Mrs. buckley asked her physical science class to look at the graph and tell which of the following explanations are most likely true. option a: from 12 to 24 minutes the bicyclist was coasting down a hill. option b: at 35 minutes the bicyclist was not moving. option c: from 6 to 12 minutes the bicyclist was increasing his speed. option d: from 24 to 30 minutes the bicyclist was traveling down a steep hill. question 8 options: all of the options are most likely true. only option c is true. option a and b are true. option c and d are true.

Intro: a solid ball of radius rb has a uniform charge density ρ. part a: what is the magnitude of the electric field e(r) at a distance r> rb from the center of the ball? express your answer in terms of ρ, rb, r, and ϵ0. part b: what is the magnitude of the electric field e(r) at a distance r express your answer in terms of ρ, rb, r, and ϵ0. part c: let e(r) represent the electric field due to the charged ball throughout all of space. which of the following statements about the electric field are true? check all that apply. e(0) = 0 e(rb)=0 limr→∞e(r)=0 the maximum electric field occurs when r=0 the maximum electric field occurs when r=rb the maximum electric field occurs as r→∞.