In any triangle, the square of any side is equal to the sum of the squares of the other two sides minus twice the product of these two sides multiplied by the ____________________ of their included angle.
Fill in the blank(s) with the appropriate word(s).
cosine
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Which of the following pull stations require the user to lift a cover or open a door before operating the pull station?
a. Single-action b. Glass-break c. Double-action d. Key-operated
____ series bar joists are the strongest bar joists.
A. H B. I C. J D. K
A cylindrical hole is bored through a steel block, and a cylindrical piston is machined to fit into the hole. The diameter of the hole is 20.00 ± 0.01 cm, and the diameter of the piston is 19.90 ± 0.02 cm. The clearance is one-half the difference between the diameters. Estimate the clearance and find the uncertainty in the estimate.
What will be an ideal response?
How is photoperiod regulated in a commercial greenhouse?
What will be an ideal response?