Biology

Biology, 14.11.2019 22:31, laniflower6

What is the relationship between o galaxy and a nebula?
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Physics, 23.06.2019 18:00, kyaslaven9791

If the sun were to become a black hole, what would happen to earth? it is impossible to know the results. it would be sucked in very rapidly. it would continue in the same orbit. it would be sucked in very slowly. 3. which type of radiation us map the galaxy? visible light infrared 21 cm radio waves ultraviolet 4. henrietta leavitt found that the brighter appearing cepheids always had longer periods of light variation. this is an expression of what? period-luminosity relation luminosity function hertzsprung-russell diagram mass-luminosity relation 5. what is the surface or boundary of a black hole called? quasar active galaxy event horizon seyfert point 6. edwin hubble's discovery of a cepheid variable in the andromeda nebula led him to conclude that the nebula was what? a distant galaxy composed of hydrogen a supernova remnant the birthplace of stars 7. earth is near the center of the milky way galaxy. true false 8. how long does it take the sun to revolve around the center of the galaxy? two hundred thousand years two hundred million years two hundred years two hundred billion years

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Chemistry, 25.06.2019 00:00, lokiliddel

Points need answer mike wrote the characteristics of two types of galaxies as shown below: type a: forms a perfect sphere or a smooth flattened oval type b: has a large flattened core which statement is correct? type a is an elliptical galaxy and type b is a lens galaxy. type a is a lens galaxy and type b is an elliptical galaxy. type a is a spiral galaxy and type b is an elliptical galaxy. type a is an elliptical galaxy and type b is a spiral galaxy.

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Physics, 29.07.2019 14:20, winterblanco

5physics questions for 25 points don't answer if you don't know it. i'll mark the best response as 1. a is an object in space with such intense gravity that no light can escape? a- red shift b- galaxy c- black hole d- nebula 2. a galaxy is a group of billions of stars, star systems, star clusters, dust and gas bound together by a- light b- gravity c- friction d- water 3. which of the following is not a type (shape) of galaxy? a- spiral b- triangular c- elliptical d- irregular 4. what is the shape of our milky way galaxy? a- spiral b- triangular c- elliptical d- irregular 5. there are billions of galaxies in the universe. how are they classified? a- by their colors and luminosity b- by their size and shape c- by their size and color d- by their size and brightness

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Biology, 20.09.2019 05:40, lafayette7727

What the heck do these terms mean i forgot my txbk but i have the rubric me now pl 50- 98 ! nebula protostar white dwarf supernova neutron stars pulsar black whole spiral galaxy barred-spiral galaxy irregular galaxy quasar the big bang theory dark matter dark energy in

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What is the relationship between o galaxy and a nebula?
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10 points...

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