountains. you will have no access to any electricity, but you must be able to illuminate the entire grounds. you know the intensity of the light from a lantern varies inversely as the square of the distance from the lantern. suppose the intensity is 90 when the distance is 5 m. a. write an equation to model the situation. b. solve for the constant of variation. c. write the equation to model the situation using the constant () of variation. d. you have been given lanterns with 40 light intensity. use your equation to solve for the distance from the lantern. e. you need to illuminate 225 km. how many meters do you need to light? f. how many lanterns will you need?