The initial velocity of a car moving along a straight path was 0 meters/second. after 10 seconds it reached a velocity of 25 meters/seconds. calculate the cars average acceleration during this time period.

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