Describe how the synchronous counter operates.
What will be an ideal response?
A synchronous counter operates as follows. Initially the counter is reset with both flip-flops in the 0 state. When the first clock pulse is applied, the first flip-flop toggles and the output goes high. The second flip-flop does not toggle because of the delay from the input to the actual changing of the output state. Therefore, there is no change in the second flip-flop output state. When the second clock pulse is applied, the first flip-flop toggles and the output goes low. Because there is a high from the output of the first stage, the second stage toggles and its output goes high. After four clock pulses, the counter recycles to its original state.
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Why is it widely believed that the allotropic transformation is a diffusionless martensitic type?
What will be an ideal response?
A resistor drawn with an arrow through it is the symbol for a variable resistor.
Answer the following statement true (T) or false (F)
A sample of seven concrete blocks had their crushing strength measured in MPa. The results were
1367.6 1411.5 1318.7 1193.6 1406.2
1425.7 1572.4
Ten thousand bootstrap samples were generated from these data, and the bootstrap sample means were arranged in order. Refer to the smallest mean as 
, the second smallest as 
, and so on, with the largest being
a. Compute a 95% bootstrap confidence interval for the mean compressive strength, using method 1 as described on page 391.
b. Compute a 95% bootstrap confidence interval for the mean compressive strength, using method 2 as described on page 391.
c. Compute a 99% bootstrap confidence interval for the mean compressive strength, using method 1 as described on page 391.
d. Compute a 99% bootstrap confidence interval for the mean compressive strength, using method 2 as described on page 391.
The two air flow patterns for cooling towers are ____________________ and ____________________.
Fill in the blank(s) with the appropriate word(s).