The hydrogen atoms in a star are also moving at high velocity because of the random motions caused by their high temperature. as a result, each atom is doppler shifted a little bit differently, leading to a finite width of each spectral line, such as the 656.46-nm line we were just discussing. for a star like our sun, this leads to a finite width of the spectral lines of roughly δλ=0.04nm. if our instruments can only resolve to this accuracy, what is the lowest speed v, greater than 0, that we can measure a star to be moving?
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Physics, 22.06.2019 00:30
Asap time is ! best answer gets compose at least one well-developed paragraph on the following: define the term concurrent powers, and give an example of a concurrent power of government.
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Physics, 22.06.2019 01:00
15. give an example for some particles or waves that are moving faster than light in everyday life 16. what is a laser? 17. what is an oscilloscope? 18. what does it means practically that nothing is faster than light in vacuum? 19. what is vacuum?
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Physics, 22.06.2019 07:20
If 2 moles of co_2 at 2l and 500k are expanded reversibly to 20l, more work can be obtained from an adiabatic process than from an isothermal process. is the above statement true or false?
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Physics, 22.06.2019 07:30
Carbon-14 is a radioactive element that undergoes beta decay. which force is responsible for allowing carbon-14 to become stable? electromagnetic gravitational weak nuclear strong nuclear
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The hydrogen atoms in a star are also moving at high velocity because of the random motions caused b...
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