Find the electric force vector on a particle of charge q located at the origin, which is also the center of curvature for a semicircular arc with radius w in the xy-plane that carries a uniform linear charge density lambda and exists only in the negative-x half of the plane. answer in terms of epsilon.
b. an annulus with inner radius w and outer radius 2w is located in the xy-plane, centered on the origin. it bears a uniform area charge density σ. at its exact center is a point charge q. find the resultant electric field vector on the z axis at z=3w. answer in terms of the permittivity.

There is no graph to look at on here, but i shall explain them to you. a line graph is just in its title it’s a graph with a line running through the dots to show an increase or decrease. a bar graph is used to show how much or how little something is so a comparison. a scatter plot is used to graph points to tell the data. and i don’t know what a histogram is.

Answertraveling around a circular trackexplanation"traveling around a circular track" is the best answer as you could be traveling around a circular track at a constant speed. your velocity would therefore have the same magnitude but will always be constantly direction. since acceleration is the rate of change of velocity, the rate of change will only involve the direction of velocity and not the magnitude.wrong choices: "an object at rest" does not accelerate at all"increasing speed while traveling around a curve" means that the acceleration will not be constant due to only change in direction; it will be constant due to both magnitude and direction"an object in free fall" does not necessarily change direction 

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