TEXTBOOK QUESTIONS 4 of 5
A series circuit contains the following values of resistors:
R1 = 510 ohms
R2 = 680 ohms
R3 = 390 ohms
R4 = 750 ohms
Assume a source voltage of 48 V. Use the general voltage divider formula to calculate the voltage drop across each resistor. The formula and an example
E1 =
V
E2 =
V
E3
E4 =
V

10 kg of co2 is initially contained at 400 kpa and 300 k. the gas constant for carbon dioxide is 189 j/lkg k) and has a specific heat ratio, k, of 1.289. isentropic expansion then occurs until the pressure is 200 kpa. a) determine the initial volume of co2 in m. b) determine the final temperature in k. c) determine the work done by the system during the expansion kl.