Final answer:
The drag force on a jet flying through air can be calculated using the drag equation, which involves the drag coefficient, density, area, and velocity.
Step-by-step explanation:
The ratio of the drag force on a jet flying through air is calculated using the drag equation, which states that the drag force (FD) is proportional to the square of the velocity (v). The equation for the drag force is given by FD = 0.5 * drag coefficient (C) * density (p) * area (A) * v². To calculate the ratio of the drag force on a jet flying, you would need the values of C (drag coefficient), p (density of the air), A (area of the jet facing the air), and v (velocity of the jet).