Arace car with a 106-inch wheelbase has its weight evenly distributed between front and rear axles. at 150 mi/h, on a race track with u=1.0, the optimal brake force has 67.32% of the braking force on the front brakes. a new racing tire generates u=1.2. at 150 mi/h, what percentage of the braking force should now be allocated to the front to achieve optimal braking?

Steam at a pressure of 100 kpa and a quality of 50% initially fills a rigid vessel having a volume of 0.5 m^3. the steam is then heated, causing the pressure in the vessel to rise to 150 kpa. determine: i. the mass of the steam in the vessel. ii. the temperature and quality of the steam after the heating process. ii the mass of the vapour, mg and liquid, m in the vessel after the heating process. if the steam in the vessel is now further heated, what would the pressure and temperature in the vessel be when all steam has turned into saturated vapour? b. sketch the processes in part (a) and part (b) on p-v and t-v diagrams, indicating clearly the temperatures, pressures and the paths. c. (0.59kg, 111.4°c, 73%, 0.4307kg, 0.1 593kg, 2.11 bar, 121.84°c)