What is the potential difference across a resistor if 125J of light and heat energy are released when a current of 2.5A flows throughout it for 2secs? 15points!!!

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

Explain what will happen if decomposers were apsent from a forest ecoysystem.

Aspacecraft that renters the earth’s atmosphere drastically slows down. the amount of kinetic energy the spacecraft has as it reenters the earths atmosphere