Acentrifugal compressor with 36 radial blades runs at a speed of 15000 rpm and delivers 30 kg of air per second. exit radius is 0.35 m. assume radial inlet and toi-300 k, pol-l bar, k-1.4 and cp-1005 kj/kg. k. the total-to total efficiency of the compressor is 84%. calculate the power required to drive the compressor (in kw). a)-8569 b)-9211 c)-6801 d)-7619

On a cold day, when the air temperature is 0°c, you empty your lungs and take a deep breath, filling your lungs with 4.2 l of air. if you hold your breath until the temperature of the air in your lungs reaches 37°c, what is the volume of the air in your lungs at that point, assuming the pressure does not change?

Two technicians are discussing a resistance measurement between the can-h and can-l wires. technician a says this measurement should be done with the ignition switch in the "run" position. technician b states that a measurement of 0 ohms indicates an open in the network. which technician is correct?

The ratio of lift to drag l/d for a wing or airfoil is an important aerodynamic parameter, indeed, it is a direct measure of the aerodynamic efficiency of the wing. if a wing is pitched through a range of angle of attack, l/d first increases, then goes through a maximum, and then decreases. consider an infinite wing with an naca 2412 airfoil. estimate the maximum value of l/d. assume that the reynolds number is 9x10^6.