What is the scientific process? Why is it important to observe, not just see? What is the difference?
What will be an ideal response?
The process includes observation, hypothesis, experimentation, and analysis and interpretation. The process dictates certain elements that must be contained, to make sure that what we are doing is testable and repeatable, in a word, provable.
Observations require thought and comparison to our present knowledge. Seeing is just seeing without attaching any particular significance to what we see.
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____________________ diagrams show electrical components in their electrical sequence without regard for physical location.
Fill in the blank(s) with the appropriate word(s).
Long arc lengths produce less spatter.
Answer the following statement true (T) or false (F)
An electric switch manufacturing company is trying to decide between three different assembly methods. Method A has an estimated first cost of $40,000, an annual operating cost (AOC) of $9000, and a service life of 2 years. Method B will cost $80,000 to buy and will have an AOC of $6000 over its 4-year service life. Method C costs $130,000 initially with an AOC of $4000 over its 8-year life. Methods A and B will have no salvage value, but Method C will have equipment worth 10% of its first cost. Perform both (a) future worth, and (b) present worth analyses to select the method at i = 10% per year.
What will be an ideal response?
The horizontal braces called walers are held in place on the outside of forms by _____
a. wedge bolts b. form ties c. waler clips d. bracing pins