The correct answer is A. Installation of rigid metal conduit requires grounding and the grounding equipment used may weaken the structure.
Gas stations or sewage treatment facility
Answer
Inertia is the resistance of any physical object to any change in its velocity. This includes changes to the object's speed, or direction of motion. An aspect of this property is the tendency of objects to keep moving in a straight line at a constant speed, when no forces act upon them.
