Saturday, 6 December 2014

In the book You Are Not So Smart by McRaney, what are some factors that influence decision making?

It is important to realize that McRaney calls these factors "cognitive biases."  It is also important to realize the full title of the book:  You are Not So Smart:  Why You Have Too Many Friends on Facebook, Why Your Memory is Mostly Fiction, and 46 Other Ways You're Deluding Yourself


McRaney admits that these factors or "cognitive biases" are actually "predictable patterns of thought or behavior" that lead people "to draw incorrect conclusions."...

It is important to realize that McRaney calls these factors "cognitive biases."  It is also important to realize the full title of the book:  You are Not So Smart:  Why You Have Too Many Friends on Facebook, Why Your Memory is Mostly Fiction, and 46 Other Ways You're Deluding Yourself


McRaney admits that these factors or "cognitive biases" are actually "predictable patterns of thought or behavior" that lead people "to draw incorrect conclusions."  McRaney also admits that we come "pre-loaded" with these biases.  In fact, there are so many that humans do not even notice them.  McRaney's best example of one of these factors has to do with confirmation.  McRaney calls this factor "confirmation bias."  In making decisions, McRaney says that people do research in order to find information to confirm their outlandish beliefs.  At the same time, they ignore whatever they find that would prove their outlandish beliefs to be wrong.  Any books found on a bookshelf or any bookmarks you have on your computer are the result of this. Another example McRaney gives of our functioning is the Wason Selection Task which involve people selecting one or more cards out of four.  Without going into the vast number of specifics of this task, suffice to say that due to our "cognitive biases" most people choose only one of the cards in order to prove the rule while, in reality, it takes two cards to prove it.  


Finally, it is important to realize the function of these factors.  They help continue with "maintenance of a positive self-image."  These factors that help influence your decisions are designed "to make you feel awesome about yourself."  The unfortunate thing is that these "cognitive biases" are false.  

What is the climax of "The Monkey's Paw"?

In "The Monkey's Paw," the climax, or highest point of suspense, occurs near the end of this story as Mr. White hurries to make the final wish on the monkey's paw.


Early on in the story, after having retrieved the monkey's paw from the fireplace where Sergeant Major Morris has suddenly thrown it, Mr. White makes a wish for £200 to pay off the mortgage for his and his wife's house. As it turns out, Mr. White...

In "The Monkey's Paw," the climax, or highest point of suspense, occurs near the end of this story as Mr. White hurries to make the final wish on the monkey's paw.


Early on in the story, after having retrieved the monkey's paw from the fireplace where Sergeant Major Morris has suddenly thrown it, Mr. White makes a wish for £200 to pay off the mortgage for his and his wife's house. As it turns out, Mr. White receives this exact amount, but, tragically, it is a payment from the company his son Herbert worked at—Herbert has been caught in the machinery and died.


After the death of their only child, the Whites are forlorn. They are now very lonely on their remote lane. After their son has been in his grave a week, Mrs. White cries by the window of the bedroom at night. Suddenly, she cries out for the monkey's paw, demanding it from her husband. "Go down and get it quickly, and wish our boy alive again." Mr. White retrieves the paw, but he is afraid of the look on his wife's face. As he hesitates, his wife orders him to wish. "I wish my son alive again," Mr. White commands the paw. This second wish is as careless as his first.


It is with the sound of a knock that the climax begins. When Mr. White lights a match, he hears another sound.



"He [stood] motionless, his breath suspended until the knock was repeated." Then he turned and fled swiftly back to his room and closed the door behind him. "It's Herbert!" cried the old woman.



She hurries to open the door; Mr. White hurries to prevent her. Groping madly on the floor, he finds the monkey's paw and breathes his third and final wish. This is the climax. "Herbert was too terrible to see." Just as Mrs. White is about to open the door, the knocking ceases as Mr. White's final wish is granted. The forlorn Mrs. White cries, and Mr. White runs to her side.

Friday, 5 December 2014

`lim_(x->0) sin(ax)/sin(bx) , a,b!=0` Evaluate the limit, using L’Hôpital’s Rule if necessary.

