Tuesday

July 29, 2014

July 29, 2014

Total # Posts: 753

**Chemistry**

How do I do this?? Calculate the pH at the equivalence point for the titration of 0.20 M aniline (C6H5NH2, Kb = 3.8 x 10-10) with 0.20 M HCl. [Hint: remember the dilution factor caused by addition of titrant to the aniline solution.]

**physics**

At her wedding, Jennifer lines up all the single females in a straight line away from her in preperation for the tossing of the bridal bouquet. She stands Kelly at 1.0 m, Kendra at 1.5 m, Mary at 2.0 m, Kristen at 2.5 m, and Lauren at 3.0 m. Jennifer turns around and tosses th...

**accounting**

I was given gross accounts receivable $15,200,000 and $17,600,000 respectively; allowance for uncollectible accounts at the begining and end of the year $1,400,000 and $1,550,000; expense for estimated uncollectible accouts $750,00 which was 1% of sales; no recoveries of accou...

**Science**

If you tested bleach with an indicator, it would be a BASE with a high pH, because it is a very strong cleaning product.

**Science**

If you tested bleach with an indicator, it would be a BASE with a high pH, because it is a very strong cleaning product.

**physics**

A test rocket is fired vertically upward from a well. A catapult gives it an initial speed of 80.2 m/s at ground level. Its engines then fire and it accelerates upward at 4.20 m/s2 until it reaches an altitude of 960 m. At that point its engines fail, and the rocket goes into ...

**physics**

An inquisitive physics student and mountain climber climbs a 50.0 m cliff that overhangs a calm pool of water. He throws two stones vertically downward, 1.00 s apart, and observes that they cause a single splash. The first stone has an initial speed of 2.08 m/s downward. (a) H...

**physics**

Nevermind! I got it: (a) What is the speed of the ball at the bottom of the first plane? v2 = vi2 + 2 a (x - xi) (b) How long doe is take to roll down the first plane? v = vi + a t (c) What is the acceleration along the second plane? v2 = vi2 + 2 a (x - xi) (d) What is the bal...

**physics**

A ball starts from rest and accelerates at 0.520 m/s2 while moving down an inclined plane 9.65 m long. When it reaches the bottom, the ball rolls up another plane, where, after moving 14.40 m, it comes to rest. (a) What is the speed of the ball at the bottom of the first plane...

**Literature**

Can anyone PLEASE find me a short summary of these poems? the forsaken merman-matthew arnold the portrait- robert browning

**Chemistry**

Two successive reactions, D-->E and E-->F, have yields of 48% and 73%, respectively, What is the overall percent yield for conversation of D to F?

**Chemistry**

Two successive reactions, D-->E and E-->F, have yields of 48% and 73%, respectively, What is the overall percent yield for conversation of D to F?

**Chemistry**

Would the balanced equation for this be: B2H6(g)+ 3H2O(l)--> 2H3BO3(s)+ 3H2O(g)

**Chemistry**

Would the balanced equation for this be: B2H6(g)+ 3H2O(l)--> 2H3BO3(s)+ 3H2O(g)

**MATH**

EVALUATW (-8B)^2 AND -8B^2 WHEN B=10. (-8B^2)= -8B^2= SOLVE USING THE ADDITION PRINCIPLE. 3.8=S=0.1. THE SOLUTION IS S= THANK YOU

**MATH**

Translate to an algebraic expression. The product of 21% and some number. The translation is= Type the percentage as a decimal. use d to represent some number.

**Math**

4/-3+(5/-12)= Simplify your answer. Type a fraction.

**spanish 2**

*Estamos en Philadelphiao *No estamos listos. *Como esta usted?

**Physics**

A ball travels at 59.78 m/s for a distance of 16.45768956 meters, then decelerates at -89.67 m/s2 until is reaches a velocity of -89.67 m/s, then accelerates at 59.78 m/s2 until it reaches a velocity of 16.45758956 m/s, as shown in the graph to the right. What's the averag...

**socio**

i'm talking about disparities like african americans having higher rates of hypertension or infant mortality or homicide

**socio**

what are the consequences of health disparities on everyone

**elementary**

What is the rule in math?

**Math**

[6x + 5]/3 = 3x/7 - 2 Please help.

**math**

Wait, I forgot / means division, I thought you needed to fill in the correct symbol

**math**

All you have to do on those problems is put an operation symbol in place of the / and see if it works

**english**

Thank you!

**english**

Analogies: 1) Worthwhile : Valuable :: A) Worthless : priceless B) Beneficial : Worthy *I think it's A* 2) Store : Supply :: A) Department : section B) Provision : dispensary C) Keep : Distribute D) Stockpile : Reserve *I have no idea what this one is*

**3rd grade**

Well, I have been out of 3rd grade for awhile, but i am in middle school:) I think Ali could use 6 hundreds, and 24 ones. Therefore turning the 2 tens into ones (2x10= 20) and adding the ones she already had (20+4=24) ~Hope I helped;)

**English**

Ask yourself what part of speech "two" is- both are completely different parts of speech, but one of your answers is right

**Financial Math**

Sales is 59250 with 100% what is cost of sales: ? with 31.97%, Gross profit : ? with ?%, Personnel Cost : 18486.00 with ?%, Expenses: ? with 10.21%, Direct Operating Profit: ? with ?% what are the values of (?)

