An ice skater has a moment of inertia of 12 kg-m2 when her arms are outstretched. at this time she is spinning at 2.0 radians/s. if she pulls in her arms and decreases her moment of inertia to 6.0 kg-m2and spins at 4.0 radians/s, how much work does she do to pull her arms in?
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Agas expands from an initial volume of 0.040 m^3 and an initial pressure of 210 kpa to a final volume of 0.065 m^3 while its temperature is kept constant. how much work is done by the system?
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On a day when the barometer reads 75.23 cm, a reaction vessel holds 250 ml of ideal gas at 20 celsius. an oil manometer ( ρ= 810 kg/m^3) reads the pressure in the vessel to be 41 cm of oil and below atmospheric pressure. what volume will the gas occupy under s.t.p.?
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An ice skater has a moment of inertia of 12 kg-m2 when her arms are outstretched. at this time she i...
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