Aspherical cavity is excised from the inside of the sphere. the cavity has radius a4 and is centered at position h⃗ , where |h⃗ |< 34a, so that the entire cavity is contained within the larger sphere. find the electric field inside the cavity. express your answer as a vector in terms of any or all of ρ (greek letter rho), ϵ0, r⃗ , and h⃗ .