A5kg block is pulled across a table by a horizontal force of 40n with a frictional force of 8n opposing the motion. ? confused..

catya that's not even a b or c

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.

you need to stop taking that class