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Engineering

If the "black box" flight recorder is never damaged during a plane

crash, why isn't the whole airplane made out of that stuff?

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Engineering

The federal highway administration reports nearly

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Engineering

What is a business cycle?

a period of economic growth followed by economic contraction

the amount of time it takes a business to produce its products

a dangerous time for all businesses

a period of increased economic growth

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Engineering

A rigid tank that contains 4.0 kg of N2 at 25°C and 550 kPa is connected to another rigid tank that contains 6.0 kg of O2 at 25°C and 150 kPa. The valve connecting the two tanks is opened, and the two gases are allowed to mix. If the final mixture temperature is 25°C, determine the volume of each tank and the final mixture pressure.

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Engineering

g A 1000-W iron is left on the ironing board with its base exposed to the air at 23°C. The convection heat transfer coefficient between the base surface and the surrounding air is 20 W/m2·°C. If the base has an emissivity of 0.4 and a surface area of 0.02 m2, determine the temperature of the base of the iron.

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Engineering

What is the initial state of the compression process of your car?

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Engineering

9. A Co has 500,000 total shares outstanding and each share is priced at 20$. B Co has 300,000 total shares outstanding and each share is priced at 40$. You have 100 shares in A Co and 200 shares in B Cos. After consolidation how many new shares you will own in consolidated AB Co?

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Abraham Beasley

Engineering

Explain the greenhouse effect and its connection to global warming?

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Jordyn Chandler

Engineering

An air conditioner removes heat steadily from a house at a rate of 750 kJ/min while drawing electric power at a rate of 6 kW. Determine (a) the COP of this air conditioner and (b) the rate of heat transfer to the outside air.

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Engineering

In today's engineering environment "scales" (the triangular plastic or wood instruments) are rarely used. However setting proper units of measurement and plotting to scale has not changed since computer aided drafting has come on the scene. List examples of how to set units and dimension variables for imperial and metric drawings, precision, text height, arrow sizes, etc.

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Engineering

A 227 pound compressor is supported by four legs that contact the floor of a machine shop. At the bottom of each leg there is a circular pad formed from a synthetic material to dampen vibration. The synthetic material will support up to a maximum pressure of 42 psi before deforming. What is the minimum diameter to avoid deforming the material?

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Engineering

2. Similar to problem 1, assume your computer system has a 32-bit byte-addressable architecture where addresses and data are each 32 bits. It has a 16K-byte (16,384 bytes) direct-mapped cache, but now the block size is 32 bytes. Answer the following question to observe how the design change impacts the cache size. [10pts]

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Engineering

Two monitoring wells were constructed in an unconfined aquifer. The wells are separated by a distance of 250 ft. The water surface elevations in the up-gradient and down-gradient wells were 101.00 ft and 100.85 ft, respectively. The aquifer hydraulic conductivity is 5 ft/day. The fluid velocity (ft/day) in the aquifer is most nearly:

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Princess Hernandez

Engineering

A 20 mm 3 20 mm silicon chip is mounted such thatthe edges are flush in a substrate. The substrate provides anunheated starting length of 20 mm that acts as turbulator. Airflow at 25°C (1 atm) with a velocity of 25 m/s is used to coolthe upper surface of the chip. If the maximum surface temperature of the chip cannot exceed 75°C, determine the maximumallowable power dissipation on the chip surface.

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Charlotte Miles

Engineering

Name four rules that will control or eliminate cavitation of a pump

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