How much heat is absorbed by 60 kg of copper (c=385 j/kg k) when it is heated from 10c to 60 c? calculate the amount of heat needed using the equation q = m c δt.

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?