The kinetic energy of an object is 30J. Find its kinetic energy if its mass is doubled and its speed is multiplied by four.

Pewnej nocy zakradł się pod pobliski dwór i, gdy nikogo nie było w kredensie, sięgnął po wiszące na ścianie skrzypki. zrobił to zbyt nieostrożnie i zbudził lokaja, który oskarżył janka o próbę kradzieży. sąd, nie chcąc posłać go do więzienia, kazał stójce stachowi zbić go rózgą. chłopak, zbity bardzo mocno, zmarł trzeciego dnia.

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 -

Iwould sure like to answer your question but i honestly just don’t know