1.
We have one for destroying it, so we just gotta put the vaporization values for the materials.
2. Depends on the speed, if it is FTL it is galaxy level.
3. Don't think this is calculable with so little context, but I'll try something.
Closest thing I found about all clouds is that 67% of the surface is covered on them, assuming they are on average 1 km tall, that's a volume of 3.41767e+17 m3.
Assuming a average thundercloud is 2 km3 since they are several km across and they contain the energy of 1 lightning bolt, which is 0.38 tons of TNT, all clouds would have a energy of about 65 megatons of TNT
This however is a very specific scenario and I probably got stuff wrong there.
4. 10^1.5*(65)+4.8 = around 2e102 joules, universe level, exponential increase is no joke.
5. If the shaking is going to destroy both of them at once, 2-C, if it is simple shaking,
multi solar system level to multi galaxy level depending the magnitude, also low multiverse range.
6. If said dimensions are legit for tier 1, this is infinitely above baseline high 1-B.
