A rigid pavement is being designed with the same parameters as used in Problem 4.5. The modulus of
subgrade reaction is 300 lb/in3 and the slab thickness is
determined to be 8.5 inches. The load transfer
coefficient is 3.0, the drainage coefficient is 1.0, and
the modulus of elasticity is 4 million lb/in2. What is the
design modulus of rupture? (Assume that any
parameters not given in this problem are the same as
those given in Problem 4.5

The y form of iron is known as: a) ferrite b) cementite c) perlite d) austenite

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.

Prove the equivalence between the two statements of the 2nd law of thermodynamics (i.e., a violation of one statement leads to the violatio the other statement)