In this configuration, a router interconnects four subnets: s1, s2, s3, and s4, and all of the interfaces in each of these four subnets are required to have the prefix 199.100.8.0/22. now you have the following requirements: s1 is required to support up to 500 interfaces, s2 is required to support up to 250 interfaces, and s3 and s4 are each required to support up to 125 interfaces. provide network addresses for the subnets (of the form a. b.c. d/x) that satisfy these requirements.

An air conditioning system consist of a 5 cm diameter pipe, operating at a pressure of 200 kpa. the air initially enters the pipe at 15°c with a velocity of 20 m/s and relative humidity of 80%. if the heat supply throughout the process is 960 w, determine the relative humidity and the temperature at the outlet

For the closed feedwater heater below, feedwater enters state 3 at a pressure of 2000 psia and temperature of 420 °f at a rate of ix10 ibhr. the feedwat extracted steam enters state 1 at a pressure of 1000 psia and enthalpy of 1500 btu/lbm. the extracted er leaves at an enthalpy of 528.7 btu/lbm steam leaves as a saturated liquid. (16) a) determine the mass flow rate of the extraction steam used to heat the feedwater (10) b) determine the terminal temperature difference of the closed feedwater heater

The filament of an incandescent lamp has a temperature of 2000k. calculate the fraction of radiation emitted in the visible light band if the filament is approximated as blackbody