As seen from earth, the sun has an apparent magnitude of about β26.7. what is the apparent magnitude of the sun as seen from saturn, about 10 au away? (remember that one au is the distance from earth to the sun and that the brightness decreases as the inverse square of the distance.) would the sun still be the brightest star in the sky?
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Physics, 21.06.2019 22:50
As a car drives with its tires rolling freely without any slippage, the type of friction acting between the tires and the road is 100) a) static friction. b) kinetic friction. c) a combination of static and kinetic friction. d) neither static nor kinetic friction, but some other type of friction. e) it is impossible to tell what type of friction acts in this situation.
Answers: 1
Physics, 22.06.2019 05:30
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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Physics, 22.06.2019 05:50
Acylinder with a movable piston contains 11.7 moles of a monatomic ideal gas at a pressure of 1.32Γ10^5 pa. the gas is initially at a temperature of 300 k. an electric heater adds 43200 j of energy into the gas while the piston moves in such a way that the pressure remains constant. cp=20.79 j k^β1 mol^β1 for a monatomic ideal gas, and that the number of gas molecules is equal to avogadro's number (6.022Γ10^23) times the number of moles of the gas. (a) what is the temperature of the gas after the energy is added? (b) what is the change in volume of the gas? (c) how much work is done by the gas during this process?
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Physics, 22.06.2019 19:30
Ashot putter releases the shot some distance above the level ground with a velocity of 12.0 m/s, 51.0 βabove the horizontal. the shot hits the ground 2.08 s later. you can ignore air resistance. how far did she throw the shot?
Answers: 2
As seen from earth, the sun has an apparent magnitude of about β26.7. what is the apparent magnitude...
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