If a crate has a weight of 50N on Earth, what is it's mass?

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 special about a dc circuit ?

If y gets smaller as x gets bigger and y have an relationship?