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Engineering

Dale Chang

Thin film deposition is a process where: a) - elemental, alloy, or compound thin films are deposited onto a bulk substrate! b) - Phosphatization is also applied c) - Zinc plating is also applied d) - None of the above

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Engineering

Jaron Glenn

Between 1975 and 1985, the volume of all iron and steel in a given automobile model decreased from 0.165 m3m3 to 0.118 m3m3. In the same time frame, the volume of all aluminum alloys increased from 0.012 m3m3 to 0.023 m3m3. Using the densities of pure FeFe and AlAl, estimate the mass reduction resulting from this trend in materials substitution.

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Engineering

Danika Maxwell

In a surface grinding operation, the wheel diameter = 8.0 in, wheel width = 1.0 in, wheel speed = 6000 ft/min, work speed = 40 ft/min, infeed = 0.002 in, and crossfeed = 0.20 in. The number of active grits per square inch of wheel surface = 400. Determine

(a) the average length per chip,

(b) the metal removal rate

(c) the number of chips formed per unit and the average volume per chip?

(d) If the tangential cutting force on the workpiece is 50 lb, what is the specific energy calculated for this job?

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Engineering

Chad Villarreal

Compute the radius r of an impurity atom that will just fit into an FCC octahedral site in terms of the atomic radius R of the host atom (without introducing lattice strains)

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Engineering

Armani Moyer

A woman walks due west on the deck of a ship at 3 miyh. The ship is moving north at a speed of 22 miyh. Find the speed and direction of the woman relative to the surface of the water.

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Engineering

Nyla Mitchell

Where are all the controls on most circuits?

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Engineering

Samantha Lyons

Firms are able to price discriminate A. when all customers are uninformed about quality differences. B. when there is full information about quality available to all customers. C. when some customers are uninformed about quality differences. D. when no customers are uninformed about quality differences.

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Engineering

Finnegan Pruitt

For H2O, determine the specified property at the indicated state.

(a) T = 140°C, v = 0.5 m3/kg. Find p, in bar.

(b) p = 30 MPa, T = 80°C. Find v, in m3/kg.

(c) p = 10 MPa, T = 600°C. Find v, in m3/kg.

(d) T = 80°C, x = 0.4. Find p, in bar, and v, in m3/kg.

For H2O, determine the specific volume at the indicated state, in m3/kg.

(a) T = 440°C, p = 20 MPa.

(b) T = 160°C, p = 20 MPa.

(c) T = 40°C, p = 2 MPa.

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Engineering

Emery Duarte

Give five general principles involved in the process of sewage filtration?

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Engineering

Justice Kirby

A walrus loses heat by conduction through its blubber at the rate of 220 W when immersed in - 1.00°C water. Its internal core temperature is 37.0°C, and it has a surface area of 2.23 m2. What is the average thickness of its blubber? The conductivity of fatty tissue without blood is 0.20 (J/s · m · °C).

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Engineering

Jennifer Mcgrath

2 Consider airflow over a plate surface maintained at a temperature of 220°C. The temperature profile of the airflow is given as The airflow at 1 atm has a free stream velocity and temperature of 0.08 m/s and 20°C, respectively. Determine the heat flux on the plate surface and the convection heat transfer coefficient of the airflow

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Engineering

Frost

3-kg plastic tank that has a volume of 0.2 m3 is filled with liquid water. Assuming the density of water is 1000 kg/m3, determine the weight of the combined system.

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Engineering

Glenn Goodwin

An insulated rigid tank of volume 8 m3 initially contains air at 600 kPa and 400 K. A valve connected to the tank is opened, and air escapes until the pressure inside the tank is 200 kPa. The air temperature during the release is kept constant using an electrical resistance heater in the tank. What is the amount of work done by the resistance heater (Wcv) during the process

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Engineering

Lucian

Martha Lightfood, an 82-year-old female, was brought into Dr. Morrison's office byher daughter because Martha was complaining of a sharp pain in her chest. After a negative EKG, Dr. Morrison had a quantitative differential pulmonary perfusion and ventilation study performed, which confirmed a pulmonary embolism. Marthawas taken immediately by ambulance to the hospital. Code the quantitative differential pulmonary perfusion and ventilation study only

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Engineering

Guest

The temperature at which the polymer becomes viscous is called: glass transition temperature (Tg). a) - True b) - false?

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