No teto de um vagão ferroviário, prende-se uma esfera de aço por meio de um fio leve e inextensível. verifica-se que em um trecho retilíneo e horizontal da ferrovia o fio se mantém na posição indicada, formando com a vertical um ângulo de 45⁰. no local, adota-se g=10m/s².

Complete the sentence to describe the law of conservation of energy. the law of conservation of energy states that energy cannot be created or , but it can be

Which transition by an electron will release the greatest amount of energy? oa ob oc od

In a simplified model of the human eye, the aqueous and vitreous humors and the lens all have a refractive index of 1.40, and all the refraction occurs at the cornea, whose vertex is 2.60 cm from the retina. what should be the radius of curvature of the cornea such that the image of an object 40.0 cm from the cornea’s vertex is focused on the retina?