Suppose your car has a maximum straight-line braking acceleration of 5.0 2 . Calculate the stopping distance for the following initial speeds: (a) 24.6 [~55 ℎ], (b) 31.3 [~70 ℎ], and
(c) 38 [~85 ℎ]. (d) How is stopping distance related to your initial speed?
(e) What effect does
doubling your speed have on stopping distance?
(f) Suppose you increase your speed by 15%, what is
the percent increase of your stopping distance?

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 -

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Because its reliable.   there is no pollution  the chances of a radiation leak is low

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