What force is demonstrated in objects with like charges?
A. attraction
B. repulsion
Answer: B
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Resistance of a material to a cyclic load, one that varies in direction and/or magnitude, is called ____.
A. hardness B. fatigue strength C. ductility D. impact strength
A geothermal heat exchange bed costs $126 per ho?ur to excavate. If it takes 3 hours to excavate the bed, the total cost for digging the well is $42.
Answer the following statement true (T) or false (F)
By the time of the fabled London World's Fair in 1851, American products were prominent among the world's commercial wonders, which included all of the following EXCEPT
A. Ford's automobile. B. Goodyear's vulcanized rubber goods. C. Colt's firearms. D. Morse's telegraph. E. McCormick's reaper.
Taper pins, cotter pins, and spring pins are examples of quick release fasteners.
Answer the following statement true (T) or false (F)