Does pH level affect the cleaning ability of soap, detergent or stain remover?If so, please give…

# Does pH level affect the cleaning ability of soap, detergent or stain remover?If so, please give…

• SCIENCE

Does pH level affect the cleaning ability of soap, detergent or stain remover?If so, please give…

pH is a measure of the acidity of a substance. More specifically, it measures the proton concentration via the following equation: pH=-log[H+]. The pH level will absolutely affect the…

• MACBETH

In Act II scene ii of Macbeth, what does Shakespeare mean when he says, “A little water clears us…

This is an extremely important line and concept in Macbeth. This line comes when Macbeth has just killed Duncan and Lady Macbeth is helping him wash his hands of the blood. Directly before she says…

• GRAMMAR

contemporary linguists Contemporary linguists claim that there is no future tense in English….

To me, this is simply a semantic issue. There clearly is a future tense in English, but we do not use an inflection of the verb to create a future tense. However, when we say “I will type an…

• TRIGONOMETRY MATH

Derive tan(a+b), using sin (a +b) and cos(a +b).

We have sin (a+b) = (sin a * cos b + cos a * sin b) and cos(a + b) = (cos a * cos b – sin a * sin b) Also tan (a + b) = [sin (a+b)] / [cos (a+b)] => [sin a * cos b + cos a * sin b] / [cos a *…

• MATH

What is the area of the triangle formed by the lines 4x – y – 9 = 0 , 3x – 2y – 3 = 0 and…

We have the three lines 4x – y – 9 = 0 , 3x – 2y – 3 = 0 and x – y = 0. First, let us find their points of intersection. We can write 4x – y – 9 = 0 as y = 4x – 9 Substitute this in…

• MATH

When 18 is added to x, we get y. When 18 is multiplied by 4x we get y^2. What are x and y

It is given that 18 added to x gives y => 18 + x = y Also, 18 multiplied by 4x gives y^2 => 18*4x = y^2 Now substituting y = 18 + x in 18*4x = y^2 => 18*4x = (18 + x)^2 => 72x = 18^2 +…

• MATH

If fog(x) = x – 3 and f(x) = x^2, what is g(x).

We have fog(x) = f(g(x)) = x – 3 and f(x) = x^2 and we need to determine g(x). Let g(x) = y => f(y) = y – 3 = x^2 => x = sqrt (y – 3) interchanging x with y gives y = g(x) = sqrt (x –…

• JANE EYRE

In Jane Eyre, why does Jane use reason to define her relationship with Mr. Rochester

I think that Jane uses reason to define her relationship with Mr. Rochester because she was brought up not expressing her emotions; she grew up at Lowood, and Gateshead, where she was not…

• THE GREAT GATSBY

Discuss the theme of The Great Gatsby–the bankruptcy of the American Dream. Use quotes from the…

A good place to begin would be to establish what the American Dream had been before the 1920s, the time period of the novel. Then you could examine the factors that had corrupted the original…

• CINEMA

How does the movie “The Searchers” represent the frontier?

Ford’s film can represent the concept of the frontier in a couple of ways. The first is that the men embark on a search without a fixed definition or end. Their search is for their families, but…

• GRAMMAR

Bart: Give it up Dad. Piggy ain’t coming back. How can you translate “ain’t coming…

Your understanding of the meaning of sentence is fine. You have to remember that you are working with a script that is trying to mimic casual American English, but in this case, the script is…

• THE GREAT GATSBY

How would I discuss Fitzgerald’s use of symbols in The Great Gatsby?How would I discuss…

This novel abounds with symbols! Here are a few of the major ones! Clothes and Books – represent the appearance of beauty and intelligence while simply being a facade. The shirts that Gatsby…

• MACBETH

Was Macbeth a pawn of fate or an agent of free will in Shakespeare’s Macbeth?

I would say that Macbeth would be described as a pawn of fate. He starts out as a great warrior that everyone is impressed with. His King promotes him to Thane of Cawdor and that is all free will….

• MATH

if f(x)=1/(x-2) and g(x)=4/x, what is (f*g)(x)?

f(x) = 1/(x-2) g(x) = 4/x We need to find the function f*g(x) ==> f*g(x) = f(g(x)) We will substitute with g(x) = 4/x ==> f(g(x)) = f(4/x). Now we will substitute with 4/x in place of x in…

• PRIDE AND PREJUDICE

In Pride and Prejudice, what is Mrs. Bennet’s reaction to Lydia’s scandal and what does it show…

As we read this excellent novel it is impossible not to ignore the harsh, biting irony of the authoress and the way that she shows her true opinion of a variety of characters. Of course, a frequent…

• MATH

MATH PROLEMGood old st. Nick needs your help getting from Andria’s house to Tong’s house on Xmas…

I can not draw you a picture. However I will describe how you could draw the parabola. We will assume that the tree is the y-axis. Also, the roof meets the tree at the origin point (0,0) The tree…

