Which of the following is MOST likely to be true about a service manager? Select one:
a. They are responsible for the function of the service department.
O b. They do not need to have well-established skills in communication.
O c. They do not need to know how to motivate people.
O d. They need to possess abundant technical knowledge about vehicles.

Asolid cylinder is concentric with a straight pipe. the cylinder is 0.5 m long and has an outside diameter of 8 cm. the pipe has an inside diameter of 8.5 cm. the annulus between the cylinder ad the pipe contains stationary oil. the oil has a specific gravity of 0.92 and a kinematic viscosity of 5.57 x 10-4 m2/s. most nearly, what is the force needed to move the cylinder along the pipe at a constant velocity of 1 m/s?

Ahe-xe mixture containing a 0.75 mole fraction of helium is used for cooling electronics in an avionics application. at a temperature of 300 k and atmospheric pressure, calculate the mass fraction of helium and the mass density, molar concentration and molecular weight of the mixture. if the cooling capacity is 10 l, what is the mass of the coolant?

How to increase the thermal officiency of an ideal simple rankino cycle? among these methods, which one is the best and why?