Air at \(55 \mathrm{kPa},-7^{\circ} \mathrm{C}\), and a Mach number of 2.0 is forced to turn upward by a ramp that makes an \(8^{\circ}\) angle off the flow direction. As a result, a weak oblique shock forms. Determine the wave angle, Mach number, pressure, and temperature after the shock.