A 5g sample of pure gold has a density of 19.3g/mL. Your friend purchased a gold ring that was made of 25g of pure gold. What is the density of the gold ring? Density =
Mass/Volume
A.5g/mL
B.19.3g/mL
C. 25g/mL
D.16.92g/mL

The four giant gas points that are made primarily of lightweight elements are

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

John throws .4 kg ball with velocity of 18 m/s. hits .2 kg bottle and bottle flies 25 m/s. how fast is ball traveling after hitting the bottle?