Two force vectors are oriented such that the angle between their directions is 38 degrees and they have the same magnitude. if their magnitudes are 1.84 newtons, then what is the magnitude of their sum?

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.

Aria drove to the store, did some shopping, and then came home. during maria's trip, when was her displacement equal to zero?

Why is the energy that results from a roller coaster's position at the top of a hill referred to as potential energy?