The superintendent of a national cemetery wants to erect a larger than usual flagpole and flag. The flag pole is 120 ft tall. The flag has a height, H = 18 ft, and a length, L = 36 ft. Assume the flag pole must withstand a wind of 55 mile/hr at 32°F when the flag is flying. The drag coefficient of the flag can be estimated by CD = 0.05L/H. If the pole has a diameter of 8.5 in., determine the total force exerted on the pole. Assume that the pole is a smooth long cylinder and that the total drag is superposition of those for the stand alone flag and pole

Apump is used to circulate hot water in a home heating system. water enters the well-insulated pump operating at steady state at a rate of 0.42 gal/min. the inlet pressure and temperature are 14.7 lbf/in.2, and 180°f, respectively; at the exit the pressure is 60 lbf/in.2 the pump requires 1/15 hp of power input. water can be modeled as an incompressible substance with constant density of 60.58 lb/ft3 and constant specific heat of 1 btu/lb or. neglecting kinetic and potential energy effects, determine the temperature change, in °r, as the water flows through the pump.

Abrake has a normal braking torque of 2.8 kip in and heat-dissipating cast-iron surfaces whose mass is 40 lbm. suppose a load is brought to rest in 8.0 s from an initial angular speed of 1600 rev/min using the normal braking torque; estimate the temperature rise of the heat dissipating surfaces.

Different types of steels contain different elements that alter the characteristics of the steel. for each of the following elements, explain what the element does when alloyed with steel.