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what would happen if there were significant accumulations of antimatter anywhere in the universe why do such antimatter
1 what is the hubble classification themenbspwhich category includes the biggest galaxiesnbspinto which category do the
in our solar system a planet near the sun center moves faster slower than a planet in the outer part of the solar
why does microwave radiation in space give compelling evidence of a beginning to the
how does mass affect the expansion of the universe slow speed up or does not affect
the luminosity of the sun is 386 x 1033nbspergsec calculate how long the sun must shine in order to release an amount
why would a position on a merry-go-round move at different velocity-verses-distance rates than a position in a solar
many astronomers have spent their entire career attempting to definitively answer the question are we alone to date we
1 the suns radius is about 7x105nbspkm a how long would it take a photon produced at the center of the core to exit
why are some of the zodiac constellations above the celestial equator and some belowthe zodiac constellations are
a quasar changes brightness in one week so it must be smaller than the distance light travels in a week how big is this
in a typical solar oscillation the suns surface moves up or down at a maximum speed of 01 ms an astronomer sets out to
the concentration or abundance of ethyl alcohol in a typical molecular cloud is about 1 molecule per 108nbspcubic
in an x-ray burster the surface of a neutron star 10 km in radius is heated to a temperature of 3 x 107k a determine
an x-ray binary contains a 2m star and a 15m neutron star if their orbital period is 1 day what is the separatin
calculate the average speed of a hydrogen atom mass 167 x 10-27 kg a in the atmosphere of the present-day sun with the
calculate the escape speed from a the surface of the present-day sun and b from the surface of the sun when it becomes
please help me answer this questionstar a orbits its companion star b and it takes 330 years to complete one orbit the
in this thread i would like you to comment on the nature of light and how operation of telescopes light has a duality
suppose you calculate the mass-to-light ratio of a galaxy to be 185 would you expect to find many young stars in the
need help answering this thank youpick one of the following items cold frozen ice cube hot molten metal very hot dense
pick one of the questions below to answer be very careful not to pick the same question that any of the other students
the differences in the geology of the earth and the moonnbspthe theory explaining the formation of the moonnbspthe role
given that the density of a white dwarf is 109 kgm3 and that the density of a neutron star is 1017 kgm3 determine the
in massive stars elements heavier than hydrogen helium and carbon can be made why does it take higher and higher