The main disadvantage of using buffers is ________
A) it inverts the buffered signal B) it increases part costs
C) it increases power dissipation D) it increases signal propagation delay
D
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If steam flows through a 28-cm-diameter pipe at 6 MPa and 600°C with a velocity of 2 m/s, the mass flow rate is nearest:
A) 2.9 kg/s B) 2.3 kg/s C) 1.9 kg/s D) 1.1 kg/s
Scholars dispute whether the Civil War marked a watershed in American history for all of the following reasons except
A. racial inequality persisted long after the war. B. industrial growth of the post-Civil War years had its real roots decades earlier in the Jacksonian era. C. regional differences between the North and South continued, even into the present. D. the Union victory did not have a significant effect on the constitutional expansion of federal government power. E. the Civil War may have retarded overall national industrialization rather than advancing it.
Urban areas are shrinking rapidly in the United States
Indicate whether the statement is true or false
Most technicians today use lab scopes to diagnose computer-controlled circuits.
Answer the following statement true (T) or false (F)