Which statements best describe conduction? check all that apply

3. a lunar exploration vehicle was created by a research team. it weighs 3,000 kg on the earth. it needs an acceleration of 10 m/s2 on the moon. in order to have the same acceleration, what will be the net force acting on the vehicle on the earth?

Ais a machine that makes work easier when a single force is applied. a simple machine b compound machine c endangered machine d complex machine

What practical value did astronomy offer to ancient civilizations?