According to the law of conservation of energy, which statement must be true?
OA. A system cannot take in additional matter.
O B. Energy that is transferred cannot be transformed into a different
OC. The total energy of a system can increase only if energy enters the
type of energy.
system.
OD. The total energy in a system can only decrease over time.
SUBMIT

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.

There are two routes similar in terrain; however, one route has an incline of approximately 28 degrees, and you must decide on which route to take. what is the maximum road grade that your fully loaded ecv can climb?

Which two particles are found in the center of an atom