J.J. Thomson's experiments provided evidence that an atom B.contains negatively charged particles.
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Hi I need help with some questions I have on a quiz / test
1) 0N... friction opposes the motion of an object, since the block is at rest there is no motion thus no friction
2) F=ma
= (5.5kg)(30m/s)
=165 N
This had to do with gain power and trade inequality business