Problem 1: A current of 53 µA passes through a wire. Part (a) Express the charge Q passing through the wire in terms of the current I and the time interval t. Q = Part (b) In a time interval of At = 61 s, how much charge has passed through the wire in uC? Q =

B A hair dryer is basically a duct of constant diameter in which a few layers of electric resistors are placed. A small fan pulls the air in and forces it through the resistors where it is heated. If the density of air is 1.15 kg/m3 at the inlet and 1.05 kg/m3 at the exit, determine the percent increase in the velocity of air as it flows through the hair dryer 1.05 kg/m³ The increase in velocity is Pin kg/m³ Check my work %6

1. Write the expression for the voltage across the 2 ko resistor, and solve for its value. 9 k2 5kO 9 kO 10 V= 4 kQ 3 k2 2 k.

20. A fluid-filled catheter is 0.175 m long and has a diameter of 2.5 mm. What is the resistance(in GPa-s/m3) to the blood flow when the viscosity of blood is 0.0027 (N-s)/m2 ?