When and where did the "dust bowl" occur in the United States? What was its cause?
What will be an ideal response?
The "dust bowl" occurred in the southern Great Plains during the early 1930s as a result of drought and farming of highly erodible lands.
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Which of the following termination classes is the only one that provides a seal against external elements
a. Class 1 b. Class 2 c. Class 3 d. Class 5
What does a landscape cloth do?
What will be an ideal response?
The subsequent problems deal with the circuit below where:Vs=2 sin (100 t) V, R1=1k?, R2=1k?, and C=1µfAssume the circuit is operating in steady state (transients already gone).
For very high input frequencies [Vs = 2 sin (?t), where ? is large], the voltage across C approaches
A. 1 sin (100t) B. 0 C. 2 sin (100t) D. 2 E. 1
Which type of transducer might be used on an electronic scale?
A) a thermistor B) a phototransistor C) a strain gage D) a photodetector