A man can at 6kmhr-¹ in still water and want to cross a river to a position exactly opposite his starting point , if the riser is 5km wide and is flowing at 4kmhr-¹ eastward, find by scale drawing or otherwise the direction in which he must set off in order to accomplish his objective and how long will it take to cross the river

An  atom  (ours, not carroll's) consists of a positively charged  nucleus, surrounded by one or more negatively charged particles called  electrons. the positive charges equal the negative charges, so the atom has no overall charge; it is electrically neutral. most of an atom's mass is in its nucleus; the mass of an electron is only 1/1836 the mass of the lightest nucleus, that of hydrogen. although the nucleus is heavy, it is quite small compared with the overall size of an atom. the radius of a typical atom is around 0.1 to 0.25 nanometres (nm), whereas the radius of a nucleus is about 10-6  nm.  *  if an atom were enlarged to the size of the earth, its nucleus would be only 200 feet in diameter and could easily rest inside a small football stadium.read more on -

A. they hold atoms  together with a molecule.its a force that exist between molecules. hope this .

Answer body lying face up ;