A small mass of 0.2kg is weld round in a horizontal circle at the end of the stream of length 0.5m at a constant angular speed of 4radius per sec calculate the angular speed of the object

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?

Could someone me find the answer to this problem.

Write down two additional questions about earth's magnetic field that will make your presentation more informative.