- A sports car travels at 180km/h. Calculate and write the steps to show how long will it travel in 40 minutes? Please helppp! ​

Ascientist notices that an oil slick floating on water when viewed from above has many different colors reflecting off the surface, making it look rainbow-like (an effect known as iridescence). she aims a spectrometer at a particular spot and measures the wavelength to be 750 nm (in air). the index of refraction of water is 1.3