An electron in a vacuum tube starting from rest is uniformly
accelerated by an electric field so that it has a speed of
6 x 108m/s after covering a distance of 1.8 cm. Find the
force acting on the electron. Take the mass of electron as
9.1 x 1031 kg.
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Un peatón camina a lo largo de una calle de 20 metros, en línea recta a una velocidad constante de 2,5 m.s-1 hasta llegar a la mitad del recorrido, luego comienza a correr con una aceleración constante de 2 m.s-2 durante 2 s.
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