(10 points) a cylindrical shell of dielectric of permittivity and inner and outer radii a and b surrounds a very long, conducting cylinder of radius a. the system is placed in an electric field e0, perpendicular to the axis of the cylinder, (a) (8 points) find the potential in the regions r < a, a < r < b, and r > b. (b) (2 points) find the charge per unit area at r = a as a function of the angle measured from the direction of e0.

A) acceleration. this seems to be the one that makes sense.

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 

It maybe because uranus is made of gas but uranus has a solid core in the middle