In order to see a distant star during a total eclipse of the Sun you must look for it in a direction that is farther from the Sun than the direction you would normally look for the star
Indicate whether the statement is true or false
TRUE
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The diagram above represents energy levels in a hydrogen atom. Each level is labeled with its energy (above the ground state of Level 1) in units of electron/volts (eV). The labeled transitions represent an electron moving between energy levels. Which transition represents an electron that is breaking free of the atom?
A) A B) B C) C D) D E) E
Suppose you want to know the chemical composition of a distant star. Which piece of information is most useful to you?
A) The peak energy of the star's thermal radiation. B) The Doppler shift of the star's spectrum. C) The wavelengths of spectral lines in the star's spectrum. D) Whether the star's spectrum has more emission lines or more absorption lines.
Einstein's theory of relativity is based in part on which one of the following postulates?
a. Mass and energy are equivalent. b. Space and time are absolutes. c. Energy is conserved only in elastic collisions. d. Speed of light in a vacuum is same for all observers regardless of source velocity.
Why did the atmosphere of Venus develop differently from that of Earth?
What will be an ideal response?