What fraction of the air molecules in a house must be pushed outside while the furnace raises the inside temperature from 16.0° C to 27.0° C? The pressure does not change since the house is not 100% airtight.The coefficient of linear expansion of brass is 1.9x10^-5° C^?1. At 21.9° C, a hole in a sheet of brass has an area of 1.00 mm^2. How much larger is the area of the hole at 32.2° C?_____mm^2A system takes in 580 J of heat while performing 920 J of work. What is the change in internal energy of the system?______JA copper rod of length 0.40 m and cross-sectional area 7.00X10^-2 cm^2 is connected to an iron rod with the same cross section and length 0.22 m. One end of the copper is immersed in boiling water and the other end is at the junction with the iron. If the far end of the iron rod is in an ice bath at 0° C, find the rate of heat transfer passing from the boiling water to the ice bath. Assume there is no heat loss to the surrounding air. _______WDon‘t have to solve last problem if ya don‘t know
All Batman would have to do is pull the anti Iron-Man spray out of his utility belt.
Batman would win. He would use a batarang with an electric shock and short circuit Ironman and beat the crap out of Ironman. So yeah DC Comics nation fan!!
1. V2/V1 (27+273)/(16+273) 1.04 104/100 or (V2-V1/V1 4/100 or the required answer is 4% 2.Fractional increase in area 2*1.9*(10^-5)*(32.2-21.9) 0.0003914 Or increase in area 0.0003914 mm^2 3.Change in internal energy 580 - 920 -340 J or Internal energy will decrease by 340 J 4.Let the coefficients of Thermal conductivity for copper be 'Cu' and that of iron be 'Fe' and the temperature of the junction be T. Applying the condition of steady state we have, [Cu* (100-T)*(7.00*01^-2)]/0.40 [Fe* (T - 0)*(7.00*10^-6)]/0.22 ----------------------- 1 or 0.22*Cu(100-T) Fe*T*0.40 or T (22*Cu)/[0.22*Cu*+0.40*Fe] Heat Loss per second to ice bath, Q [(Fe*Cu)/{0.22*Cu*+0.40*Fe}]*((7.00*10^-. From Google we have cu 401 W/(m.K) and Fe 80 W/(m/K) or Q (401*80)/{0.22*401*+0.40*80}]*(7.00*10^-. 0.041 W
Batman wins, Batman beats ironman because he doesn't just have batarangs he has a huge tasergun bombs such as, smoke bombs, stink bombs, and thats just a few he even has a mini light saber! He also has many suits and he has his vehicles that can demolish Ironmans face! He has even faced gods and beat them he even fought the Justice League by himself.
