The energy change that takes place when the atoms of materials are rearranged to form new materials from the same atoms is:
A) The energy of centrifugal force. B) Kinetic energy.
C) The energy of centripetal force. D) Chemical energy.
D
You might also like to view...
Maximum allowable ceiling temperatures are typically _________ less than the temperature rating of the heat detector.
A. 1? F B. 5? F C. 10? F D. 20? F
In water jet cutting, ____________________ are added when hard materials such as metals are being cut.
Fill in the blank(s) with the appropriate word(s).
Reel mowers:
A. are preferred for high quality cuts. B. require more power than rotary mowers. C. have a chopping-like action. D. are easier to maintain than rotary mowers.
What type of refrigerants are normally used in CO2 cascade refrigeration systems?
A) CO2 refrigerant in the high-temperature system and HFC refrigerant in the low-temperature system B) HFC refrigerant mixed with CO2 in both systems C) HFC refrigerant in the high-temperature system and CO2 in the low-temperature system D) CO2 refrigerant in both the high- and low-temperature systems