Astar is moving toward the earth with a speed of 0.9 c (90% the speed of light). it emits light, which moves away from the star at the speed of light. relative to us on earth, the speed of the light moving towards us (emitted by the star) is

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