Given that the rates of breakdown of Benzocaine, a local anaesthetic are 16 x 10 second 15 10-8 sec at 30°C and 25°c respectively. Compute the shelf-life of an ampoule (Injection) of the
drug stored in the fridge at 5°C if the compendia provided a preparation of the drug shall contain
not less than 80% of benzocaine.

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→∞.