A cylinder contains helium gas with a volume of 2. 60 l at 20 c and 768 mm hg. If the balloon ascends to an altitude where the helium pressure is 614 mm hg, what is the volume of gas? (assume the temperature has not changed).

Afour-year college’s application process takes into account all of the following except

17 a tourist was planning a trip by car for travelling at some constant speed for 2.5 hours. however, he found that if he increases the speed by 20 km/h he can cover the same distance in 30 minutes less time than it was planned. what was the planned speed of the tourist, in km/h?

What are the two main ideas of this passage? museum experts feel that museums must change to attract visitors. museum experts care more about the number of visitors than about history. museums that display artworks and exhibits do not make families welcome. museums like colonial williamsburg make learning about the past fun. museums in the united states are different than in other countries.