Answer:
If an object is electrically neutral it has no net charge becuase it has the same number of protons as it does electrons, which are opposite charges that offset each other. No, that just means that the sum of all its positive and negative amounts of charge equals zero.
Answer:
X: Use DC
Y: Use AC
Explanation:
The objects: Wall clock, T V remote control, Portable music player, are normally powered by batteries, which run DC current.
On the other hand, the objects: Refrigerator, Table lamp, Hair dryer, demand much larger power, and are normally run from the AC plug on the wall.
I THINK v = 9.8 is the final velocity on impact. Hope I helped
