Physics, 18.06.2021 09:30 angeldawnfick
How are the stars proof that the universe is expanding?
Answer from: babygirl1780
When looking at the radiation emitted by distant stars or galaxies, scientists see emission spectra shifted towards the red end of the electromagnetic spectrum. The observed wavelengths are longer than expected. And something like causes the wavelength to stretch.
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Answer from: gabi83
When looking at the radiation emitted by distant stars or galaxies, scientists see emission spectra 'shifted' towards the red end of the electromagnetic spectrum—the observed wavelengths are longer than expected. Something causes the wavelength of the radiation to 'stretch'.
Explanation:
Answer from: Quest
you have to draw the persons position over there
Answer from: Quest
the answer is false
explanation:
Physics, 22.06.2019 03:40, srtero
Aprojectile is launched from ground level with an initial velocity of v 0 feet per second. neglecting air resistance, its height in feet t seconds after launch is given by s equals negative 16 t squared plus v 0 t. find the time(s) that the projectile will (a) reach a height of 192 ft and (b) return to the ground when v 0equals112 feet per second. (a) find the time(s) that the projectile will reach a height of 192 ft when v 0equals112 feet per second. select the correct choice below and, if necessary, fill in the answer box to complete your choice.
Answers: 1
Physics, 22.06.2019 08:30, katiemh8302
A17,250 kg rocket is pushed with a thrust of 6,450,284 n. what is the acceleration of the rocket?
Answers: 1
Physics, 22.06.2019 14:10, astarkey14
Click the game tab at the bottom of the simulation and select level 1. (there is no seesaw balance for this part of the activity.) balance the first equation, and click check to see if you got it right. if you can’t balance it in the first try, you can try again. work through the five equations for level 1. click continue to go on to level 2, and later level 3. each level is more difficult than the one before. keep trying until all the equations are balanced. in one or two sentences, describe how you did in the balancing game. in a few more sentences, explain one strategy you learned for balancing more complex equations.
Answers: 2
Physics, 22.06.2019 19:30, alexmarche8637
Contains chemical energy. a. heat b. light c. natural gas
Answers: 2
How are the stars proof that the universe is expanding?...
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