A rectangular loop of dimen- sions , and w moves with a constant velocity Sv away from a long wire that carries a current I in the plane of the loop. The total resistance of the loop is R. Derive an expres- sion that gives the current in the loop at the instant the near side is a distance r from the wire

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