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<span> Vertical height of longest escalator in free world = 58.8 sin 32.4 = 31. 5 m
Karen's mass = 54.6 kg
Work done on Karen = mgh = 54.6(9.81)(31.5) = 1.69e4 J = 16.9 KJ ANS </span>
The atomic number of zinc is 30 therefore The electronic configuration of zinc is expressed as 1s^2 2s^2 2p^6 3s^2 3p^6 3d^10 4s^2 or in simpler form expressed as [Ar] 3d^10 4s^2. The electronic configuration shows the distribution of the electrons of an atom or a molecule.
When hydrogen atoms are energized by electricity, an emission spectrum of specific colors occurs because of the different wavelengths.