Maria is pulling a wagon with 40 N to the right and Claudia is helping her by pushing the wagon with 30 N to the right. Their rude next-door neighbor, Sam, runs up and starts pulling the wagon to the left with 65 N. What is the net force on the wagon?

Melting and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.

1. list three scientific reasons cockroaches may fly.

What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?