The camber line of a thin airfoil is given by ( z c ) = m ( x c ) (1 − ( x c ) 2 ), where m is a constant. (a) calculate the lift coefficient as a function of m and . (b) calculate the zero-lift angle of attack as a function of m. (c) calculate the pitching moment coefficient about the quarter-chord as a function of m. (d) plot cl, cm, c/4, and l=0 as a function of m. what conclusions can we make about the effect of camber? (e) do you think there will be agreement between your plots and experimental data for all values of m? why or why not?

Acertain flow of air (at stp) has a velocity distribution given by v i (in ft/s). if this flow is going through a 4 ft square area in the yz-plane (centered at the origin), what is the mass flow rate (in lbm/s)?

In a unit cell of fcc structure, indicate the position of one of the tetrahedral interstitial sites by plotting the corresponding tetrahedron. do the same for one of the octahedral interstitial sites (in a separate fcc unit cell). mark the positions of all the tetrahedral and octahedral interstitial sites in the unit cells. how many equivalent tetrahedral sites and how many equivalent octahedral sites are contained in a fcc unit cell, respectively. what is the coordination number for a tetrahedral site and what is the coordination number for an octahedral site?

An air-conditioning system consists of a heating section and an evaporative cooler. air enters the heating section at 10°c and 70 percent relative humidity at a rate of 30m^3/min, and it leaves the evaporative cooler at 20°c and 60 percent relatively humidity. if the air conditioning system operates at a total pressure of 98 kpa, determine (a) the temperature and relative humidity of the air when it leaves the heating section, (b) the rate of heat transfer in the heating section, and (c) the rate of water added to air in the evaporative cooler