The circuit in Figure P5.56 is used as a variable delay in a burglar alarm. The alarm is a siren with an internal resistance of 1 k?. The alarm will not sound until the current i0 exceeds 100?A. Use a graphical or numerical solution to find the range of the variable resistor R for which the delay is between 1 and 2 s. Assume the capacitor is initially uncharged.
Analysis:
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Which of the following was NOT among the regional groups that formed the solid political base of the Republican party in the late 19th century?
A. immigrants living in the large Northeastern cities. B. Union Civil War veterans of the Grand Army of the Republic. C. Southern black freedmen D. Midwestern farmers and small merchants. E. rural and small-town Northeast residents.
Each year, Americans spend over $___ billion on companion animals
a. 5 c. 25 b. 15 d. 45
Corrosion is not a contributor to voltage drop.
Answer the following statement true (T) or false (F)
Which sensors do most vehicles use if equipped with electronic suspension?
A) Lateral accelerometer sensors B) Steering wheel position sensors C) Height sensors D) All of the above