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One kilomole of an ideal gas undergoes a free expansion, tripling it's volume. What is the change of entropy of?
a) the gas
b) the universe
Illustrate what minimum speed will allow the ball to clear the roof?at what angle should the ball be tossed. (in picture at roof starts at 3m and the angle of the roof there is 45degrees
estimate the speed of the car just before braking. how much time passes before the brick lands on the ground..
A gas expands from I to F. The energy added to the gas by heat is 423 J when the gas goes from I to F along the diagonal path.
Stephan paces back and forth in the lecture room. He starts at x=0 (measured in dm frm the edge of the table), What is the distance travled and what is the displacement
If the magnetic field strength is 0.845 T, what is magnitude and direction of the magnetic force on the wire between the poles
Suppose the barrel has a length of 0.511 m and an opening whose radius is 2.55 x 10-3 m. A bullet (mass = 2.6 x 10-3 kg) has a speed of 433 m/s after passing through this barrel. Ignore friction and determine the average pressure of the expanding ..
What is the maximum displacement of the bridge deck?
A 13000 kg railroad car travels alone on a level frictionless track with a constant speed of 17 m/s. A 6500 kg load, originally at rest, is dropped onto the car. What will be the car's new speed.
Three particles, each with a mass of 0.25 kg, are located at (- 4.0 m, 0), (2.0 m, 0), and (0, 3.0 m) and are acted on by forces, and respectively.
An ac generator with a frequency of 1.54kHz and an rms voltage of 22.2V is connected in series with a 1.90k, What is the power factor for this circuit
Evaluate to what temperature must both be raised so that the brass ring will slide onto the rod? If one can cools the assembled system back to 20 celcius, what is teh stress in the brass ring?
A particle moves horizontally in uniform circular motion, over a horizontal xy plane, What are the coordinates of the center of the circular path
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