I'm not sure how to go about doing this. can someone ? i'll rate you the brainliest!

calculate the wavelength of the laser light for a) d = 1/500 mm and b) d = 1/1000 mm. use the modified “grating equation” given below:

nλ = d (x/l)

remember to keep all calculations in millimeters (mm) until the end and then convert your answer to nanometers (1 nm = 10‐6mm)

The subject option isn't available. the topic is earth science!suppose you are a city engineer whose job it is to explore how to use more renewable energy in your locality. 1. consider the resources in your city and select one of the following: - hydropower -solar power -wind power -geothermal power 2. prepare a pamphlet or multimedia presentation to convince a committee of citizens and local leaders that the renewable energy source you have selected is best for you locality. in your pamphlet or presentation include: - a discussion of the renewable energy source that is best for your town and why -a discussion of the advantages and disadvantages of this energy source -a discussion of why you think your city should use more of this energy source -how the use of renewable energy will impact your city -pictures and/or charts and tables to strengthen your arguments