____________________ are useful for trying out ideas for mechanisms and simple machines to see if the ideas should be further developed.

Fill in the blank(s) with the appropriate word(s).


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What would you say about the code values for numbers of plumbing fixtures that must be installed in buildings?

A) Reduced numbers would generally be adequate, but not allowed. B) They are sufficient based on years of industry experience. C) Designing for higher fixture counts is usually advisable.

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The maximum current for a HIGH output on a standard TTL gate is

A) -10 mA. B) -1 ?A. C) -400 ?A. D) -10 ?A.

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In a sample of 20 men, the mean height was 178 cm. In a sample of 30 women, the mean height was 164 cm. What was the mean height for both groups put together?

What will be an ideal response?

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_________________________ are case-hardened cap screws that secure the seat track to the floor structure.

Fill in the blank(s) with the appropriate word(s).

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