A student investigates terminal velocity. She uses a tall glass tube filled with oil.
She drops a metal ball into the tube.
oil
The ball falls through the oil.
glass tube
(5)
(a) Use ideas about forces to explain how a falling object can reach a terminal velocity.

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.

    5.5 n======    assuming that      we have      m = 0.145 kg    a = 38 m/s²therefore    5.51 n, but two significant figures.final answer: 5.5 n

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