PLS ANSWER FAST WILL GIVE Fill in the blank

The atomic number is the same as the number ofin an atom

In a voltaic cell, electrons flow from the (positive/negative) to the (positive/negative) terminal.

The energy equivalent of the rest mass of an electron is

3. a lunar exploration vehicle was created by a research team. it weighs 3,000 kg on the earth. it needs an acceleration of 10 m/s2 on the moon. in order to have the same acceleration, what will be the net force acting on the vehicle on the earth?