This question makes very, very little sense. There is such a thing as the doctrine of lis alibi pendens, and some states have rules of civil procedure akin to South Carolina's Rule 12(b)(8). But your question is written so poorly that it is difficult to know what you are asking.
The magnitude of the resultant force in the case of the concurrent forces in equilibrium.
things that do not run back to back
Concurrent jurisdiction
Concurrent jurisdiction is when more than one court has jurisdiction over a case. These means that they have jurisdiction over the same case at the same time.
things that do not run back to back
Concurrent session (or sentence) means 2 different sessions (or sentences) that will run at the exact same time.
The magnitude of the resultant force in the case of the concurrent forces in equilibrium.
"Concurrent" means that it happens at the same time. In this case, presumably one force is applied at the same time as some other force.
Concurrent jurisdiction
Concurrent jurisdiction
Concurrent.
Either the state or federal court.