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Ariatnam, Najafi, and Morones (Journal of Professional Issues in Engineering Education And Practice, 2002) describe an overview of academies on horizontal directional drilling conducted to train engineers and inspectors for the California Department of Transportation. A pretest was administered on the first day prior to any instruction. Instruction and field experience were provided over a 3-day period, followed by a final test administered at the end of the last day. Although the average final test score of 75.27% was higher than the average pretest score of 55.61%, the difference was not significant.
a Identify the type of study described here.
b What is the purpose of administering a pretest?
Upon studying low bids for shipping contracts, a microcomputer manufacturing firm finds that intrastate contracts have low bids that are uniformly distributed between 20 and 25, in units of thousands of dollars.
Derive the Helmholtz's wave equation. Start your derivation from Maxwell's equations.
A base stationcellular communicationsystems lossless antenna has a maximum gain of 16 dB (above isotropic) at 1,900 MHz. Assuming the input power to the antenna is 8 watts, what is the maximum radiated power density (in watts/cm^2)
Assume that all variables reside in the memory and they are addressable as offsets from $t0. The value of A resides at the offset of 0. Generate the MIPS code for the aforementioned program segment.
When the starter motor, which draws 90A, is running the terminal voltage drops to 11V. What is the internal resistance of the battery What percentage of the chemical power is delivered to the starter motor
To transmit symbols, such as letters of the alphabet, RU computer modems use two frequencies (1600 and 1800 Hz) and several amplitude levels. A transmission is sent for a period of time T (known as the transmission or baud interval) and equals the..
Discuss the various ways to include conditional program flow control in 80x86 assembly programming. What are some limitations implementing this flow control when compared to higher level languages?
Two ammeters are put in parallel, and used to measure an unknown current. The unknown current is determined by adding the readings of the two ammeters. Ammeter #1 can read a maximum current of 50[A], and has a meter resistance of 2.35ohms.
It is required to use a peak rectifier to design a dc power supply that provides an average dc output voltage of 15 V on which a maximum of 1-V ripple is allowed. The rectifier feeds a load of 150 ohm.
The voltages at opposite ends of a 470Ω, ±5% resistor are measured as V1 = 12V and V2 = 5V. The measuring accuracy are ±0.5V for V1 and ±2% for V2. Calculate the current in the resistor and specify its accuracy.
in december 2007 what at the time was the largest in north america a solar voltaic power plant was activated at nellis
Convert function H(A, B, C) = (AB + C)(AC + B) into both the sum-of-products and product-of-sums forms. Obtain the truth table and express the function in both canonical forms: sum-of-minterms and product-of-Maxterms.
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