The proper length of one spaceship is 2.8 times that of, Ask an Expert

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Q1. The proper length of one spaceship is 2.8 times that of another. The two spaceships are travelling in the same direction and, while both are passing overhead, an Earth observer measures the two spaceships to be the same length.

If the slower spaceship is moving with a speed of 0.28 c, determine the speed of the faster spaceship.

Q2. 28 diameter cylinders set vertically and sealed at the top by the frictionless piston of mass 15. The piston is initially a height 90 above the bottom of the cylinder when the gas temperature is 314. The air above the piston is at 1.00 pressure. What is the gas pressure inside cylinder?

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Category:- Physics
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