Question 12 (2 points) Which elements are least reactive?
metals
halogens
actinides
noble gases

Aman throws a football straight into the air. as it rises, it slows down. which type of energy is the football gaining?

Brutus, the dog, is pulling a bone to the left with a force of 20 n. lassie, another dog, is pulling a bone to the right with a force of 18n. what is the net force? a. b. c.

The amount of potential energy possessed by an elevated object is equal to what?