The proper way to discharge a capacitor is to:

A) Connect a jumper wire across the terminals.
B) Apply 230 volts to the terminals for a short period of time.
C) Connect a 20,000 ?, 2 W resistor across the terminals.
D) Short across the terminals with a large, insulated screwdriver.


C

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The mixture is not stable and forms two liquid phases. One of the phases has a composition of 10% component 1, while other phase has a composition of 75% of component 1.

Consider the figure that provides the molar Gibbs free energy of mixing as a function of composition for a binary mixture.

If the overall composition of the mixture is 30% of component 1, is the mixture stable? If not, what are estimates of the compositions of the liquid phases that are in equilibrium?

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________: the rate of exchange of pairs of consumption goods or services to leave utility or satisfaction unchanged.

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

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The area of the metal's surface that is melted during the welding process is called the ____ surface.

A. parting B. cutting C. faying D. assembling

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Answer the following statements true (T) or false (F)

1. In a typical stress-strain diagram of a material, the stress is generally plotted along the vertical axis. 2. The stress-strain diagram of mild steel is nearly a straight line up to the yield point. 3. The primary purpose of longitudinal steel bars in a reinforced concrete beam is to overcome the weakness of concrete in tension. 4. Air is a good thermal insulator, provided that it exists in large volumes. 5. A wet or moist material provides a higher R-value than if the same material is dry.

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