Define Reynold's number and explain its significance.
Describe the difference between engineering stress and strain?
At a point on the surface of a plane stressed object, the strains are measured to be: ex=800 u mm/mm; ey=150 u mm/mm ; xy=500 u mm/mm The object s material properties are: E = 200 Gpas and the poisson
A mechanical part is made of structural steel and subject to an uniaxial tensile force of 150 kN. The member has a cross-sectional area of 1300 mm2. The yield stress of the steel is 250 MPa. The ultim
What is the price elasticity of demand and how is it measured?
Consider two rods made out of aluminium (E = 70GPa, = 22 10-6/ C) and copper (E = 100GPa, = 16 10-6/ C). They have different cross sectional areas and lengths, and are placed between tworigid walls
A specimen is originally 1 ft long, has a diameter of 0.6 in ., and is subjected to a force of 450 lb . When the force is increased from 450 lb to 1850 lb , the specimen elongates 0.007 in. Determine
Use the plane stress transformation equations to find the normal stress and the magnitude of the shear stress on plane A-A for the stress acting at a point in a machine component shown below section A
The Bar DE is steel and has a cross sectional area of 0.25 in^2 and a modulus of elasticity of 29,000 ksi stress brass yiels = 30 Ksi Bar BC is brass and has a cross sectional area of 0.3 in^2 and a m
One sphere of 1m diameter in a water flow at 1 m/s undergoes a drag force of 400N. Calculate the drag coefficient CD
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1. Can you help me with this Thermodynamics question:
- A closed, rigid tank whose volume is 1.5 m3 contains refrigerant 134a, initially a two phase liquid-vapor mixture at 10C. The refrigerant is heated to a final state where temperature is 50C and quality is 100%. Locate the initial and final states on a sketch of the T-v digram. Determine the mass of vapor present at the initial and final state, each in kg.
2. Can you show me step-by-step how to determine the phase or phases in a system consisting of H2O at the following conditions and sketch p-v and T-v diagrams shown the locations of each state?:
- a) P= 80 lbf/in^2, T= 312.07 F
- b) T= 400 F, P= 360 lbf/in^2