what is the current i1i1i_1 supplied by the battery a time ttt = 0.4 msms after the switch is closed? express your answer in amperes to three significant figures.

The force it would take to accelerate an 900-kg car at the rate of 6m/s2

Ajoint produces movement when its angle decreases. which type of movement is it?

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?