First Law of Thermodynamics: An ideal gas undergoes an adiabatic process while doing 25 J of work. What is the change in the internal (thermal) energy of the gas?
A. 0 J
B. 25 J
C. -25 J
D. 50 J
E. -50 J
Answer: C
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One of the curators at the art museum is tilting a large cylinder backward. At what angle ? will the cylinder of height h and radius r be in unstable equilibrium?
A.
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.Stars much more luminous than the Sun have
A) narrower habitable zones, decreasing the odds of finding habitable planets and lifetimes too short for life to appear B) wider habitable zones, increasing the odds of finding habitable planets but lifetimes too short for life to appear C) narrower habitable zones, decreasing the odds of finding habitable planets but much longer lifetimes allowing life to appear and evolve D) wider habitable zones, increasing the odds of finding habitable planets and much longer lifetimes allowing life to appear and evolve
The mutual attraction of gas molecules is an important aspect of:
A) Avogadro's Hypothesis B) Dalton's Law C) Graham's Law D) van der Waals Theory E) ideal gas law
What is the inductance of a solenoid 300 cm long, with 10.0 turns of wire and a cross-sectional area of 1.00 × 10-4 m2?
A) 4.19 nH B) 4.19 pH C) 4.19 ?H D) 4.19 mH E) 4.19 fH