When the air has passed through a normal shock wave the Mach number is
Domanda 350, Principles of Flight - ATPL - Airline Transport Pilot license
| Lower than before but still greater than 1. |
| Equal to 1. |
| Less than 1. |
| Higher than before. |
| Lower than before but still greater than 1. |
| Equal to 1. |
| Less than 1. |
| Higher than before. |
