You look directly overhead and see a pla
e; zw+p wzo+ v9dhidd3.0si+qne exactly 1.5 km above the ground flying
sdh+0 p z.ei3+w+ vd i;9qwdoz faster than the speed of sound. By the time you hear the sonic boom, the plane has traveled a horizontal distance of 2.0 km. See Fig. 12–34. Determine
(a) the angle of the shock cone, $\theta$
$^{\circ} $
(b) the speed of the plane (the Mach number). Assume the speed of sound is 330 m/s