Solve the all parts of given problem:
Problem: Two dogs pull horizontally on ropes attached to a post; the angle between the ropes is 65.0o. Dog A exerts a force of 254N, and dog B exerts a force of 296N.
Part A: Find the magnitude of the resultant force?
Part B: Find the angle the resultant force makes with the rope of dog A?
I need help to determine the magnitude of the resultant force.