# Posts by quentin

Total # Posts: 27

**Calculus**

Whoops, Assume gravity is 9.8, wrong name

*December 31, 2015*

**Calculus**

A cylindrical water tank has radius r=1 meter and height 10 meters. Suppose the tank is lying on its side and is filled halfway with water. How much work does it take to pump all the water out the top of the tank? The height is now 2 meters. Thanks, I'm not really sure how...

*December 31, 2015*

**L.A**

didnt think so so you thought THE REAL ANSWER TO THE QUESTION IS .C YA DUMMIES

*September 22, 2015*

**Language Arts**

didnt think so.. so you thought IF YA WANNA PASS LISTEN 2 MEH .C .D .A .A .B YA WELCOME

*October 23, 2014*

**Language Arts - Please Check My Answer For This**

I think the answer is D

*September 12, 2014*

**Chemistry**

What mass of KOH is required to neutralize 200mL of 3.16 M HNO3?

*June 10, 2013*

**Math**

4 3/4 + v = 17 1/8 What is v

*October 16, 2012*

**Math**

4 3/4+v=17 1/8 What is v

*October 16, 2012*

**Math**

What is the value of y. Y-4/5=11/20

*October 16, 2012*

**english**

what is the complete and simple subject for "Valentine's day has a very interesting History."

*September 25, 2012*

**math**

The length of a train 15 cars long if 1 car is 18 m long

*January 20, 2011*

**Probability**

I need help calculating a c value such that f(x,y) is a probability density function. What makes a function a probability density function?

*November 8, 2010*

**Biology**

In what situations would sampling work best for estimating population size, in what situations would mark and recapture work best and why?

*October 3, 2010*

**Finance**

Year Cash Flow 1 $695,000 2 876,250 3 1,057,500 4 1,238,750 5 1,420,000 1. Calculate the IRR and NPV of this project utilizing a 12% discount rate and a 15% cap rate. Ms. Brown was able to secure a loan for $1,540,000, and an equity investor agreed to invest the remaining $660...

*July 19, 2010*

**REDWOOD ELEM**

1 OVER T MINUS 2 EQUALS T OVER 8 PLEASE HELP ME SOLVE

*June 4, 2010*

**chemistry**

what is the density of O2 gas at STP

*May 4, 2010*

**chemistry**

calculate the number of moles there are when a gas occupies a volume of 3.95L at 37 degrees C and .985 atm

*May 4, 2010*

**chemistry**

if 429 grams of gas occupies 25.6L at 49 degrees C at a pressure of 759 mmHg what volume will 4.29g of gas will occupy at 53 degrees C (assume pressure is unchanged)

*May 4, 2010*

**chemistry**

Calculate the pressure in atm of a balloon filled with 7.50g of helium gas if the balloon's volume decreases to 7.50L. Suppose the balloon's pressure and volume are originally 799 mmHg and 15.0L.

*May 4, 2010*

**chemistry**

calculate the pressure in atm of a balloon filled with 7.5g of helium gas if the baloons volume decreases to 7.5L suppose the balloons pressure and volume are originally 799 mmHg and 15L

*May 4, 2010*

**chemistry**

convert 353 torr to atm

*May 4, 2010*

**chemistry**

calculate the percent composition or w/v% of 3x10 to the 2nd power mL solution containing 15g of glucose

*May 4, 2010*

**chemistry**

calculate the amount of heat necessary ti raise the temperature of 8.5kg of water from 12.5 to 84 degrees C

*May 4, 2010*

**chemistry**

the specific heat of aluminum is 0.214 cal/g degrees C. calculate the heat necessary to raise the temperature of 55.5g of aluminum from 23 to 48.6 degrees C

*May 4, 2010*

**chem ap**

please tell me if i am correct a buffer is made using HF and NaF-with a pH of 3.00. compute the ratio of the conjugate base F- to weak acid HF. I previously found Ka of HF which is 7.2x10^-4 and the ph of HF is 3.15. the concentration of NaF would be 1.00x10^-2 ???? and so the...

*April 17, 2008*

**chem AP**

does CrCl3 form an acidic solution in water?

*April 15, 2008*

**math pre-algebra**

N to the power of negative 5 N to the power of negative 5 is aready in its simplest form. Unless you know the value of N, this problem can't be solved any further.

*January 22, 2007*

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