Your new designer chair has an S-shaped tubular metal frame that behaves just like a spring with the spring constant 15100 N/m. When your friend, who weighs 971 N, sits on the chair, how far does it bend?

A6.0-μf air-filled capacitor is connected across a 100-v voltage source. after the source fully charges the capacitor, the capacitor is immersed in transformer oil (of dielectric constant 4.5). how much additional charge flows from the voltage source, which remained connected during the process?