17. [-/4 Points] DETAILS OSUNIPHYS1 27.5.WA.052. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A lamp in a child's Halloween costume flashes based on an RC discharge of a capacitor through its resistance. The effective duration of the flash is 0.180 s, during which it produces an average 0.720 W from an average 3.00 V. (a) What energy does it dissipate? (b) How much charge moves through the lamp? C (c) Find the capacitance. (d) What is the resistance of the lamp? 12 Additional Materials Reading 18. [-/2 Points] DETAILS OSUNIPHYS1 27.5.P.054. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A heart defibrillator being used on a patient has an RC time constant of 20.0 ms due to the resistance of the patient and the capacitance of the defibrillator. (a) If the defibrillator has a 7.80 UF capacitance, what is the resistance (in k() of the path through the patient? (You may neglect the capacitance of the patient and the resistance of the defibrillator.) KQ (b) If the initial voltage is 12.0 kV, how long (in ms) does it take to decline to 5.60 x 102 v? ms Additional Materials Reading