The forward bias voltage required for an LED is ________
A) 1.5 to 2.2 volts B) 0.3 to .05 volt C) 4.5 to 5.1 volts D) 0.5 to 0.7 volt
A
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The oxygen equivalence number of a weld is a number that can be used to predict properties such as hardness, strength, and ductility. The article “Advances in Oxygen Equivalence Equations for Predicting the Properties of Titanium Welds” presents several equations for computing the oxygen equivalence number of a weld. One equation, designed to predict the hardness of a weld, is X=O+2N+(2/3)C, where X is the oxygen equivalence, and O, N, and C are the amounts of oxygen, nitrogen, and carbon, respectively, in weight percent, in the weld. Suppose that for welds of a certain type, 
a. Find 
.
b. Suppose the weight percents of O, N, and C are independent. Find 
.
A new engineering graduate who started a consulting business borrowed money for 1 year to furnish the office. The amount of the loan was $45,800, and it had an interest rate of 10% per year. However, because the new graduate had not built up a credit history, the bank made him buy loan-default insurance that costs $900. In addition, the bank charged a loan set-up fee of 1% of the loan principal. What was the effective interest rate the engineer paid for the loan?
What will be an ideal response?
A right angle is an angle of 90 degrees.
Answer the following statement true (T) or false (F)
What are the two effects of reducing the voltage applied to the motor?
What will be an ideal response?