(a) Use a graphing calculator or computer to find an exponential model for the charge. (See Section 1.5)
(b) The derivative Q€™(t) represents the electric current (measured in microamperes,
A) flowing from the capacitor to the flash bulb. Use part (a) to estimate the current when t = 0.04s. Compare with the result of Example 2 in Section 2.1

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0.08 0.00 0.02 0.04 0.06 0.10 44.93 36.76 81.87 100.00 67.03 54.88