Astudent wants to use indirect measurement to find the thickness of a
sheet of newspaper. in a 50-centimeter tall recycling bin, she finds 50
sheets of newspaper. each sheet in the bin is folded in fourths. design a
procedure for the student to use that would allow her to measure the
thickness of one sheet of newspaper with little or no source of
experimental error. the student has a meter stick and a calculator.

Because light travels in a straight line and casts a shadow, isaac newton hypothesized that light is

How to tell if a molecule is polar or nonpolar with electronegativity

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