PLSS HELP OH GOD

How are the forces on an object added or subtracted to get net force?

Alinear relationship would look like a straight line on the graph. it could have a positive negative or 0 slope. so it could be a line potentially going in any direction but it must be perfectly straight.

Answer sample (c); // would be best because the percentage of the energy in an incident wave that remains in a reflected wave from this material is the smallest;

Hey did u get the answer?

Ibelieve the answer is arteries