Explanation:
In order to maintain electrical neutrality, +3 nC charge which is present in the cavity tends to attract -3 nC charge in the inner surface of cavity.
Since, it is given that -3 nC charge is present in the hollow cavity. So, in order to maintain electrical neutrality -3 nc charge has to be present on the surface of the metal.
Thus, we can conclude that the total charge on the exterior surface of the metal is -3 nC.
Gas is a substance that will not phase change.
And vapor is a substance above it's boiling point temperature.
The principal is doing a lot better now on
Answer: Bc of the non trash
Explanation:
