When did it become illegal to "intentionally" vent CFC refrigerants to the atmosphere? Give the month, day, and year.

What will be an ideal response?


The date was July 1, 1992.

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________: the sum of all individual categories of production costs that do vary with the level of production.

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

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Soils formed from ____ deposits cover most of the Midwest

A) glacial B) loess C) alluvial D) marine

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What damper is the best choice when fully opened and fully closed are the primary damper positions?

a. Parallel blade b. Opposed blade c. Motorized d. Lateral blade

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Let the voltage across a load be Vrms = 530?60o V and the current through the load be Irms = 8.5?30o A. Find the complex power, apparent power, average power, reactive power, and power factor. Also, find the equivalent impedance, equivalent resistance, and equivalent inductance of the load. Draw the phasors for P, Q, and S. f = 60 Hz.

What will be an ideal response?

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