Necesito una persona que me diga todo todo todo todo sobre las palancas rápido o maquinas simples

Asap! how does the distance between two objects affect the force of gravity? how is the moon dependent on the sun?

The theories on the expansion of galaxies maybe re-examined to strengthen science should not be tested to strengthen science will weaken scientific knowledge if they change will become laws if they don't change

Asmall population of chimpanzees lives in a habitat thant undergoes no change for a long period of time. how will genetic drift affect this population