An oil tanker spills a large amount of oil (n=1.45) into the sea (n=1.33). (A) If you look down onto the oil spill from overhead, what predominant wavelength of light do you see at a point where the oil is 380 nm thick? What color is the light? (B) In the water under the slick, what visible wavelength is predominant in the transmitted light at the same place in the slick as part (A)?

An automated water dispenser fills packets with one liter of water on average, with a standard deviation of 5 milliliter. the manual says that after a year of operation the dispenser should be tested to see if it needs recalibration. a year later a number of filled packets are set aside and measured separately. it is found that the average packet now contains about 0.995 liters. does the dispenser need calibration? explain your answer.

Which basic geometric term has no width, no length, and no thickness? line b. point c. angle d. plane

If cos(θ)=2853 with θin q iv, what is sin(θ)?