• LAW AND POLITICS

Does a school have any right by law to say if a student that writes for the school newspaper page…

Depending on the circumstances, a school may well have legal authority to do this. The controlling case here (the Supreme Court case that sets out the rule that applies) is Hazelwood v. Kuhlemeier…

• MATH

x^2-20x+75=y (x-100)^25=y vertex= (100,-25)COMPLETE THE SQUARE CORRECTLY and show the mistake in…

I believe that the question should be as follow: y= x^2 – 20x + 75 To complete the square, we will add and subtract ( x’s coefficient/2)^2 ==> We will add and subtract ( 20/2)^2 = 10^2 = 100…

• MACBETH

I would like some help with creating a parody for Act II of Macbeth.I need a parody for Act II,…

First, let’s be clear about what a parody is. Entoes has a great definition: A parody (also called send-up or spoof). . . is a work created to mock, comment on, or poke fun at an original work,…

• MATH

-2(x-3)-5(x-5)=4(x-2) -2x-5-5x-25=4x-8 -7x-30=4x-8 -11x=22 x=-2WHAT ARE THE MISTAKES AND SOLVE IT…

In your simplification, the mistakes have been highlighted in bold. -2(x-3)-5(x-5)=4(x-2) -2x – 5 -5x -25 = 4x – 8 ( should be -2*-3 = +6 instead of -5 and -5*-5 = +25 instead of -25) With the…

• A NEW ENGLAND NUN

What is the significance of Louisa’s obsessive neatness in “A New England Nun”?

Under a modern perspective one could certainly argue that Louisa’s compulsive and obsessive neatness is a consequence of the repressed emotions that she has pushed down within regarding the wait…

• MACBETH

What quotes can I use from Macbeth to explain the changes Macbeth goes through?

Act I sc 3 has the following quote of Macbeth’s aside: Cannot be ill, cannot be good: if ill,Why hath it given me earnest of success,Commencing in a truth? I am thane of Cawdor:If good, why do I…

• MATH

Mary said there is no difference between an 8% annual interest rate compounded quaterly and…

If an 8% annual interest rate is compounded quarterly, the rate per quarter is 8/4 = 2%. So an amount \$100, in a year would become \$100*( 1 + .02)^4 => \$100* 1.02^4 => \$100* 1.0824 =>…

• TO KILL A MOCKINGBIRD

What solution does Atticus offer to the problem of Dill’s presence in To Kill a…

It is understandably with some surprise that Scout and Jem discover Dill hidden underneath the bed in Chapter 14 of this great novel. Given the way that he had left without his mother’s knowledge,…

• MATH

A tank can be fully filled with water using a pipe that fills 20 liters in a minute. A bigger…

Let the volume of the tank be V ( in litres) The rate of filling the tank with a smaller pipe is 20 L / m Then, the time will be taker to fill the tank is T1 = V/20 …….(1) Now with the bigger…

• THE AWAKENING

What surprising news is revealed at the dinner table in The Awakening?

Please do not ask multiple questions. This is completely against enotes policy. I have edited your question to focus on one of your many questions. The answer to the question above can be found in…

• MATH

A man normally takes 5 hrs to travel at a certain speed from city A to B. One day, he increases…

Let the distance from A to B be D. ==> The time is T1 = 5 hrs. ==> Then, let the speed be S1 = D/T1 = D/ 5 ==> S1 = D/ 5 ==> D = 5*S1 ………….(1) After increasing the speed ( the…

• SOCIAL SCIENCES

Concerning deforestation, explain the quote “Years to grow, hours to go.”

Clearly this quote is literally meant to refer to the length of time it takes to grow trees to maturity. While no trees are mentioned specifically in the question, it would not be out of the…

• THE CATCHER IN THE RYE

Explain and give an example of diction in The Catcher in the Rye.

In The Catcher in the Rye, J. D. Salinger, through Holden Caufield, uses the following elements of diction: Tone: Holden’s voice is implicitly male voice American voice Folksy voice Youthful,…

• MATH

How to solve for u if u-3sqrt ( u ) = -2 using substitution ?

u-3sqrt(u) = -2 We need to solve using the substitution method. We will assume that sqrt(u) = x ==> Now square both sides. ==> u= x^2 Now we will substitute into the equation. ==> x^2 -…

• MATH

A man travels from A to B at 4 km/h and from B to A at 6 km/h. The total journey takes 45…

Let the distance from A to B is D Then, the distance from B to A is also D. Let us use the distance formula to find D. We know that: D = Speed * Time Given that the speed from A to B is S1 = 4…

• TO KILL A MOCKINGBIRD

How do the Cunninghams pay their bills in Harper Lee’s To Kill a Mockingbird?

