How much work is done by a person who lifts a weight 2 meters off of the ground by using a force of 55 Newtons? O 27.5 Joules
O 57 Joules
53 Joules
O 110 Joules

How are elements arranged in a periodic table

Use this information to determine the number of calends electrons in the atoms. which of the following correctly compares the stability of the two atoms? a) both are unreactive b) both are highly reactive c) a is unreactive and d is reactive d) a is reactive and d is unreactive

Ants live on acacia trees in south america. the ants feed on sugars secreted by the trees. the trees provide room for the ants to live. the ants sting any other insect or animal that comes to eat the trees. what type of relationship is this?