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Identify the system partitioning used, the device concept, and key details that affect either the package design or the choice of device fabrication technology.
What is the root mean-square amplitude of the fluctuation of the position of the proof mass?
is concrete the most widely used engineering material? Compared to steel, what are the engineering benefits of using concrete for structures?
What is the significance of elastic limit in structural design? Discuss the significance of drying shrinkage, thermal shrinkage, and creep in concrete.
What is the significance of the microstructure of a material? How do you define microstructure?
How many types of voids are present in a hydrated cement paste? What are their typical dimensions?
Also calculate the water-cement ratio needed to obtain zero porosity in a fully hydrated cement paste.
How the microstructure of hydration products in the aggregate-cement paste interfacial transition zone is different from the bulk cement paste in concrete.
Why is strength property most valued in concrete by designers and quality control engineers? discuss how strength and porosity are related to each other.
Explain how water-cement ratio influences the strength of the cement paste matrix and the interfacial transition zone in concrete.
Determine the speed of the cylinder after it has fallen 200 mm. How far has it fallen when it momentarily stops?
Determine from the company web site whether they provide tools for dealing with all four design levels, and with packaging interactions.
Determine, to the extent possible from the published material, the physical system partitioning, and whether the product uses position-control feedback.
Using the Deal-Grove model, determine dry oxidation times required to produce 100 nm of oxide on a bare silicon wafer at temperatures of 920, 1000, and 1100oC.
What is the edge-length variation for the diaphragm if the actual wafer thickness for different wafers varies between 490 and 510µm.
Discuss the similarities and differences between organisms in the domains Bacteria and Archaea.
Assume you work for CDC and you were assigned to develop a study to investigate the relationship between consumption of sweetened soda and diabetes.
Draw a diagram of a perfectly inelastic demand curve. Suggest an example of a good for which demand might be perfectly elastic.
A jet flies at an altitude of 12 km where the air is at -40oC, 45 kPa, with a velocity of 1000 km/h. Find the Mach number and stagnation temperature on nose.
Find the nozzle exit area, the required pressure out of the pump, and the horizontal force needed to hold the cannon.
If the flow through the nozzle is reversible and adiabatic, determine the velocity and kinetic energy per kilogram of water leaving the nozzle.
How large a force must be applied to a squirt gun to have 0.1 kg/s water flow out at 20 m/s? What pressure inside the chamber is needed?
I drive down the highway at 110 km/h on a 25oC, 101.3 kPa day. What is the force on my hand and what temperature do I feel?
Steam at 1600 kPa, 300oC, flows so that it has a stagnation (total) pressure of 1800 kPa. Find the velocity and the stagnation temperature.
Determine the equilibrium composition of the products and also their temperature at the combustor exit.