In Harper Lee’s To Kill a Mockingbird, the Cunninghams, along with many other people in Maycomb, struggle financially—especially in light of the Stock Market Crash of 1929 which hit the poor the…

• HISTORY

Vietnam: Attack on USS MaddoxWhat makes this a turning point and not just another event?

This is a turning point because this event led to the major escalation of US involvement in the Vietnam War. Before the incident, the US was only involved in Vietnam in a relatively small way and…

• MATH

Find all real solutions to the equation 1 – 1/(x-2) = -4/(x^2-4).

1 – 1/(x-2) = -4/(x^2 – 4) First we will rewrite 1 as a fraction. ==> 1 = (x-2)/(x-2) ==> (x-2)/(x-2) – 1/(x-2) = -4/(x^2 -4) ==> (x-2-1)/(x-2) = -4/(x^2-4) ==> (x-3)/(x-2) = -4/(x^2…

• MATH

Solve the equation l 2x -2 l = x+ 1.

Given the equation l 2x -2 l = x+ 1 We need to solve for x. Since we have the absolute value, then we have 2 cases. Case(1): Positive value: 2x-2 = x+1 ==> x = 3 Case(2): Negative value:…

• MATH

Find P so that y= 3x is the tangent line to the curve y= x^2 + p.

Given the curve y= x^2 = P and the tangent line y= 3x. Since the tangent line is y= 3x. Then the slope is 3. But we know the slope is the derivative at the point of tendency. ==> y’ = 2x = 3…

• MATH

How to find the values of t so the curve y= x^3 + 2x^2 + tx + 3 has one horizontal tangent line….

Given the curve y= x^3 + 2x^2 + tx + 3 First we will determine the tangent line. Since the tangent line is horizontal, then the slope is 0. Now we need to find the point of tangent. We will…

• MATH

Express the perimeter P of a square as a function of the area.

We need write the area of a square as a function of the perimeter. Let us write the equation of the perimeter. Let the side of a square be x. Then the perimeter P = 4x. ==> x = P/4 Now we…

• MATH

Find the range of the function f(x) = l x-2 l + 3

Given the function f(x) = lx-2 l + 3 We need to find the range of f(x). The range of f(x) are all possible values for f(x). We know that the absolute values is always equal or greater than 0….

• MATH

Find the domain of the real valued function h defined by h(x) = sqrt(x-2).

Given the function: h(x) = sqrt(x-2) We need to find the domain of h(x). We know that the domain is given by the values of x such that the function h(x) is defined. Since h(x) is a square…

• MATH

If f(x) = -7x -5 and g(x) = 10x -12. Find (f+g)(x).

Given the functions: f(x) = -7x -5 g(x) = 10x -12 We need to find the function (f+g)(x). We will use the sum of functions properties to find the solution. We know that: f+g(x) = f(x) + g(x) = -7x…

• MATH

The function h is defined by h(x) = 3x^2 – 7x -5. Find h(x-2)

Given the function h(x) = 3x^2 – 7x -5 We need to find h(x-2). Then we will substitute with (x-2) in place of x into the equation. ==> h(x-2)= 3(x-2)^2 – 7(x-2) – 5 Now we will expand the…

• A RAISIN IN THE SUN

I need to know the audience and purpose of A Raisin in the Sun.

Whenever we think about questions such as the audience or purpose of a work of literature, often we need to infer the answer from the themes within the play. This play was not written for a…

• FAHRENHEIT 451

In the novel of Fahrenheit 451, how do the characters, Clarisse, Faber, the unidentified woman,…

Montag is heavily influenced by each one of those characters. Clarisse: Just talking with Clarisse stimulates Montag’s thought processes. She is honest and straightforward and Montag says he can…

• DEATH OF A SALESMAN

Examine the described the set and staging for the play. How is the set and staging significant to…

I’m not sure about the question either, but I suspect that it might be asking how it can be used to integrate the past with the present. The play moves back and forth and includes “real” scenes…

• JULIUS CAESAR

How does the character Marc Antony change during Julius Caesar?Be detailed please

During Caesar’s assassination the reader does not really know much about the character of Marc Antony. We simply know that he is the “right-hand man” of Julius Caesar and that he, as far as we…

• A SEPARATE PEACE

In A Separate Peace, why does Gene say that peace has returned to Devon?

The novel begins at Devon during the Summer Session of 1942 when Gene and Finny, along with the other members of their class, live lives that have not, as yet, been caught up in World War II….

• HISTORY

How did the Cold War affect popular culture?

The Cold War facilitated the concept of demonizing “the other.” When we examine how the Cold War influenced popular culture, it did so through the belief that the Communists were “wrong,” or were…

• EARLE BIRNEY

What is the author’s overall opinion of Canada as a country? CONSIDER THE LAST LINE OF THE POEM…

In this poem, Birney seems to have a very negative view of his country. He sees it as a country that is not really all that significant. It is overshadowed by its parents (England) and especially…