Determining whether clean groundwater has become dirty and what caused any contamination is a complex pursuit. stephen osborn and three colleagues from duke university set out to learn whether drinking water was really being contaminated by nearby hydrofracking. osborn’s team focused on sites in northeastern pennsylvania and adjacent new york, where the marcellus shale formation overlies the utica shale formation. the sites they tested are indicated in the map below.

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

Connie has $660,000 she wants to save. if the fdic insurance limit per depositor, per bank, is $250,000, which of these way is distributing her money between three banks will guarantee that all of her money is insured ?

Write down two additional questions about earth's magnetic field that will make your presentation more informative.