The force vector of the quadriceps muscle group is oriented at 25 degrees to the mechanical axis of the tibia, and intersects the mechanical axis of the tibia 0.04 m from the center of the knee joint. draw an anatomically accurate, representative diagram of this situation.

Apreheater involves the use of condensing steam at 100°c on the inside of a bank of tubes to heat air that enters at 1 atm and 25°c. the air moves at 5 m/s in cross flow over the tubes. each tube is 1 m long and has an outside diameter of 10 mm. what is the minimum value of nl needed to achieve an outlet temperature of t 75 c? what is the corresponding pressure drop across the tube bank?