So after I find the equation for the Electric field of the cylindrical shell, do I just simply add it to the other equation i.e. E-Field of wire+ E-field of Cylinder?
Homework Statement
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A wire with linear charge density lambda is surrounded by a cylindrical conducting shell with radius r and surface charge density sigma. Find an expression for the electric field (magnitude and direction) as a function of distance d from the wire, on an axis...
Dark Matter was first theorized in 1933 by Fritz Zwicky but was not known as Dark Matter, it was known as the Missing Mass Problem. Zwicky measured the gravitational mass of the galaxies within the Coma galaxy Cluster. He found that the mass measured was much higher than what they would have...
Trollcast basically summed it up. Even when our Sun becomes a red giant, we will not be able to tell until about 8 minutes after the actual event. But at the point we find it out. We will all be killed so it really won't matter.
Well when the Sun becomes a red giant in approx. 5 billion years the Sun will expand to a little past Mars' orbit. So as soon as the Sun's core starts to shrink and become denser the outermost layers will expand and will engulf the Earth. Before the outermost layers reach us the Earth will be...