Aroom that is 40 feet by 65 feet with a 10-foot-high joisted ceiling will be protected with heat detection. the joists are 12 inches deep and run in the 40-foot direction. the engineer specified heat detectors with a 50-foot listed spacing. how many heat detectors are required for this room?

the electric field is a “force field” around a charged object that illustrates the direction the electric force would push an imaginary 

the rearrangement of particles in a physical change. hope this

answer a fan shaped mass of sediment deposited at the base of a mountain front do to an abrupt change in stream gradient;