Problem 4: Consider the three resistors R1 = 11 Q, R2= 38 Q, and R3=72 Q in the configuration shown in the figure. A potential difference AV= 2.5 V is applied between A and B. R2 A R1 Part (a) Calculate the numerical value of the total resistance R of this circuit, in ohms. В R = Part (b) Calculate the numerical value of the current I traveling from A to B, in amperes. R3 I= Part (c) Calculate the numerical value of I, traveling through the resistor R2, in amperes. I, =

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Human Metabolism

Being described as the most complicated machine ever encountered by humans, the human body and the cell metabolism is nothing less than a wonder. Metabolism is the set of life-sustaining chemical reactions within organisms.