If you apply $40$ N $(9\mathrm{.}0$ lb$)$ of force at a distance of $0\mathrm{.}2$ m $(7\mathrm{.}9$ in$)$ from the center, how much torque are you applying?

If the nut is rusted to the bolt and will not turn, how much work is being done with the wrench?

If the nut breaks free and the same torque as in part a$)$ is exerted through one complete revolution, how much work has been done?