When a theory is disproved by further evidence, which of the following occurs? a.) it should be considered a failure. b.) it adds to scientific knowledge. c.) it becomes a law. d.) new data must be found to support it.

Laboratory experiments, observational field studies, and model-building are all examples of different forms of scientific investigations.  in what way do laboratory experiments primarily differ from other forms of scientific investigations?   a.  a laboratory experiment is the only accepted form of investigation within the scientific community.  b.  studies about how things behave in nature or studies involving very large objects are best answered through laboratory experiments.  c.  laboratory experiments involve the identification and control of variables.  d.  data can only be generated through laboratory experiments, not other forms of investigation.

The velocity of car is 80.0 miles per hour. what is the velocity of car in meters per second? (1 km -0.621 miles) m/s

What is relative velocity? in which condition is relative velocity known by adding the velocity of the first body and that of the second body