When a material is subjected to a change in ____, it may expand, contract, conduct, or reflect heat.

A. ductility
B. strength
C. permeability
D. temperature


Answer: D

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The extreme heat of the Earth’s interior is believed to be generated by ____

a. volcanic activity c. radioactive decay b. internal earthquakes d. molten metals

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The State of Chiapas, Mexico, decided to fund a program for improving reading skills in elemen­tary school students. The first cost is $300,000 now, and an update amount of $100,000 every 5 years forever. Determine the perpetual equiva­lent annual cost at an interest rate of 10% per year.

What will be an ideal response?

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In the above figure, when the wiper arms of all three variable resistors are adjusted fully downward, the voltage at R2 is __________.

A. 0V B. 5V C. 7.5V D. 15V

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Branch ducts should always use what component to balance the air to the individual areas?

What will be an ideal response?

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