Which country has the highest number of beachfront hotels?

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

The earth exerts a gravitational force of 500 n on amy. what is amy’s mass in kg?

Aball is thrown horizontally from a cliff at 8m/s .in what direction is the ball moving 2s later?