What happens to the total mass of a substance undergoing a physical change?
only have eight...
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Physics, 21.06.2019 16:10, lberman2005p77lfi
In 1995 a research group led by eric cornell and carl wiemann at the university of colorado successfully cooled rubidium atoms to the 20-200 nk temperature range. assuming (incorrectly) that the rubidium atoms behave liké particles of a classical ideal gas, calculate the rms speed of a rubidium atom at a temperature of 112.0 nk. in the experiments one particular isotope of rubidium was used, rubidium-87. the molar mass of this isotope is 86.91 q/mol. tries 0/20 submit answer
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Physics, 22.06.2019 04:00, joshuabm42407
What is the final velocity of the initial velocity of 25 and -50?
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Physics, 22.06.2019 06:30, angelinaranee15
Work = force × a. work b. energy c. distance d. momentum
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Physics, 22.06.2019 08:30, mikemurray115
How is sound energy produced a. vibrating objects b. objects being heated c. temperature differences d. stationary objects
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