The mass of the moon is about 1/81 of the earth and the radius is about 1/4 of the earth. what is the acceleration due to the gravity of the surface at the moon?​

Which of the following is a direct benefit of the use of assembly lines in production a. laws against theft fraud and coercion are needed to protect free choice. b. the government needs to plan efficient outcomes. c. competition among producers by itself cannot ensure a wide range of consumer choices. d. works pressure the government to guarantee minimum wages