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1. Multnomah Falls in Oregon has sheer drop of 165 m. Estimate the change in water temperature caused by this drop.
2. An ‘‘air cushion'' vehicle is designed to traverse terrain while floating on a cushion of air. Air, supplied by a compressor, escapes through the clearing between the ground and the skirt of the vehicle.
If the skirt has a rectangular shape 3 × 9 m, the vehicle mass is 8100 kg and the ground clearance is 3 cm, determine the airflow rate needed to maintain the cushion and the power given by the compressor to the air.
Assume that the air speeds within the cushion are very low.
Two random variables have zero mean and variance of 16 and 36. Their correlation coefficient is 0.5. A). find the variance of the sum. B). find the variance of their difference C). Repeat (a) and (b) if the correlation coefficient is -0.5
What is the required current - The magnetic circuit shown in Figure is made of silicon steel, for which the B-H curve
A student lifts a weight (W) using a motor powered by solar cells to determine the efficiency of the solar cell/motor system. On the power meter the voltage reads V and the current reads I. The student lifts the weight a distance H in a time T.
Design a discrete transistor feedback current amplifier to provide a current gain of 30. - Verify the design with a computer simulation. Determine Ri f and Rof .
Explain Capacitance of parallel plates capacitor, Relative permitivity is 500, The area is one square meter, The distance between the plates is 0.001 meters
What is the frequency mode spacing for this length of Iaser? If it is possible to mode lock this Iaser, what would be the repetition rate and approximate pulse width of the output pulse when the line width of the Iaser is 10 GHz? State any assumpt..
Develop the Datapath; draw it under VISIO for this java code : input . x - the abscissa at which the linear interpolation is to be evaluated xi[]- the arrays of data abscissas yi[]- the arrays of data ordinates imax- size of the arrays xi[] and yi[]
About assignment on magnetic induction near a long wire
A CB transmitter is rated to supply 4 W of carrier power to a 50 Ohm load while operating from a power supply that provides 13.8 V. The nominal supply current is 1 A without modulation and 1.8 A with 80 % modulation.
A binary symmetric channel has an error probability of 0.005. How many of these channels can be cascaded before the overall error probability exceeds 0.1?
If the collector of a transistor is connected to the base terminal, the transistor continues to operate in the forward-active mode, since the B-C junction is not reverse biased biased. Determine the small-signal resistance, re=Vce/Ie
Each of these bands is split into two, allowing two operators. An operator is allocated 12.5 MHz in each direction. Each channel is allocated 30 kHz. If 21 channels are allocated for control, what is the total number of voice calls per operator.
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