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the density of sirius b is 2times106nbspgcm3nbspand its mass is 195times1030nbspkg what is the radius of the white
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according to the us mint pennies are made of a mixture of copper density 896 gcm3 and zinc density 714 gcm3what should
massive star ages if the most massive star is around 100 solar masses how old is this star expected to live if the star
discuss the type of efforts made to date to find extra-terrestrial intelligence is there a possibility we might still
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what are challenges of observing and making images of planets around
please explain whyfor each of the following decide what type of observation imaging spectroscopy timing you would need
1 jupiter has a mass of 19x1027kg and an average radius of 70x104km mars has a mass of 64x1023kg and an average radius
what exactly does galileo observe with the telescope as described in the starry messenger why are these observations so
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1 in this problem you are going to compare the angular resolution obtained by keck with that obtained with the hubble
when a planet is in the farthest part of the ellipse it is moving slower does this mean that the gravity is weaker
try calculating the force of gravity weight you would feel standing on the surface of a planet with a radius twice that
about the jupiters winds at different heights which one of the following statements is not correct a the galileo probe
how elliptical inbspif the semimajor axisnbspanbspis twice the semiminor axisnbspbnbspof an elliptical galaxy what is
solar wind if the velocity of the solar wind is about 400 kmfrasls and the visible tail of a comet is 1 times 108 km
sketch and label the structure of the sun including the different parts of its interior surface and
venus iithe brightest planet in our sky is venus which is sometimes as bright as apparent magnitude -4 when venus is at
venus ithe brightest planet in our sky is venus which is sometimes as bright as apparent magnitude -4 when venus is at
suppose the entire solar nebula had cooled to 50 k before the solar wind cleared it away how would the composition and
how can we possibly know things about the sun when its so hot that we cant send a probe into