5 A metal ball of mass 0.30kg and weight 3.0N is held so that it is below the surface of oil. It experiences an upwards force of 0.30N force When the ball is released, what is its initial acceleration? A 1.0 m/s B 9.0 m/s C 10 m/s D 11 m/s

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.

Calculate the heat capacity per object when the total energy is 4 quanta. (think of this in terms of increasing from 3.5 quanta of energy in the system to 4.5 quanta of energy in the system, if that were possible.) c4 = __ j/k/object

Zeros that follow non-zeros numbers and are also to the right of a decimal point are significant