Ahorizontal 794-n merry-go-round is a solid disk of radius 1.47 m, started from rest by a constant horizontal force of 49.9 n applied tangentially to the edge of the disk. find the kinetic energy of the disk after 2.92 s.

The charge of an ion with 55 protons and 52 electrons is +3. the reason is because protons are positive, and there are three more than the amount of negative electrons.

Your answer is c. explanation: plasma  is the fourth state of matter, derived from the gaseous state of matter.  plasma  can contain free  electrons  and/or  ions. while  plasma is never neutral, it can either be positively or negatively charged.  gases, however, are electrically neutral.