11.13 A telephone line operating at 1 kHz has R 5 6.8 V/mi, L 5 3.4 mH/mi, C 5 8.4 nF/mi, and G 5 0.42 mS/mi. Find (a) Z and g, (b) phase velocity, (c) wavelength.

An ideal otto cycle has a compression ratio of 8. at the beginning of the compression process, air is at 95 kpa and 27°c, and 750 kj/kg of heat is transferred to air during the constant-volume heat-addition process. assuming constant specific heats at room temperature, determine (a) the pressure and temperature at the end of the heat-addition process, (b) the net work output, (c) the thermal efficiency, and (d) the mean effective pressure for the cycle. (4390 kpa, 1730 k; 423 kj/kg; 56.4%; 534 kpa)