Aloaded garbage truck has low acceleration. it takes 10 seconds to go from 0 km/h to 100 km/h. what is the acceleration of the garbage truck? how much slower is the acceleration of the garbage truck compared to the acceleration of the sports car in figure 4.18?

|acceleration| = (change in speed) / (time for the change)

Change in speed = (end speed) - (start speed) = (100 - 0) = 100 km/hr

Acceleration = (100 km/hr) x (1 hr / 3,600 sec) x (1,000 m/km) / (10 sec)  = 

                         (100 x 1,000) / (3,600 x 10) (m/s²)  =  (2 and 7/9) m/s²

Fgiryhfdashnmhddvn,

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 -