Unit Activity Earth and Space 6 of 8
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Part 6
How do H-R diagrams help scientists compare new stars with the Sun? In your answer, name one type of
data that H-R diagrams do not show
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Individuals who live below the poverty line get seriously ill more often than those who do not what could be the hidden variable in this situation?

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

Anika asks eva to roll a basketball and then a bowling ball to her. which requires more force to roll, and why?