Physics

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If a light-emitting object is moving away from you, you observe its wavelengths to be ________ its ... Started by azncindy619	1 Replies 74 Views	Jul 27, 2018 by vickyvicksss
Two white dwarf stars are the same size, but one has a surface temperature twice as hot as the ... Started by londonang	1 Replies 35 Views	Jul 27, 2018 by nguyenhoanhat
The wavelength of the hydrogen line from level 1 to level 2 in a hot star is ____________ the ... Started by lracut11	1 Replies 99 Views	Jul 27, 2018 by nathang24
Which one of the hydrogen atoms below is EMITTING light? The electron jumps from the a. second ... Started by Kikoku	3 Replies 61 Views	Jul 27, 2018 by hramirez205
Which one of the hydrogen atoms below is EMITTING light at a wavelength in the Balmer series? a. ... Started by chandani	1 Replies 65 Views	Jul 27, 2018 by Sarahjh
When an electron transitions from a higher orbital level to a lower orbital level, a photon is ... Started by go.lag	1 Replies 68 Views	Jul 27, 2018 by pocatato
Which property does color best represent? a. velocity b. thermal energy c. temperature d. ... Started by craiczarry	1 Replies 46 Views	Jul 27, 2018 by chloejackso
Where are neutrons found in the hydrogen atom? a. nucleus b. cloud surrounding the nucleus c. ... Started by FButt	3 Replies 239 Views	Jul 27, 2018 by sierrahalpin
Since an electron is so less massive than a proton, what is the approximate mass and charge of a ... Started by Mr3Hunna	1 Replies 63 Views	Jul 27, 2018 by cassie_ragen
If the change in wavelength is less than zero, then the radial velocity tells you that the star is ... Started by sammy	1 Replies 25 Views	Jul 27, 2018 by brittiany.barnes
If the radial velocity of a star is positive, the star is moving _________________ you. a. ... Started by j.rubin	1 Replies 30 Views	Jul 27, 2018 by trampas
The higher the surface temperature of the star, the _______________ the wavelength of maximum ... Started by acc299	3 Replies 54 Views	Jul 27, 2018 by alexisweber49
What is a blackbody? a. a perfect emitter and a perfect absorber of light b. a perfectly opaque ... Started by Yi-Chen	1 Replies 43 Views	Jul 27, 2018 by Tonny
What holds the electron to the nucleus of an atom? a. Coulomb force b. binding energy c. thermal ... Started by magmichele12	1 Replies 78 Views	Jul 27, 2018 by ecox1012
The ____________________ of a star can be determined from its color. Fill in the blank(s) with ... Started by 809779	1 Replies 81 Views	Jul 27, 2018 by dawsa925
The process of removing an electron from a stable nucleus is known as ____________________. Fill ... Started by genevieve1028	3 Replies 71 Views	Jul 27, 2018 by Mollythedog
____________________ is a measure of the amount of energy due to the motion of the particles in a ... Started by maegan_martin	1 Replies 122 Views	Jul 27, 2018 by ecox1012
If one star has a temperature of 4000 K and another star has a temperature of 40,000 K, how much ... Started by K@	1 Replies 35 Views	Jul 27, 2018 by hramirez205
The peak wavelength in the continuous emission spectrum of a body is inversely proportional to its ... Started by stephzh	1 Replies 48 Views	Jul 27, 2018 by Jody Vaughn
When the electrons in an atom are in their lowest possible energy levels, the atom is said to be in ... Started by maegan_martin	3 Replies 224 Views	Jul 27, 2018 by Jadwiga9
A ____________ will be obtained from an observed star's spectrum that has been shifted towards ... Started by sam.t96	1 Replies 56 Views	Jul 27, 2018 by Harbringer
If a star is moving ____________ from us, then its spectra will be shifted toward ________ ... Started by big1devin	1 Replies 25 Views	Jul 27, 2018 by mcabuhat
______________ will give you information on the surface temperature of the star after you obtain the ... Started by swpotter12	1 Replies 45 Views	Jul 27, 2018 by allisonblackmore
The flow of energy is always from hot to cold and is called ___________. Fill in the blank(s) ... Started by armygirl	3 Replies 40 Views	Jul 27, 2018 by Tabitha_2016
Electrons in an atom are attracted to the nucleus by the _______________ force. Fill in the ... Started by sam.t96	1 Replies 33 Views	Jul 27, 2018 by Sarahjh