How can you make glass that is

1) MechanicallyFlexible, 2) Electrically Conductive, and 3) Optically Transparent?

The pressure p and volume v of a given mass of gas are connected by the relation

k=(p+a\v^2)(v-b)

where a, b, and k are constants.

Using the composite trapezoidal method, write a MatLab script to approximate the work done by the gas in expanding from an initial volume to a final volume. Express p in terms of v.

Where W = Integral (Pdv)

Describe the effect of both temperature and strain rate on the stiffness, strength and ductility of viscoelastic polymer materials.

Regarding the fracture mechanism of metals, polymers and ceramics

(a) Explain why FCC metals show a ductile fracture even at low temperatures while BCC metals do not.

(b) What is crazing? What can you say about the Poisson’s ratio of the crazed material?

(c) Generally, in ceramics, intergranular fracture is preferred to cleavage fracture; however, in metals, transgranular fracture is the preferred mechanism for brittle failure. Why? Use a physical reason supported with an equation in your answer.

13.75 Air enters the compressor of a simple gas turbine power plant at 70F, 1 atm, is compressed adiabatically to 40 lbf/in.2, and then enters the combustion chamber where it burns completely with propane gas (C3H8) entering at 77F, 40 lbf/in.2and a molar flow rate of 1.7 lbmol/h. The combustion products at 1340F, 40 lbf/in.2 enter the turbine and expand adiabatically to a pressure of 1 atm.The isentropic compressor efficiency is 83.3% and the isentropic turbine efficiency is 90%. Determine at steady state

(a) the percent of theoretical air required.

(b) the net power developed, in horsepower.

what is the difference between electrode and filler in welding process?how do you select proper electrode and filler in your process?

Provide a summary of the ASTM E112–12 standard’s definition of the grain size number G. Your summary should give the precise mathematical definition for G. Your summary should also supply a conceptual description of G; this description should not require significant technical background to understand. • Provide a summary of the Lineal Intercept Procedure described in the ASTM E112–12 standard. Your summary should give sufficient detail that someone could use it to compute the grain size number G without any other information.

Overall what exactly is G? What is ASTM E112-12? What is the lineal intercept procedure?

Solve an equation where the input is a complex number.

s = x + j(3)^0.5*x

Equation: s^3+3*s^2+2s+k = 0

Solve for k and x

An ideal Brayton cycle stationary power plant operates with a pressure ratio of 10 to 1. if it is designed to generate 800 MW of power what is the minimum flow rate required?

Hydraulic excavators always have a 4-bar linkage between the inverted crank-slider mechanism and the bucket. Find a picture from which you can determine if this 4-bar linkage is a triple rocker, a double crank, a double rocker, or a crank-rocke

Consider a fluid flowing perpendicular and over a long cylindrical body and the free stream velocity described by equation U(x) = 2 U_inf sin (x/R) where R=D/2 is the radius of the cylinder.

For a laminar flow in the boundary layer, calculate the local friction factor and heat transfer coefficient as a function of x using momentum and energy integral equations, beginning at x=0 until separation occurs.

Determine the Nusselt number N_UD = hD/k, as a function of phi=x/R, for the Reynolds numbers of R_eD = 40,000 , 70,000, 10,000 and 140,000.

3. Describe step-by-step brittle fracture of some metals and ceramics with poor ductility and toughness. In discussion highlight and use relevant terms such as transgranular, Chevron pattern and others.

Text Book- The Science and Engineering of Materials, Askeland et al. (seven edition

The flow rate of warm air into the air conditioning is 5,000 cfm. An air conditioning system takes outdoor air at 95 degrees F dry-bulb and 70% relative humidity, and discharges it at 60 degrees F dry-bulb and 95% relative humidity. The air conditioning system operates on a vapor compression cycle using R134a between 20 and 200 psia. Refrigerant enters the compressor at 20 degrees F and leaves the compressor at 180 degrees F. Refrigerant enters the evaporator coil at a quality of x = 0.3. Determine a) The quantity of water removed from the air, in lb/min. b) The quantity of heat removed from the air, in tons. c) The mass flow rate of refrigerant, in lb/s. d) The compressor's power requirement, in hp.

fluid mechanics question:

Why do birds have long narrow wings?