The supersonic flow of a gas ((gamma=1.4)) approaches a wedge with a half-angle of (24^{circ}) (left(delta=24^{circ} ight)).

The supersonic flow of a gas \((\gamma=1.4)\) approaches a wedge with a half-angle of \(24^{\circ}\) \(\left(\delta=24^{\circ}\right)\).

(a) What Mach number will put the shock on the verge of detaching?

(b) Is this value a minimum or a maximum?