An object travels 15 m in 3 s what is its speed ?

How have the competing explanations' experiments on atoms affected the development of the atomic model?

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?

In an experiment, how can i change human errors? be specific.