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Physics, 27.10.2019 02:43, fardinhaque6113
Cooper metal has a specific heat of 390 j/kg c. calculate the amount of heat required to raise the temperature of 22.8 g of copper to 875 c
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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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Physics, 23.06.2019 20:30, myahprovenzano
Cobwebs are popular decorations at halloween time, but an experiment in which spiders were given psychoactive substances showed that it really affects their web spinning skills! the web below was spun under the influence of what?
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Cooper metal has a specific heat of 390 j/kg c. calculate the amount of heat required to raise the t...
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