This is false. An unbalanced charge, whether negative or positive, is called a
<em>static charge</em>. This explains why a balloon 'sticks' to your wool sweater. This is because of the static charge, which is caused by the imbalance of charges due to the electrons losing and gaining energy which is achieved by the mere action of rubbing.
D. Redefine the machine’s system boundaries.
The Law of Conservation of Energy states that energy can't be created not destroyed. Energy, however, can be changed from one form to another. The law applies to isolated systems only. By redefining and expanding the system (including all factors affecting it) , the machine's ability to do work should improve.
This is either a trick question or a very hard one. In the first case: An electric field cannot occur inside a conductor (or by using the superposition principle you find out that at this point your electric fields cancel each other out)... Or you must use the laplace equation and proper boundary conditions to solve for the electrostatic potential
<span>Edit: Considering the center of mass of the plate is on the plate</span>
Hello!
6. Answer: B) Apparent magnitude.
7. Answer: A) Absolute magnitude.
8. Answer: C) Fusion begins.
11. Answer: D) Cool, bright stars.
12. Answer: D) Prominences.
13. Answer: A) Clusters.
14. Answer: B) Elliptical.
15. Answer: A) Spectrum.
I really hope this helped you! c: