You push a heavy crate out of a carpeted room and down a hallway with a waxed linoleum floor. while pushing the crate 2.5 m out of the room you exert a force of 385 n; while pushing it 10 m down the hallway you exert a force of 130 n. to slow it down you exert a force of 350 n through a distance of 2.0 m, opposite to the motion. how much work do you do in all?

Which articulations allow for greatest range of motion?

Clothes dryer uses about 7 amps of current from a 240 volt line. how much power does it use?

To understand the behavior of the electric field at the surface of a conductor, and its relationship to surface charge on the conductor. a conductor is placed in an external electrostatic field. the external field is uniform before the conductor is placed within it. the conductor is completely isolated from any source of current or charge. part a: which of the following describes the electric field inside this conductor? it is in the same direction as the original external field. it is in the opposite direction from that of the original external field. it has a direction determined entirely by the charge on its surface. it is always zero. part b: the charge density inside the conductor is: 0non-zero; but uniformnon-zero; non-uniforminfinite part c: assume that at some point just outside the surface of the conductor, the electric field has magnitude e and is directed toward the surface of the conductor. what is the charge density η on the surface of the conductor at that point? express your answer in terms of e and ϵ0