Sixteen joules of work was required to lift a 2 kilogram object from the floor to a table. How much energy was gained by the 2 kilogram object if friction was only 1 J?

Astronomers studying the planet of rhombus have detected sedimentary rock on its surface. one astronomer wonders if material in this sedimentary rock used to be in igneous rock deep in rhombus’s interior. can igneous rock become sedimentary rock? explain your answer.