Aspherical shell, of radius r, carrying a uniform surface charge σ, is set spinning at angular velocity ω (a) find the vector potential it produces at point r (both r r and r2 r). [20 points) (b) find the magnetic field inside this spherical shell. [10 points] (c) find the magnetic field outside this spherical shell.

Answer: it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.explanation:   we have equation of motion ,where s is the displacement, a is the acceleration, u is the initial velocity and t is the time taken.average velocity = displacement/ time taken.average velocity = 10.69 miles/hr = 10.69*1.6*1000/(60*60) = 4.75 m/s4.75 = s/ts = 4. 1we also have acceleration = 2.18 m/s², initial velocity = 0 m/sso it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.