Yasha
Most popular questions and responses by Yasha
chemistry
If all the energy obtained from burning 1.23 pounds of propane (fuel value is 11.09 kcal/g) is used to heat 125.0 kg of water at an initial temperature of 21.8 °C, what is the final temperature? Hint: The heat, q, released by burning propane is absorbed
asked on March 25, 2012 
Chemistry
At constant pressure, which of these systems do work on the surroundings? Check all that apply. A(s) + 2B(g) > C(g) 2A(g) + B(g) > 4C(g) A(g) + 2B(g) > 2C(g) A(s) + B(s) > C(g)
asked on March 23, 2012 
calculus
Interference Two identical tuning forks are struck, one a fraction of a second after the other. The sounds produced are modeled by f1(t) = C sin(wt) and f2(t) = C sin(wt + Alpha). The two sound waves interfere to produce a single sound modeled by the sum
asked on April 15, 2012 
PLZ ANSWER THIS!!!! QUICK
Suppose the lengths of the four side of a quadrilateral are represented by the expressions 3a, a+2, 2a1, and 3a+6. write the sum of the lenghts (the perimeter), and then simplify.
asked on October 16, 2008 
HELP WITH ALGEBRA!!!!!!!
Suppose the lengths of the four side of a quadrilateral are represented by the expressions 3a, a+2, 2a1, and 3a+6. write the sum of the lenghts (the perimeter), and then simplify.
asked on October 16, 2008 
algebra
Suppose the lengths of the four side of a quadrilateral are represented by the expressions 3a, a+2, 2a1, and 3a+6. write the sum of the lenghts (the perimeter), and then simplify.
asked on October 16, 2008 
algebra
use factoring and the zeroproduct property to solve 4a^211a+6=0 9r^230r+21=4
asked on December 19, 2012 
MATH
how do u find the area of a quadrilateral?
asked on October 16, 2008

Chemistry
Thank you so very much~!
posted on March 23, 2012 
probability
3 out of 11
posted on October 16, 2008 
Biology
fungi
posted on October 16, 2008 
Algebra 1
subtract 8 from 3 then add two to that answerthen divide by 3. then u will get x
posted on October 16, 2008 
english
No
posted on October 16, 2008