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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

Acoil suspended freely, points in some direction when no current is passed through it . can you tell what will happen when a current is passed though it?

The ability to make things happen is also called a. heat b. force c. matter d. energy