Total # Posts: 34
Chemistry (Gas question)
The mean kinetic energy of the molecules in a sample of H20 gas is 12x10^-19 J, calculate the mean velocity of a molecule and the temperature of the gas. Please help need to know for exam tomorrow.
January 18, 2013
physics help me bob!
A rock is thrown from the roof of a building with a velocity v0 at an angle α0. The height of the building is h. (i)Calculate the horizontal distance traveled by the projectile before it strikes the ground. (ii)Show that the speed of the rock just before it strikes the ...
December 2, 2012
Evolutionary theories often emphasize that humans have adapted to their physical environment. One such theory hypothesizes that people should spontaneously follow a 24-hour cycle of sleeping and wakingeven if they are not exposed to the usual pattern of sunlight. To test...
November 9, 2011
I really appreciate all the help this site provides. I agree check the figures that are given since the person posting the question may type the wrong number such as above. Thank you very much-it helps me think though the answers. Not sure I would even know where to start ...
July 15, 2009
government and nation
Why didnt presidential power increase after the nations first three wars (1812, Mexican, Spanish-American)? Were the wars different or was the nation different?
November 22, 2008
the sum of two nonnegative numbers is 20. find the number if a. the sum of their squares is as large as possible; as small as possible b. oen number plus the square root of th eother is as large as possible; as samll as possible
November 18, 2008
12th grade calculus
your operate a tour service that offers the following rate: $200 per person if 50 people (the minimum number to book the tour) go on the tour for each additional person, up to a maximum of 80 people total, the rate per person is reduced by $2 it cost $6000 (a fixed cost) plus...
November 18, 2008
does anyone know any website that I can find about Government law to answer the following question? [c] Comrade Nikolai, a communist, wishes to hold a Saturday rally in LeBard Stadium at Orange Coast College, but several Costa Mesa citizens object. [d] Ethan Moses, a black ...
November 9, 2008
a trucker handed in a ticket at the toll booth showing that in 2hours she had covered 159 mi on a toll road with speed limit 65mph. the trucker was cited for speeding. why?
November 6, 2008
suppose that in any given year, the population of a certain endangered species is reduce by 25%. if the population is now 7500, in how many years will the population be 4000?
October 31, 2008
What is the difference between a legislative bond measure, a legislative constitutional amendment, and an initiative constitutional amendment? How many of each are on the ballot?
October 27, 2008
12th grade government/economics
Amendments must be ratified by 3/4 of the states. Article IV has given Congress the option of requiring ratification by state legislatures or by special conventions assembled in the states.
August 24, 2008