HELP! WILL MARK BRAINLIEST

Two technicians are discussing a resistance measurement between the can-h and can-l wires. technician a says this measurement should be done with the ignition switch in the "run" position. technician b states that a measurement of 0 ohms indicates an open in the network. which technician is correct?

When you push downward on a book at rest on a table, you feel an upward force. does this force depend on friction? defend your answer.

The coefficient of friction is a number that represents the resistance to sliding between two in contact with one another.