Given to solve,


`lim_(x->0) ((sin ax)/(sin bx))`


as `x->0` then the `((sin ax)/(sin bx)) =sin(0)/sin(0) =0/0` form


so upon applying the L 'Hopital rule we get the solution as follows,


as for the general equation it is as follows


`lim_(x->a) f(x)/g(x) is = 0/0` or `(+-oo)/(+-oo)` then by using the L'Hopital Rule we get  the solution with the  below form.


`lim_(x->a) (f'(x))/(g'(x))`



so , now evaluating


`lim_(x->0) ((sin ax)/(sin bx))`


=`lim_(x->0) ((sin ax)')/((sin bx)')`


...

Given to solve,


`lim_(x->0) ((sin ax)/(sin bx))`


as `x->0` then the `((sin ax)/(sin bx)) =sin(0)/sin(0) =0/0` form


so upon applying the L 'Hopital rule we get the solution as follows,


as for the general equation it is as follows


`lim_(x->a) f(x)/g(x) is = 0/0` or `(+-oo)/(+-oo)` then by using the L'Hopital Rule we get  the solution with the  below form.


`lim_(x->a) (f'(x))/(g'(x))`



so , now evaluating


`lim_(x->0) ((sin ax)/(sin bx))`


=`lim_(x->0) ((sin ax)')/((sin bx)')`


=`lim_(x->0) ((cos ax)(a))/((cos bx)(b))`


upon plugging the value of `x= 0` we get


=`((cos a(0))(a))/((cos b(0))(b))`


= `(a/b) (cos 0/cos 0)`


= `(a/b) (1/1)`


= `(a/b)`

What are some dangers of homesteading?

Homesteading is a contemporary term used to describe a mode of living, usually in a rural location, that involves self-sufficiency and sustainability. Some homesteaders like to live "off the grid" meaning they produce their own solar-powered electricity, or use hydro or wind powered devices to produce energy they may need. Most homestead homes use wood for heat, depending on the climate, or passive solar, and some use propane as a back-up source of heat. If...

Homesteading is a contemporary term used to describe a mode of living, usually in a rural location, that involves self-sufficiency and sustainability. Some homesteaders like to live "off the grid" meaning they produce their own solar-powered electricity, or use hydro or wind powered devices to produce energy they may need. Most homestead homes use wood for heat, depending on the climate, or passive solar, and some use propane as a back-up source of heat. If one is knowledgable about things like first aid, carpentry, weather, and food preservation, there need not be many dangers associated with this lifestyle. However, if a homesteader is living in a remote location, one potential danger is a medical emergency requiring professional help. If there is no phone service, then one cannot get help without traveling to find it. 


Weather emergencies can also present problems, such as intense rainstorms, which may cause damage to structures, or major snowstorms, which might make travel difficult or impossible. Having enough food, water and other supplies to make it through a period of being snowed-in in the winter time is crucially important for homesteading. 


Earlier in American history, homesteading referred to those in the 19th century who moved westward to settle land that was more or less up for grabs. One had to select a location carefully to make sure there was a safe and accessible source of water and enough materials nearby to construct a home. Wildlife and fish for food were also important. John Chapman, also known as Johnny Appleseed, was well known for having fruit trees available for purchase to settlers looking to plant food crops on their newly-acquired land; apples were important because they provided a source for hard cider, the main beverage of the era. The early Colonial settlers were also homesteaders, and those who lived in the Northeast faced many dangers due to being unused to the harsh winter climate, which was much colder and more severe than these settlers were used to in England. Starvation was not uncommon, and poor health due to exposure to cold and insufficient nutrition led to people being susceptible to illness.

Thursday, 4 December 2014

`y=sqrt(x) , y =1/2x` Find the x and y moments of inertia and center of mass for the laminas of uniform density `p` bounded by the graphs of...

For an irregularly shaped planar lamina of uniform density `(rho)` , bounded by graphs `y=f(x),y=g(x)` and `a<=x<=b` , the mass `(m)` of this region is given by:


`m=rhoint_a^b[f(x)-g(x)]dx`


`m=rhoA` , where A is the area of the region,


The moments about the x- and y-axes are given by:


`M_x=rhoint_a^b 1/2([f(x)]^2-[g(x)]^2)dx`


`M_y=rhoint_a^bx(f(x)-g(x))dx`


The center of mass `(barx,bary)` is given by:


`barx=M_y/m`


`bary=M_x/m`


We are given:`y=sqrt(x),y=1/2x`


Please refer to the attached image. Plot of `y=sqrt(x)` is red in...

