A0.50g leaf falls from a branch 4.0m off the ground to a bird's nest 2.5m off the ground. how much gravitational potential energy did the leaf loose?

Which is gerrymandering a problem for the house of representatives but not the senate? a.) members of the house are greatly influenced by their political parties. b.) senators serve longer terms than members of the house. c.) members of the house are more influenced by changes in public opinion. d.) senators are elected in statewide elections rather than in specific districts.