Ms. Torres uses a communication system with her son. This is…

Ms. Torres uses a communication system with her son. This is a manual system that only uses various hand shapes and four-hand locations. She uses this communication system in Spanish and in English since it only requires her to focus on the consonants of the target language. What type of communication is Ms. Torres most likely using with her son?

A particle that is in equilibrium has four force vectors in…

A particle that is in equilibrium has four force vectors in different directions acting on it.  The magnitudes of the force vectors are F1 = 5.1 N, F2 = 3.2 N, and F3 = 5.2 N and F4 = unknown. Identify the following statement that is TRUE for the particle system as described.