what speed is required to produce a force of 0.824 N on a charge of 17.1 microcoulombs that is inhjected perpendicular to a uniform magnetic field of 0.313 teslas

Acar drives toward the right over the top of a hill, as shown below. which arrow represents the centripetal acceleration? w x y z

Amira pulls a 3 pound wagon 4 feet. how much work has she done?

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.