You walk for 6.44 km with at a constant velocity of 2.54 m/s due west, turn around, and then walk with an average velocity of 0.480 m/s due east. from your starting point to your destination, your overall average velocity is 1.35 m/s due west. during the trip, how far east did you walk?

According to the law of conservation of mass, in a chemical reaction the total starting mass of all the reactants equal the total final mass of all the products. true or false?

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.

What sort of waves exhibit the doppler effect?