Cuales son las diferencias entre el helio y el hidrógeno?
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Ответ:
El helio es más ligero que el aire y a diferencia del hidrógeno no es inflamable, siendo además su poder ascensional un 8 % menor que el de este, por lo que se emplea como gas de relleno en globos y zepelines publicitarios, de investigación atmosférica e incluso para realizar reconocimientos militares.espero ke esto ayude!
Ответ:
Work done = 1/2 × Ne
Explanation:
Given that if a force of N stretches a spring m beyond its natural length, how much work does it take to stretch the spring m beyond its natural length
Using Hook's law
Force = N
Let the extension = e
Work done in stretching spring m beyond its natural length will be
Workdone = 1/2 × Ne
Or
From Hook law,
N = Ke
Work done = 1/2 × Ke^2