What is the mass and weight of a 10kg object on the moon where the force of gravity is 1/6-th that of the earth's?

Rank the torques on the five doors shown in the figure above from least to greatest. note that the magnitude of all the forces is the same

Why is alternating current more effective at long–distance travel than direct current? a. the power lines are made out of conductors. b. transformers increase or decrease voltage as needed. c. the ac generator is more efficient. d. ac has lower voltage than dc.

Plss anybody know how to do this? ? i need the answers from a through d