Sunday

September 25, 2016
Total # Posts: 43

**Chemistry**

7. For the equilibrium system below, which of the following would increase the concentration of 𝐻2𝑂(𝑔)? 𝐶(𝑠) + 𝐻2𝑂(𝑔) + 131𝑘𝐽 ↔ 𝐶𝑂(𝑔) + 𝐻2(𝑔) a. ...

*June 4, 2016*

**physics**

A ball is kicked with an initial velocity of 16.1 m/s in the horizontal direction and 14.4 m/s in the vertical direction. What maximum height is attained by the ball?

*September 18, 2015*

**Chemistry**

What is the concentration (M) of K+ in a solution made by mixing 25.0 mL of 0.100 M KCl with 50.0 mL of 0.0500 M KCl? Can you please explain how to solve this problem. I thought to do 25*.1+50*.05=5 But that seems wrong. What should I try to do?

*September 16, 2015*

**Physics 2**

I get 4 degrees, let me know what you guys get

*August 17, 2015*

**Physics 2**

If water at 0 oC is heated, it actually decreases in volume until it reaches Select one: a. 1 oC. b. 2 oC. c. 3 oC. d. 4 oC. e. 5 oC.

*August 17, 2015*

**Algebra**

How did you do 8/(u-4) which turned in to 8(u-4)

*January 14, 2014*

**Algebra**

Briana can row 4 miles per hour is still water. It takes as long to row 8 miles upstream as 24 miles downstream. How fast is the current?

*January 14, 2014*

**English**

That is right

*January 12, 2014*

**Urgent**

3) List 3 strategies to help escape riding in a vehicle with an impaired driver.

*October 7, 2013*

**Algebra 1**

Or is could be h/3+p/3+8=k

*October 7, 2013*

**physics(*URGENT*)**

or could you show me your full working?

*October 6, 2013*

**physics(*URGENT*)**

for y(t) do you use the value in the x or y direction?

*October 6, 2013*

**Math Calculus**

The function f is given by the formula f(x)=6x^3+17x^2+4x+21/x+3 when x<–3 and by the formula f(x)=2x^2–4x+a What value must be chosen for a in order to make this function continuous at -3?

*May 3, 2013*

**Fluid Mechanics**

Calculate the pressure at a point 5 m below the free water surface in a liquid that has a variable density given by equation o =(350+Ay)kg/m3, where A = 8 kg/m4 and y is the distance in meters measured from the free surface.

*September 9, 2012*

**Chemistry**

A solution contains 0.400 g of NaOH in 20.0 mL of solution. What is its molarity

*April 24, 2012*

**chemistry!**

The standard molar heat of vaporization for water is 40.79 kJ/mol. How much energy would be required to vaporize 4.00 mol of water? Answer in units of kJ

*March 8, 2012*

**chemistry**

2.852

*March 8, 2012*

**chemistry**

13(36.461)=473.993 473.993/.125=3791.944

*March 8, 2012*

**sociology**

According to Max Weber, rational motives are easy to understand and predict because ends and means can be calculated and behavior changed on the basis of experience. True False I think false..maybe...help

*September 23, 2011*

**sociology**

True.. I guess.

*September 23, 2011*

**sociology**

All deviance is a crime but not all crime is deviance. Question 6 answers a)True b)False

*September 23, 2011*

**physics **

The density of a sample of air is 1.235 kg/m3, and the bulk modulus is 1.42 · 105 N/m2. a) Find the speed of sound in the air sample. b) Find the temperature of the air sample. Give answer in °C. Do not enter unit. Yanlýþ. Denemeler

*April 1, 2011*

**URGENT**

URGENT

*October 28, 2010*

**URGENT**

URGENT

*October 28, 2010*

**Physics**

The problem contains graphics that I don't know how to show other than in an image format: h t t p : / / b i t . l y / c D H P V M h t t p : / / b i t . l y / 9 m b y C R

*September 8, 2010*

**Physics**

What does d= ? (Not sure what to take the derivative of)

*September 7, 2010*

**Physics**

And I still haven't gotten an answer for my previous question here: h t t p : / / b i t . l y / d g 6 o O F

*September 7, 2010*

**Physics**

You do have to solve for the take-off speed, but I have the answers. I just don't know the procedure for solving the problem.

*September 7, 2010*

**Physics**

I just said the takeoff speed is 9.0 m/s.

*September 7, 2010*

**Physics**

ANSWER: Vo = 9.0 m/s She lands 0.21 m past the opposite bank I'm not sure how to get those numbers, though.

*September 7, 2010*

**Physics**

No, the initial velocity has to be solved for.

*September 7, 2010*

**apchem**

what is the density of vinegar? thanks

*March 16, 2010*

**apche,m**

what is the density of vinegar? thanks

*March 16, 2010*

**Economics**

Hi, Please I researched so badly, I need help to find information about Cybernomics issues and solutions. Please can you help me. Give me a site I can go to that will have information concerning Cybernomics. Please Thank You.

*June 9, 2009*

**9th grade, Socials**

what is a colonie?

*January 18, 2009*

**Physics Questions!**

An interference pattern is set up by two point sources of the same frequency, vibrating in phase with one another. A point on the second nodal line is 50.0 cm from one source and 59 cm from the other. The speed of the waves is 35 cm/s. Calculate the frequency of the sources. I...

*December 15, 2007*

**english**

hmhm you could say an "oasis of serenity amidst the bustling city." Serenity means a peaceful or calm state. As to your second question, I am not sure.

*December 11, 2007*

**Bobpursley for this question please, physics**

I think I figured it out, you just switch the N and the mlambda, correct?

*December 11, 2007*

**Bobpursley for this question please, physics**

I dont understand though why you can make w/mlambda I thought it was the otherway around? (in regards to this w/N sinTheta= m lambda N= w/(m lambda) * sinTheta N= w/(m lambda) * x/L

*December 11, 2007*

**une lab de physics**

Hello, we are doing a lab dealing with diffraction gratings. The problem I have is that we are supposed to find the number of slits, N, based on gathered information. I have x, L, d, m, and w, just not N, which is what I am trying to find. I also have the wavelength. Is this ...

*December 11, 2007*

**Physics Lab**

yes! It works I got an answer or 35.2 so there were approximately 35 slits! But wow, thanks soo much! This really saved me! I appreciate this!

*December 11, 2007*

**CALCULUS**

what is the derivative of ln(x-1)? If you are studying the calculus of logarithms your question surprises me, since that is one of the most basic ones in that topic. in general if y = ln("anything") then y' = 1/"anything" * derivative of "anything&...

*May 6, 2007*

**Calc**

I have a test soon.. and I really need to know how to do this problem.. please help!!! lim as x-->0 sin^2(x)/tan(x^2) the answer is 1, but I have no clue how to get that! Use series expansions. Look up Taylor expansion on google and study that topic first. Using series ...

*March 30, 2007*

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