A ____ beam atomic clock is used to produce the pulses that are transmitted by the radio station WWV.
A. rubidium
B. cesium
C. francium
D. lithium
Answer: B
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Flowers to be used in arrangements are called _____
a. potted plants c. cut flowers b. flowering plants d. carnivorous
Technician A says that circuits using semiconductors may also be known as solid state circuits. Technician B says that the process of introducing a precise amount of impurity to a pure semiconductor material is known as doping. Who is right?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
Hip roofs covering a whole house have a minimum of ____ planes, and those covering porches or additions have at least three.
A. two B. four C. five D. six
Vitally important is evidence of good rear feet and leg structure and:
A. mobility B. endurance C. speed D. balance