You are given three strings x y z from the strings x and y you need to create string z in all the possible ways print numbers of ways can be formed

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

Thermal stresses are developed in a metal when its a) initial temperature is changed b) final temperature is changed c) density is changed d) thermal deformation is prevented e) expansion is prevented f) contraction is prevented

The drive force for diffusion is 7 fick's first law can be used to solve the non-steady state diffusion. a)-true b)-false