Explain why a person cannot dive in the Mariana Trench in the Pacific Ocean to a depth of approx. 11,000 m without appropriate protective equipment

A2.0 μf capacitor and a 4.0 μf capacitor are connected in series across a 0.827-kv potential. the charged capacitors are then disconnected from the source and connected to each other with terminals of like sign together. find the voltage across each capacitor.