A 8.7 hour trip is made at an average speed of 73.0 km/hr. If the first third of the trip (chronologically) was driven at 96.5 km/hr, what was the average speed for the rest of the journey?
Select one:
O a. 85 km/hr
O b. 51 km/hr
O c. 61 km/hr
O d. 67 km/hr

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

You can decrease the resistance of a length of wire by

Which of the following is not a physical property of mattera. melting pointb.heat of combustionc. viscosityd. boiling point