Thursday

October 30, 2014

October 30, 2014

Total # Posts: 23

**Chemistry- colligative properties**

Which of the following aqueous solution of equal molality has the lowest freezing point? a. H2SO3 b. NaCl c. NaOH d. Ca(NO3)2 How do you answer this without looking at their i values from textbooks? I know that delta(Fpt) = m * K,f * i and that i is approximately equal to the ...
*September 28, 2014*

**Chemistry**

A Power plant rated at 800 MegaWatts generates steam at 585 K and discards heat to a river at 295 K. If thermal efficiency of plant is 70% of maximum value, how much heat is discarded to river at rated power? Please help with steps on how to solve this one.
*September 28, 2014*

**English**

What's the difference between the phrase: "It is not about you", and "It has nothing to do with you" Or do they necessarily mean the same?
*September 27, 2014*

**chemistry**

A sample of a gas in a ridge container at 30.0 c has a volume of 2.00L. If its temp increased to 40.0 C What will the new volume be?
*February 22, 2012*

**science-physics **

a boat travels in still water at 2m/s. It is rowed across a river that flows at 1m/s. Determine the resultant velocity of the boat
*February 14, 2012*

**Physics**

I am also in the program, but I was wondering did you guys use the program to help you at all?
*December 28, 2011*

**science**

How many protons, neutrons, and electrons does a neutral atom of calcium have?
*December 15, 2011*

**science**

If a mixture is made of 340g of isopropyl alcohol and 150g of water, what is the percent compowition of each?
*December 14, 2011*

**math**

what is the product of 5 plus 3
*November 16, 2011*

**math**

Record 7 digits (0-9) in ascending order whose mean, median, and mode are 1 and which have a standard deviation larger than 0. Thanks
*November 16, 2011*

**Math**

Record 7 digits (0-9) in ascending order who has a mean of 3 and a standard deviation of 0. Thanks
*November 16, 2011*

**physics**

A nail is dropped from a height of 400m. How long does it take to land?
*September 26, 2011*

**Algebra**

yr 1> $265,000 yr 2> $280,900 yr 3> $297,754 yr 4> $315,619 yr 5> $334,556 yr 6> $354,630 yr 7> $375,908 yr 8> $398,462 yr 9> $422,370 yr 10> total %447,711.92 or $447,712
*June 17, 2011*

**Algebra**

how many weeks are in the average month? how many weeks on average are in 5 months? in this equation, 50= initial amount 149= total cost of dvd player 20= average # of weeks in 5 months x= how much he needs to save per week
*June 16, 2011*

**calculus**

find the equation of the tangent line to y=4^((x^2)-6x+3) at x=4
*June 16, 2011*

**algebra**

test 1=74 test 2=74 test 3=74 test 4=74 test 5=64 average of all 5 is 72. average of first 4 is 74. just have to find a # divisible by 5 that equals 72 when divided by 5 Then find a # divisible by 4 that equals 74 when divided by 4 take the difference, theres your answer.
*June 16, 2011*

**pre-algebra**

multiply 0.729 by 125 you get 91.125 Always get your percent in terms of one, which makes it 0.729, then multiply by the number you want to find 72.9% of.
*June 16, 2011*

**11th grade physics**

a car starts from rest and accelerates for 5.2 seconds with an acceleration of 1.1 miles/s2 how far does it travel be answers are in units of miles
*October 22, 2010*

**french**

ironiquement
*September 2, 2010*

**french**

veritement
*September 2, 2010*

**math**

Find a rule. Write the rule as an equation. Input X 12, 47, 9 Output Y 32, 67, 29 Rule:____________ Equation:_______________
*May 3, 2010*

**Chemistry **

suppose a graduated cylinder wasn't correctly calibrated, how would this effect the results of a measurement? How would it effect the results of a calculation using this measurement?
*September 15, 2009*

**Math**

hi, I am trying to find the domain and range, of this equation, in interval notation. y = 4/(x+3) , can you please help?
*September 3, 2008*

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