You’re investigating an oil spill for your state environmental protection agency. there’s a thin film of oil on water, and you know its refractive index is noil = 1.38. you shine white light vertically on the oil, and use a spectrometer to determine that the most strongly reflected wavelength is 580 nm. assuming first- order thin-film interference, what do you report for the thickness of the oil slick?

grav force prop 1/r squared 2r all squared is 4rsquared 1/4rsquared quartered

the small 0.38-kg slider is known to move from position a to position b along the vertical-plane slot. determine (a) the work done on the body by its weight and (b) the work done on the body by the spring. the distance r = 0.70 m, the spring modulus k = 154 n/m, and the unstretched length of the spring is 0.53 m

explanation:

-reverse card

prndulum needs thread, weight clock to time swings

the right answer is 0.3 meters per second