Aflat uniform circular disk has a mass of 3.00 kg and a radius of 70.0 cm. it is suspended in a horizontal plane by a vertical wire attached to its center. if the disk is rotated 2.50 rad about the wire, a torque of magnitude 0.0600 n m is required to maintain that orientation.
calculate (a) the rotational inertia of the disk about the wire
(b) the torsion constant, and
(c) the angular frequency of this torsion pendulum when it is set oscillating.

Apositive charge moves in the direction of an electric field. which of the following statements are true? check all that apply. check all that apply. 1.the potential energy associated with the charge decreases. 2. the electric field does positive work on the charge. 3. the electric field does negative work on the charge. 4. the potential energy associated with the charge increases. 5. the electric field does not do any work on the charge. 6. the amount of work done on the charge cannot be determined without additional information.