1 You may sometimes find it difficult to get up from the sofa after watching a TV programme.
Assuming the force of gravity acts between the centre of your body and the centre of the sofa,
estimate the attraction between you and your sofa.
ON
2
Calculate the size of the gravitational pull of a sphere of mass 10 kg on a mass 2.0 kg
their centres are 200 mm apart.
What is the force of the 2.0 kg mass on the 10 kg mass?
when

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 -

Answer the above statement is ( false );

I'm pretty sure the answer is c