The capacitor in an rc circuit is discharged with a time constant of 8.00 ms . part a at what time after the discharge begins is the charge on the capacitor reduced to half its initial value? express your answer with the appropriate units

1. explain how you calculate the net force in any direction on the box. 2. suppose an upward force of 15n is added to the box. what will be the net vertical force on the box? 3. what force could be applied to the box to make the net force in the horizontal direction zero? explain. 4. suppose a force of 25n to the right is added to the box. what will be the net force to the right?