**elementary math**

I say it's easier to multiply them because you keep the same denominator...i think

**elementary math**

I say it's easier to multiply them because you keep the same denominator...i think

**physics**

part b is 31.87

**physics**

part b is 31.87

**Algebra**

Limits? I don't get it?

**Algebra**

Determine the vertical asymptotes for the graph function: f(x) = 4/x+10 g(x) = x^4 + 2/x h(x) = x^2+4/x(x+5)(x-2) f(x) = x+5/x^2 +4x - 32

**science**

what are the protections that exist to safeguard and protect the galapagos islands?

**Algebra**

Please solve: a. 1/3 - 5/6 = 1/x b. t+1/3 - t-1/2 = 1

**Science/Geology**

Thank you!

**Science/Geology**

I feel like an idiot for even asking, however, here goes... I need to do a "graphical representation of mechanical and chemical weathering, water, wind, and ice erosion." I have read through my text numerous times and still am not sure how to do this. Does anyone kno...

**Algebra**

Thank you!

**Algebra**

I would choose B. Am I correct?

**Algebra**

Find the equation of the line parallel to the line 3x + y = 5 and containing the point (4, – 2).

**Algebra**

I did this problem, but would like to compare answers please if someone can help. Thanks! Find the equation of the line parallel to the line 3x + y = 5 and containing the point (4, – 2).

**Math**

Thanks! I knew I would get this stuff! Thanks for your help!

**Math**

Yes so my conclusion is that V(x) = x (7 – 2x)^2 is this correct?

**Math**

Suppose you take a piece of cardboard measuring 7 inches by 7 inches, cut out square corners with sides x inches long, and then fold up the cardboard to make an open box. Express the volume V of the box as a function of x.

**Math**

I figured it out. Thanks for your help!

**Communications Theory**

Thanks for your help!

**Communications Theory**

Can you give an example of "framing" from the present week's news? What words or images are used to "set" the frame?

**Algebra**

Given f(x)=rootsignx-2 and g(x) = x-7 what is the domain of the quotient function? A. (-infinity,2] B. )-infinity,7 U (7, infinity) C. [2,7) U (7, infinity) D. (2,infinity)

**Algebra**

But that is for the given line not the parallel or perpendicular one? So what I see is as follows and is correct? a. For the Parallel slope we change to the form y = mx + b, and the value of m is the slope 5x - 2y = 10 -y = -5x + 10 y = 5x - 10 the slope is 5 m = 5 Why are we ...

**Algebra**

So is the slope of the given line 2.5? I don't need to know that, but just wanted to make sure. Thanks!

**Algebra**

Given line = 5x – 2y = 10 Find the slope for a line parallel to the given line Find the slope for a line perpendicular to the given line

**Algebra**

Let g(x) = 10-x/2+x and then a)Find g (–1) b)State the domain of the function c))Find g (t + 1) and simplify as much as possible

**science**

how do fish move around

**Physics**

A ball is thrown vertically upward with a speed of 1.53 m/s from a point 4.21 m above the ground. Calculate the time in which the ball will reach the ground. {Distance Above Ground} = D = (4.21) + (1.53)*t + (1/2)*(-9.8)*t^2 {D = 0} ----> {Time To Reach Ground} = 1.096 sec ...

**physics**

A 2.7-kg box is released on a horizontal surface with an initial speed of 2.9 m/s. It moves on the surface with a deceleration of 0.27 m/s^2. Calculate the kinetic friction force on the box. I couldn't find an example of this anywhere but...is it: {Friction Force} = m*a = ...

**Physics**

What should be the angle between two vectors of magnitudes 3.20 and 5.70 units, so that their resultant has a magnitude of 6.10 units? Cos x = (b^2 + c^2 - a^2) / 2bc Cos x = (3.2^2 + 5.7^2 - 6.1^2) / (2 * 3.2 * 5.7) Cos x = 5.52/36.48 Cos x = 0.15 x = 81.3 degrees

**chemistry concentrations**

Can someone please help me with the following problem? 1.Calculate the volume of 1.88 M NaI that would be needed to precipitate all of the Hg+2 ion from 482 mL of a 1.61 M Hg(NO3)2. The equation for the reaction is thank you!

**algebra**

how do you multiply 4y squared and 4x squared?

**high school biology**

What is the relationship between codon and gene.

**Pre Cal.**

è is theta.

**Pre Cal.**

If cscè= -5/4 and 180degree < è < 270 degree, find tanè. (-3, -4) r=5 tan=y/x=-4/-3=4/3 Is this correct?

