What is current and si unit
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Calculate the amount of heat produced when 18000 coulombs of charge is transferred in one hour through a potential difference of 50v

In what direction does an applied force move an object

Consider a hydrogen atom in the ground state. what is the energy of its electron? =e= jj now consider an excited‑state hydrogen atom. what is the energy of the electron in the =5n=5 level? =e5= j