"spent" nuclear fuel rods come out of a reactor and need to be handled carefully. why must power plants spend so much money and be so cautious in dealing with these materials?

Hey student studies gravity using objects that have the same mass which two objects have the greatest gravitational force acting between them a. 100kg 1.0m 100kg b. 100kg 2.0m 100kg c. 100kg 2.0m 100kg big d. 100kg big 3.0m 100kg big