A.5 [kg] cube of aluminum at 10.0 [°c] is dropped into water at 30 [°c]. the specific heat of the water is 4186 [j/(kg °c)], the specific heat of aluminum is 900 [j/(kg °c)]. after a few minutes the final temperature of the water (with the aluminum cube in it) (a) assuming no heat is lost and assuming that the effects of the container can be neglected, what is the mass of the water just before the aluminum cube was dropped in? was measured as 28.98 [°c]. 1p (b) what was the volume of the aluminum cube in [m2] and in [em'] if the density of aluminum is 2830 (ko/m212 lp

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 -

Wind or electric energy force force of friction