What is the temperature of a system in thermal equilibrium with another system made up of ice and water at one atmosphere of pressure?
a. 0°F
b. 273 K
c. 0 K
d. 100°C
b
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Why do we expect WIMPs to be distributed throughout galactic halos, rather than settled into a disk?
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What are the quarks really called?
A.) Sleepy, Dopey, Grumpy, Sneezy, Bashful, and Doc. B.) Electron, proton, photon, positron, meson, and muon. C.) Charm, strange, anger, hope, peace, and love. D.) Up, down, top , bottom, strange, and charm. E.) Gluon, W+ boson, W- boson, Z boson, graviton, and photon.
What is the valence shell?
A) It is the outermost shell of electrons in an atom. B) It is the shell of electrons in an atom that is the least reactive. C) It is the last partially filled orbital in an atom. D) It is the shell of electrons in element V (atomic no. = 23). E) It is the same as the orbital configuration.