What's an area of the earth that suggest that " the Earth is like one giant jigsaw" idea could be true.

Acharge q experiences no net force at a particular point in space. which of the following situations described below must always be true? -there are no other charges nearby. -if there are other charges nearby, they must all have the same sign as q. -if there are other charges nearby, they must all have the opposite sign of q. -if there are other charges nearby, the total positive charge must equal the total negative charge. -none of the above

How many electrons does each element require in its valence shell to become stable?

If you drive 12 miles north and 35 miles east, what is the direct distance between you and your starting point?