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Porque crees que el agua no podia subir mas de 10 m de altura con ese tipo de bomba

The of a machine determines its "usefulness." a. input force b. output force c. mechanical advantage

The atoms in a nickel crystal vibrate as harmonic oscillators with an angular frequency of 2.3 × 1013 rad/s. the mass of a nickel atom is 9.75 × 10-26 kg. what is the difference in energy between adjacent vibrational energy levels of nickel? (h = 6.626 × 10-34 j • s, , 1 ev = 1.60 × 10-19 j)