Consider the capacitor network 19.7 V 4.81 µF 5.8 µF 13.6 µF a b What is the voltage across the 5.8 µF (upper right hand) capacitor? Answer in units of V.

Ahot-air balloon takes off from the ground traveling vertically with a constant upward acceleration of magnitude g/4. after time interval δt, a crew member releases a ballast sandbag from the basket attached to the balloon. how many seconds does it take the sandbag to reach the ground? (express your answer in terms of δt)