There were 5 friends dropping rocks aff a bridge into a river. The initial velocity of the rocks is 0m/s, because they are being dropped and therefore begin at rest. Gravity accelerates the 7Kg rocks downward at a rate of 9 m/s. If it takes 8 seconds for the rocks to fall, how high was the cliff?

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.

Which feature of a heating curve indicates a change ofn state

Which of the following is not a part of the respiratory system? a. pharynx b. trachea c. pancreas d. larynx hurrim timed