When using nonmetallic-sheathed cable or armored cable, never use the bare equipment grounding conductor as a(n) conductor, and never use the grounded circuit conductor as an equipment grounding conductor.

Gordon is going for a run through the park, but it is cold outside. the low outside temperature could affect his personal safety.

Which of the following are guidelines to follow for obtaining accurate observations

In an old-fashioned amusement park ride, passengers stand inside a 3.0-m-tall, 5.0-m-diameter hollow steel cylinder with their backs against the wall. the cylinder begins to rotate about a vertical axis. then the floor on which the passengers are standing suddenly drops away! if all goes well, the passengers will “stick” to the wall and not slide. clothing has a static coefficient of friction against steel in the range 0.60 to 1.0 and a kinetic coefficient in the range 0.40 to 0.70. part a what is the minimum rotational frequency, in rpm, for which the ride is safe? express your answer using two significant figures. f f = rpm