An aircraft with a gross weight of $2000 \mathrm{~kg},$ has a speed of $130 \mathrm{~m} / \mathrm{s}$ at sea level, where the conditions are: 1 atmosphere (pressure), $288 \mathrm{~K}$ (temperature), and $1.23 \mathrm{~kg} / \mathrm{m}^{3}$ (density). The speed (in $\mathrm{m} / \mathrm{s}$ ) required by the aircraft at an altitude of $9000 \mathrm{~m}$, where the conditions are:

0.31 atmosphere, $230 \mathrm{~K}$, and $0.47 \mathrm{~kg} / \mathrm{m}^{3}$, to maintain a steady, level flight is ______________(accurate to two decimal places).

An aircraft with a gross weight of $2000 \mathrm{~kg},$ has a speed of $130 \mathrm{~m} / \mathrm{s}$ at sea level, where the conditions are: 1 atmosphere (pressure), $288 \mathrm{~K}$ (temperature), and $1.23 \mathrm{~kg} / \mathrm{m}^{3}$ (density). The speed (in $\mathrm{m} / \mathrm{s}$ ) required by the aircraft at an altitude of $9000 \mathrm{~m}$, where the conditions are:

0.31 atmosphere, $230 \mathrm{~K}$, and $0.47 \mathrm{~kg} / \mathrm{m}^{3}$, to maintain a steady, level flight is ______________(accurate to two decimal places).

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