**English**

what does lidds stand for?

**8th grade**

i have this at 7th grade

**Health**

What cellular process involves mitosis?

**Math**

What is the area of a circle with a diameter of 12 ft by pi? Please help me with the formula~thanks!

**Advanced Math.**

List the possible rational roots of 2x^3 + 17x^2 + 23x - 42 = 0 My answer: the possible rational roots are {±1, ±2, ±3, ±6, ±7, ±14, ±21, ±42. ±1/2, ±3/2, ± 7/2, ±21/2}. Correct?

**Pre-Cal.**

Which of the following results in the graph of f(x)=x^2 being expanded vertically by a factor of 3 and? reflected over the x-axis? a. f(x)=1/3x^2 b. f(x)= -3x^2 c. f(x)= -1/x^2 +3 d. f(x)= -1/3 x^2

**Pre-algebra**

HELP!!!!!!

**Pre-algebra**

no like changing money wise interst to percentages.

**Pre-algebra**

how do you change interst to percents?

**Math**

How is writing a percent as a fraction like writing a decimal as a fraction?

**Math**

How do you change 0.8571428 to a percent?

**Math**

the total fare for 2 adults and 3 childrren on the Tilt a Whirl ride $14.00. If a child's fare is 1/2 of an adult's fare, what is the adult fare? we know the answer is $4 for adults and $2 for children. How do we figure this out though in 4th grade terms -no algebra ye...

**Geography**

My question is: How are the tribes of the Amazon and other rainforests affected by deforestation?

**Math**

Rate is 6% , time is 3 years, interest is $216.00, what is the principal?

**12**

what do you call a female bug that floats

**math**

Duhhh all seventh graders get this problem

**math**

1262.47

**physics**

Consider that a coin is dropped into a wishing well. You want to determine the depth of the well from the time t between releasing the coin and hearing it hit the bottom. Suppose that t=2.059 s and assume the speed of sound in air is 330 m/s. What is the depth of the well? Can...

**pigskin geography**

the state capitals in which a game will be played

**physics**

A ball of mass m = 500g moves around a vertical axis with an angular speed ù. It is attached to two strings of length: the upper a = 30 cm and the lower b = 40 cm.Both strings are taut and perpendicular to each other. Each of the strings beaks if the tension exceeds 12....

**math**

alright thx!

**math**

is the second circle twice as big? like is that how they compare?

**math**

How is the circumference of a circle with radius 9cm related to the circumference of a circle with diameter 9cm? i dont understand this.Help?? Thanks:)

**Research Project on Computer Confidentiality**

just to break up the first sentence of everyones anwers, i'm doing this too! lol it's difficult, yes, but keep going! i found a decent site on princeton.edu. type the question into bing and look at the web sites. i can't remember what the whole address is, sorry! i...

**science**

An object travelling in a circle is accelerating ecause it is constantly changing ____________________.

**social studies**

legends myths or stories passed on by word of mouth

**Chemistry**

Need Help with these two problems 1.One piece of copper jewelry at 111Â°C has exactly twice the mass of another piece, which is at 36.0Â°C. Both pieces are placed inside a calorimeter whose heat capacity is negligible. What is the final temperature inside t...

**English**

Which is the correct sentence when using verb form and verb tense? Since American Idol premiered on television, many talented contestants have appeared on the show. 8b. Since American Idol premiered on television, many talented contestants appeared on the show.

**Hisotry- Dialectics**

What are Hegel's, Fukuyama's, Marx's and St.Augustine's dialectics and how do they differ from each other. What are their views on the progression of humanity? I know that Hegel's view said that an thesis gave rise to an antithesis which was resolved by a t...

**Math**

Are there any prime numbers divisible by 2? Explain.

**Chemistry**

I am trying to find the ground state for, Pb2+ I went back two on the chart and came to Hg. And entered it's ground state. Why is this wrong?

**Chemistry**

Without referring to a periodic table, pick the electron configuration of elements with the following atomic numbers and classify the elements. (Type your answer in noble gas notation using the format [Ar] 4s2 3d10 4p2 for [Ar]4s23d104p2.) (a) 17 (b) 20 (c) 23

**Chemistry**

Write the ground state electron configurations of the following ions. (Type your answer using the format [Ar] 4s2 3d10 4p2 for [Ar]4s23d104p2. If the configuration is a noble gas, enter the noble gas in brackets, for example [Ne] for F -.) Pb2+ Au+ Mn2+

**college english**

not sure what to do

**college english**

How to correct this sentence Since 1980, the aids epidemic has continued to spread widely throughout the world.

**chemistry**

A 43 kg person drinks 490 g of milk, which has a "caloric" value of approximately 3.0 kJ/g. If only 16% of the energy in milk is converted to mechanical work, how high (in meters) can the person climb based on this energy intake? [Hint: The work done in ascending is ...

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