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Engineering

What is the major difference between a disk clog and a disc harrow?

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Engineering

You are designing a system for a real-time application in which specific deadlines must be met. Finishing the computation faster gains nothing. You find that your system can execute the necessary code, in the worst case, twice as fast as necessary. How much energy do you save if you execute at the current speed and turn off the system when the computation is complete and how much energy do you save if you set the voltage and frequency to be half as much?

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Engineering

Measures the power output of the machine

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Engineering

What is an isochoric process? b) Can heat be exchanged in an isochoric process? c) A 100L container holding an ideal gas at an initial pressure of 10MPa is raised to a pressure of 15MPa. How much work is done?

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Engineering

Unwanted resistance is being discussed.

Technician A says that unwanted resistance can be caused by a loose ground connectic

Technician B says that unwanted resistance can be caused by corrosion at a connectior

Who is correct?

a. Technician A

c. Both Technician A and B

b. Technician B

d. Neither Technician A nor Technician B

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Engineering

What is the weight of a glider with a mass of 5.3 grams? (Hint: watch your units!)

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Engineering

Choose the options below that are true for the entropy of a substance. Select all that apply: Heavier atoms possess greater entropy at a given temperature than lighter atoms. The weight of an atom has no effect on entropy. Molecules with greater numbers of atoms are associated with lower entropy. The entropy of a substance is influenced by the structure of the particles that comprise the substance.

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Engineering

A 200‑m rigid vessel contains a saturated liquid‑vapor mixture with a vapor quality of 75%. The temperature of the vessel is maintained at 393°K. What is the total mass of the liquid‑vapor mixture inside the vessel?

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Engineering

Why is a switch different than a hub

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Engineering

Car crashes in the United States result in high costs. In

what areas do these high costs occur?

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Engineering

An average person generates heat at a rate of 84 W while resting. Assuming one-quarter of this heat is lost from the head and disregarding radiation, determine the average surface temperature of the head when it is not covered and is subjected to winds at 10°C and 29 km/h. The head can be approximated as a 0.2-m-diameter sphere. Assume a surface temperature of 15ºC for evaluation of μs. The properties of air at 1 atm pressure and the free stream temperature of 10°C are k

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Engineering

1. What is the linear distance traveled in one revolution of a 9 in diameter wheel?

2. An industrial water shutoff valve is designed to operate with 15 Ib of effort force. The valve will encounter 155 Ib of resistance force applied to a 0.85 in diameter axle. What is the actual mechanial advantage of the sytem?

3. If the diameter of the wheel is 10.5 inches, what is the efficiency of the wheel and axle system?

4. A block and tackle system with 8 supporting strands is used to lift materials in a manufacturing facility. The motor being used to wind the cable in the pulley system can provide 200 Ib of force. What is the ideal mechanical advantage of the pulley system?

5. Ideally what is the maximum weight of materials that can be lifted?

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Walker Castaneda

Engineering

Collin has a credit card bill of $3,000. He makes only the minimum payment and is always close to the limit on his credit card. Is Collin using credit responsibly?

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Engineering

What is 90 to the power of 46

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Engineering

EMB agar is a medium used in the identification and isolation of pathogenic bacteria. It contains digested meat proteins as a source of organic nutrients. Two indicator dyes, eosin and methylene blue, inhibit the growth of gram-positive bacteria and distinguish between lactose fermenting and nonlactose fermenting organisms. Lactose fermenters form metallic green or deep purple colonies, whereas the nonlactose fermenters form completely colorless colonies. EMB agar is an example of which of the following? A selective medium, a differential medium, and a complex medium

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