Apipe discharges storm water into a creek. water flows horizontally out of the pipe at 1.9 m/s, and the end of the pipe is 3.1 m above the creek.

how far out from the end of the pipe is the point where the stream of water meets the creek?
express your answer to two significant figures and include the appropriate units.

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