Physics, 23.05.2021 15:10 Emorej22

What is the speed of a 500 kg elevator that has 4000 J of energy ?

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Physics, 22.06.2019 11:30, Gigglygoose4181

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Physics, 22.06.2019 20:30, cnicole71

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