Three discrete spectral lines occur at angles of 10.3°, 13.9°, and 15.0° in the first-order spectrum of a grating spectrometer. (assume that the light is incident normally on the gratings.) (a) if the grating has 3 640 slits/cm, what are the wavelengths of the light? (enter your answers from smallest to largest.) (b) at what angles are these lines found in the second-order spectrum? (enter your answers from smallest to largest.)

this is a good question! i'll do some research and come back when i have the answer!

the answer would be 32*f

the total distance that martina travels that day is

(distance from home to mom's office) plus (distance from mom's office to school)

plus (distance from school to library) plus (distance from library to friend's house)

plus (distance from friend's house to martina's house).

(we don't know what any of these distance actually is.)