Answer:
The net charge on the shell is 30x10^-9C
Explanation:
Pls see attached file
Answer:
e:10 m b: -5 m/s b.The object decreases its velocity.
Explanation:
Answer:
B. Repel each other
Explanation:
Two like charges have the same sign. Example an electron with a negative charge (-e) and another electron with same charge(-e). Or a proton with a positive charge (+e) and another proton with same charge (+e). Since each of these pair charges have the same sign, they will repel each other.
On the other hand, if the charges are opposite, ie negative charge and positive charge, they will attract each other.
B. Repel each other
