Question 5.A 5.0-kg bag of groceries is dropped from a height of 1.0 m. What is the final speed of the bag just as it touches the ground? Ignore air
resistance for this problem.
A. 1.1 m/s
B. 4.4 m/s
C. 5.5 m/s
D. 22 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.

Explain the consequences of this addiction to the brain tissue

1kg of water needs to recieve 4200j of energy to go from 90 degrees to 91 degrees. what is the specific heat capacity of water? what are the units?