A star has a mass of 18 1030 kg and radiates energy at the
A star has a mass of 1.8 1030 kg and radiates energy at the rate of4.0 1026 W. What fraction of its original mass has the star lost inthis way since it began to burn hydrogen, about 4.2 109 y ago?
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a very large tank contains the gas ethane the pressure of ethaneis 214 x 104 pa thereare 428 moles of this gas in
1 what are the basic assumptions that inform the essaya what are the major organizing ideasb what are the subordinate
given a stationary phase of silica gel and nonpolar and polar analyte which would elute first also if given a polar
assume that the protons in a hot ball of protons each have akinetic energy equal to kt where k is the boltzmann
a star has a mass of 18 1030 kg and radiates energy at the rate of40 1026 w what fraction of its original mass has the
discuss how selected female characters in mark twains adventures of huckleberry finn kate chopins story
to fill a childs backyard inflatable wading pool you use a gardenhose with a diameter of 29 cm water flows from this
what is the ph of a solution that contains 015 m hc2h3o2 and 028 m c2h3o2- use kb 56 x 10-10 for c2h3o2- ph
a tube is closed at one end and open to 16 o c air atthe other end the tube vibrates in the fifth harmonic at
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