To upgrade means to add more ______ to a computer.
A. speed
B. data
C. bandwidth
D. RAM
Answer: D. RAM
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The variation of fluid pressure with height is described by the differential equation:
What will be an ideal response?
Technician A says the magnetic pick-up may be tested using a voltmeter to measure the AC voltage during cranking. Technician B says the Hall-effect sensor produces a square wave pattern on an oscilloscope. Who is correct?
A. Technician A B. Technician B C. Both A and B D. Neither A nor B
A dc, separately excited motor drives a conveyor belt (constant torque). The terminal voltage of the motor is controlled by a full-wave, ac/dc converter. When the conveyor belt is fully loaded, the triggering angle is adjusted so that the average armature voltage is 150 V, the average armature current is 15 A, and the speed of the motor is 400 rpm. The armature resistance of the motor is 1 ?. The armature current of the motor is continuous. Calculate the following:
a. Load torque b. Triggering angle if the voltage on the ac side is 240 V (rms) c. Steady-state speed of the motor if the triggering angle is changed to 60°
A 5-year plan to raise extra funds for public schools involves an “enrichment tax” that will raise $56 for every student the first year, increasing by $1 per student per year thereafter. There are 50,000 students in the district in year one, 51,000 in year 2, with increases of 1000 students per year thereafter. Calculate the future worth in year 5 of the enrichment plan over a 5-year planning period at an interest rate of 8% per year. Solve this problem using (a) tabulated factors, and (b) a spreadsheet.
What will be an ideal response?