Earth's orbit around the sun is slightly elliptical. thus, earth actually gets closer to the sun during part of the year. what happens to earth's orbital speed when it is closer to the sun?

a)earth's orbital speed is less when it is closer to the sun than when it is farther from the sun.
b)earth's orbital speed is the same whether it is closer to the sun or farther from the sun.
c)earth's orbital speed is greater when it is closer to the sun than when it is farther from the sun.

What determines the amount of inertia an object has

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

What causes the development of most clouds and precipitation in the atmosphere?