A brick is sitting on a platform 90 m high. It weighs 122 N. What kind of energy does the block have? Calculate the energy.

The energy is gravitational potential energy,
The value = 122 x 90 = J

Edit the post so i can see the letters for each answer, and increase the points required so i'd be able to answer it.

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.