A point charge qı = -4.00 nC is at the point x = 0.600 meters, y = 0.800 meters, and a second point charge q2 = +6.00 nC is at the point x = 0.600 meters, y = 0. Calculate the magnitude E of the net electric field at the origin due to these two point charge Express your answer in newtons per coulomb to three significant figures. > View Available Hint(s) E = 131 N/C Submit Previous Answers v Correct Part B What is the direction, relative to the negative x axis, of the net electric field at the origin due to these two point charges. Express your answer in degrees to three significant figures. • View Available Hint(s) ? up from the negative x axis

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Proper Length

The theory of special relativity explains the connection between space and time to objects that move in a straight line at a constant speed. The objects move at the speed of light. When an object approaches light speed, its mass is endless and cannot move faster than light. The most crucial postulate of Einstein's special relativity is that the laws of nature do not change in each frame of reference.