How much energy is produced from a object that is 4kg and traveling at 10 meters per second?(mass)x(velocity)2

There is one s orbital, and there are three p orbitals, five d orbitals, and seven f orbitals. thus, the answer is b. do not confuse the number of orbitals in a subshell with the number of electrons the subshell can hold. each orbital can hold two electrons, so the capacity of an nf subshell is 14 electrons.

The correct answer to this question is 28 

Ithink it's the third answer