An object of irregular shape has a characteristic length of \(L=0.5 \mathrm{~m}\) and is maintained at a uniform surface temperature of \(T_{s}=400 \mathrm{~K}\). When placed in atmospheric air at a temperature of \(T_{\infty}=300 \mathrm{~K}\) and moving with a velocity of \(V=25 \mathrm{~m} / \mathrm{s}\), the average heat flux from the surface to the air is \(10,000 \mathrm{~W} / \mathrm{m}^{2}\). If a second object of the same shape, but with a characteristic length of \(L=2.5 \mathrm{~m}\), is maintained at a surface temperature of \(T_{s}=400 \mathrm{~K}\) and is placed in atmospheric air at \(T_{\infty}=300 \mathrm{~K}\), what will the value of the average convection coefficient be if the air velocity is \(V=5 \mathrm{~m} / \mathrm{s}\) ?