Which of the following are three conditions that a scientific question must meet?

a. testable, supportable, repeatable.

b. supportable, repeatable, reliable

c. repeatable, reliable, important

d. testable, supportable, important

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.

A2.00-m long piano wire with a mass per unit length of 12.0 g/m is under a tension of 8.00 kn. what is the frequency of the fundamental mode of vibration of this wire?

The diagram shows four locations in the electric field of a positive point charge m. at which location is the electric potential the greatest.