Consider the equation ut + bux = au; u(x; 0) = u0(x): (a) write down the exact solution to this problem. (b) show that the method un+1 i = bt x (un i un ) + (1 + ta)un i is of rst order accuracy for this equation. (c) show that the method in part (b) is stable under a suitable condition, and give this stability condition

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.

An object's buoyant force and weight mean the same thing. a. trueb. false

1. a camcorder has a power rating of 19 watts. if the output voltage from its battery is 7 volts, what current does it use?answer units 2. a 1.5m wire carries a 6 a current when a potential difference of 57 v is applied. what is the resistance of the wire? yourunits 3. a clothes dryer uses about 2 amps of current from a 240 volt line. how much power does it use? yourunits 4.