The motorcycle in the figure has a mass of m1 kg and its center of mass is at G1. The mass of the driver is m2 kg and the center of mass is at G2. Since there is μs between the wheels and the asphalt, determine whether it is possible for the driver to lift the front wheel off the ground. Neglect the mass of the wheels and assume that the front wheel can spin freely. a=0.41 m b= 0.39 m c= 0.75 m d= 0.25 m e=0.58 m m1=120 kg m2= 77 kg μs=0.82

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Chemical and Phase Equilibrium

Phase diagrams or equilibrium phase diagrams are the graphical representations that show the phase transformations of the constituting elements with respect to the pressure, temperature, and compositions. The diagrams show the conditions that limit the different phases, namely solid, liquid, and gas. The diagram can also be utilized to verify the relations between the state variables. Most of the phase diagrams are temperature-pressure phase diagrams, with the variable parameter as the composition. Usually other variables such as solubility and pressure parameters are not indicated in the phase diagram. For a one-component system (unary phase diagram), the phase diagram is generally a function of temperature and pressure as the state variables, or temperature and volume. However, for a binary system (two-phase) having two components, the phase diagram is a function of temperature and composition as the state variables only. Coexisting of the different phases of the constituting elements is indicated in the phase diagram. A ternary phase diagram can be characterized by consisting of three phases in equilibrium.