A sphere of radius R carries a surface-charge distribution σ in the region of θ ∈ [π/2−α, π/2 +α], α is a fixed parameter. The rest of the sphere has no charge. The sphere is rotated about the z axis with constant angular velocity ω. (a) (20 pts) Find the magnetic dipole moment ~m. (b) (10 pts) Demonstrate that your solution is correct by considering two limits: α → π/2, α → 0. In the second limit assume that the total current is held fixed.

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A17,250 kg rocket is pushed with a thrust of 6,450,284 n. what is the acceleration of the rocket?

Asubject in a clinical research trial experiences a serious, unanticipated adverse drug experience. how should the investigator proceed, with respect to the irb, after the discovery of the adverse event occurrence? a. do not report the adverse drug experience to the irb since it is a common adverse experience.b. report the adverse drug experience to the irb only if there are several other occurrences.c. report the adverse drug experience as part of the continuing review report.d. report the adverse drug experience in a timely manner, in keeping with the irb's policies and procedures, using the forms or the mechanism provided by the irb.