The design flight Mach number of an ideal ramjet engine is 2.8 . The stagnation temperature of air at the exit of the combustor is $2400 \mathrm{~K}$. Assuming the specific heat
ratio of 1.4 and gas constant of $287 \mathrm{~J} /(\mathrm{kg} \mathrm{K}),$ the velocity of air at the exit of the engine is__________ $\mathrm{m} / \mathrm{s}$ ( round off to one decimal place ).
The design flight Mach number of an ideal ramjet engine is 2.8 . The stagnation temperature of air at the exit of the combustor is $2400 \mathrm{~K}$. Assuming the specific heat
ratio of 1.4 and gas constant of $287 \mathrm{~J} /(\mathrm{kg} \mathrm{K}),$ the velocity of air at the exit of the engine is__________ $\mathrm{m} / \mathrm{s}$ ( round off to one decimal place ).