Peço ajuda por favor

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?

What is a carrier wave and how does it affect what you hear on the radio

Which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?