Find the temperature at which air posses a density equal to that of hydrogen at 0°C. Density of air at nTP is 14.4. Ans: 3658.2 °C.

Atypical jetliner lands at a speed of 146 mi/h and decelerates at the rate of (10.4 mi/h)/s. if the jetliner travels at a constant speed of 146 mi/h for 1.5 s after landing before applying the brakes, what is the total displacement of the jetliner between touchdown on the runway and coming to rest?