Water drips from a faucet at the rate of 150 drops in 120 seconds. What is the period?

Which lists the organs in the correct order as food passes from the mouth to anus?

Argon, neon, and xenon are examples of

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