3. A force of 150 N is applied at an angle of 53° to a 30 kg box of kittens across a level surface with a coefficient of friction of 0.1 for 8 meters. a. Draw a free body diagram.
b. How much work is done by the applied force?
c. How much work is done by friction?
d. What is the net work done on the box?

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 -

50 meters per 5 seconds

Iagree c would be the answer