Define U-factor.
What will be an ideal response?
U-factor measures how well a product prevents heat from escaping.
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In the accompanying figure, the synchronous motor is started as an induction motor by ____ the start button.
a. pulling b. releasing c. disconnecting d. pressing
Which of the following were NOT among the key decisions made by Roosevelt, Stalin, and Churchill at the Yalta Conference?
A. The Soviet Union would attack Japan within three months in exchange for territorial concessions. B. The Soviet Union would sponsor free elections in Poland, Bulgaria, and Romania. C. The Soviet Union would sponsor free elections in Poland, Bulgaria, and Romania. D. The Soviets and Americans would militarily withdraw from Europe after a peace treaty was signed. E. A new international peacekeeping organization, the United Nations, would be set up.
Which of the following are common materials used for insulation in residential construction?
A) Fiberglass, cellulose, and foam B) PVC, asbestos, and vermiculite C) Cement, asbestos, and gypsum D) Thermoplastic, PVC, and ABS
Given that energy forms can only be altered not eliminated by mechanical action, what is the energy of motion ultimately converted to by a vehicle brake system?
A. brake dust B. sound C. kinetic energy D. heat