What is the speed of a wave that has a wavelength of 0.5 meters and a frequency of 65Hz?

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?

The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island

The speed of light can be used to measure the