G Given the force vector F, the lever arm r, and the torque τ, which of the following is an expression for torque? τ = r ⨯ F F = r ⨯ τ τ = F ⨯ r τ = −r ⨯ F The weights hanging off the pulley exert a tension force on the edge of the inner disk. In what direction is the torque exerted by this force?

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.