A steam governor uses negative feedback to control the speed of a steam engine. Suppose a steam governor has two balls that are cach rotating with a tangential speed of 3.7 m/s . The balls are 0.10 m from the rotation axis, and the centripetal force on each ball is 670 N. What is the mass of one of the balls ?

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.

The energy released by a nuclear fusion reaction is produced when

What is the relationship between the direction of motion of the balloon and the wind currents