Suppose a ternary alloy containing 40 atomic % A, 20 atomic % B, 40 atomic % C solidifies through a ternary eutectic reaction to a mixture of α, β and γ with the following compositions: 80 atomic % A, 5 atomic % B, 15 atomic % C; 70 atomic % B, 10 atomic % A, 20 atomic % C; and 20 atomic % B, 10 atomic % A, 70 atomic % C. What will be the mole fractions of α, β and γ in the micro-structure?

Vortex Excitation, Lock-In, Initial Branch, Lower Branch, Upper Branch, Added Mass and Added Damping.

The piston cylinder contains 4 kg of saturated water vapor with 200 kPa. The heat is rejected from the water, and the piston moves from the stops when the pressure reaches 100 kPa. Then the heat is rejected until the total volume decrease to 30% from the initial volume. Determine the work done and heat transfer during this process, show the process on a P-V diagram.

1. A torsion spring has the following conditions:

• Moment load = 3.0 in-lb; Spring OD = 0.6”; 1/8” wire diameter; Squared and ground ends; 5 body turns; Material is music wire; Both end lengths = 0.75”

Answer the following:

Q1) In a food processing facility, a spherical container of inner radius r1 =41 cm, outer radius r2 = 43 cm, and thermal conductivity k = 2 W/m · °C is used to store hot water and to keep it at 105°C at all times. To accomplish this, the outer surface of the container is wrapped with a 510-W electric strip heater and then insulated. The temperature of the inner surface of the container is observed to be nearly 100°C at all times. Assuming 80 percent of the heat generated in the heater is transferred to container
a) Express the differential equation and the boundary conditions for steady one-dimensional heat conduction through the container,
b) Obtain a relation for the variation of temperature in the container material by solving the differential equation.
c) Determine the temperature at the center plane of the container

please read the article 'Exley Chemical Company' and write how could you manage the communications between the departments in the company to minimize conflicts. should be more than 300 words.

Calculate the torque requirements for SAE 5.8 Class Bolt having a size of M24 x 3 UNC

(a)250 kg of water at 1 bar and 35°C is turned into wet steam at 7 bar (x = 0.95). Given at 1 bar hf = 417 kJ/kg, hfg = 2258 kJ/kg, Tsat = 100°C and at 7 bar hf = 697 kJ/kg, hfg = 2067 kJ/kg, Tsat = 165°C. Determine the energy required.

(b)Determine the mass of dry saturated steam at 1 bar that must be added to 500 kg of water at 20°C to achieve a final water temperature of 45°C. Given; hf = 417 kJ/kg, hfg = 2258 kJ/kg. Tsat = 100°C.

Chapter 3 problem 15

Suppose that in a machining operation of multidirectional FRPs you are getting

high principal (cutting) forces. Which action would you take to reduce the

principal forces? Why?

(a) Reduce cutting speed

(b) Increase rake angle

(c) Reduce depth of cut

(d) Increase clearance angle

(e) All of the above

A frictionless air compressor operates between 200 kPa and 6 MPa. The inlet is at 25°C. Compared to operating adiabatically, what is the energy-input (e.g. power) savings by cooling it with a polytropic exponent of 1.16? Answer in kJ/kg (i.e. kJ of energy saved for every kg of air compressed).

Correct answer is 9.23 kJ/kg; please show steps and thank you!

Rub wool on the Styrofoam cup and hold it over tiny bits of paper on the lab table. What happens to the paper?

Put down some dark paper and a pile of salt and observe the interaction with the charged cup. What happens to the salt?

Consider the fundamental forces: gravity, electromagnetic, as observed with the interactions with salt and pepper. How does this demonstrate the relative strengths (which is stronger?) of these fundamental forces?

Rub the balloon with the wool cloth (or with your own hair). What kind of charge does the balloon acquire? Bring the charged balloon near the bits of paper or salt. Will it “pick up” tiny bits of paper? Yes Observe how distance affects the interactions. What difference does distance make?

Charge it up again and press against a wall made of sheetrock (not brick or stone). Will it stick to the wall? No Go to the sink, turn on the water so that there is a small, steady stream. “Charge up” your plastic tube and hold it close to the top of the stream of water. What happens and why?

Now rub the plastic tube with a square cut from a cooking bag. Write a procedure that you can use to determine if the plastic tube has acquired a net positive or a net negative charge from the cooking bag. (you can use some of the other materials).

Bring the plastic tube charged with the cooking bag near the aluminum can. What happens to the aluminum can when the tube charged from the cooking bag is held near it?

An air-conditioning system operates at a total pressure of 1 atm and consists of a heating section and an evaporative cooler. Air enters the heating section at 15°C and 55 percent relative humidity at a rate of 30 m³/min, and it leaves the evaporative cooler at 25°C and 45 percent relatively humidity. Using appropriate software, study the effect of total pressure in the range 94 to 100 kPa and plot the results as functions of total pressure

What are the main classes of engineering materials?