For an irregularly shaped planar lamina of uniform density `(rho)` , bounded by graphs `y=f(x),y=g(x)` and `a<=x<=b` , the mass `(m)` of this region is given by:


`m=rhoint_a^b[f(x)-g(x)]dx`


`m=rhoA` , where A is the area of the region,


The moments about the x- and y-axes are given by:


`M_x=rhoint_a^b 1/2([f(x)]^2-[g(x)]^2)dx`


`M_y=rhoint_a^bx(f(x)-g(x))dx`


The center of mass `(barx,bary)` is given by:


`barx=M_y/m`


`bary=M_x/m`


We are given:`y=sqrt(x),y=1/2x`


Please refer to the attached image. Plot of `y=sqrt(x)` is red in color and plot of `y=1/2x` is blue in color. The curves intersect at `(0,0)` and `(4,2)` .


First let's find the area of the region,


`A=int_0^4(sqrt(x)-1/2x)dx`


`A=int_0^4(x^(1/2)-1/2x)dx`


`A=[x^(1/2+1)/(1/2+1)-1/2(x^2)/2]_0^4`


`A=[2/3x^(3/2)-x^2/4]_0^4`


`A=[2/3(4)^(3/2)-4^2/4]`


`A=[2/3(2^2)^(3/2)-4]`


`A=[2/3(2)^3-4]`


`A=[16/3-4]`


`A=4/3`


Now let's evaluate moments about the x- and y-axes,


`M_x=rhoint_0^4 1/2((sqrt(x))^2-(1/2x)^2)dx`


`M_x=rhoint_0^4 1/2(x-x^2/4)dx`


Take the constant out,


`M_x=rho/2int_0^4(x-x^2/4)dx`


`M_x=rho/2[x^2/2-1/4(x^3/3)]_0^4`


`M_x=rho/2[x^2/2-x^3/12]_0^4`


`M_x=rho/2[4^2/2-4^3/12]`


`M_x=rho/2[16/2-64/12]`


`M_x=rho/2[8-16/3]`


`M_x=rho/2(8/3)`


`M_x=4/3rho`


`M_y=rhoint_0^4x(sqrt(x)-1/2x)dx`


`M_y=rhoint_0^4(xsqrt(x)-1/2x^2)dx`


`M_y=rhoint_0^4(x^(3/2)-1/2x^2)dx`


`M_y=rho[x^(3/2+1)/(3/2+1)-1/2(x^3/3)]_0^4`


`M_y=rho[2/5x^(5/2)-x^3/6]_0^4`


`M_y=rho[2/5(4)^(5/2)-4^3/6]`


`M_y=rho[2/5(2^2)^(5/2)-64/6]`


`M_y=rho[2/5(2)^5-32/3]`


`M_y=rho[64/5-32/3]`


`M_y=rho[(192-160)/15]`


`M_y=32/15rho`


The center of mass can be evaluated by plugging in the moments and area as below:


`barx=M_y/m=M_y/(rhoA)`


`barx=(32/15rho)/(rho4/3)`


`barx=(32/15)(3/4)`


`barx=8/5`


`bary=M_x/m=M_x/(rhoA)`


`bary=(4/3rho)/(rho4/3)`


`bary=1`


The coordinates of the center of mass are `(8/5,1)`


Wednesday, 3 December 2014

What sort of story does the title lead us to expect?

The title of this story is an allusion to the sacrificial lamb, or Lamb of God, a term from Christianity used to describe Jesus. Specifically, Jesus is called the Lamb of God because he sacrificed himself as atonement for the sins of others.


As a result of this allusion, a potential reader might expect to find a couple of things. Firstly, like Jesus's sacrifice, the reader might expect that this story is one about death....

The title of this story is an allusion to the sacrificial lamb, or Lamb of God, a term from Christianity used to describe Jesus. Specifically, Jesus is called the Lamb of God because he sacrificed himself as atonement for the sins of others.


As a result of this allusion, a potential reader might expect to find a couple of things. Firstly, like Jesus's sacrifice, the reader might expect that this story is one about death. Secondly, they might expect to find a "sin" of some description to feature in this story.


By using this title, Dahl sets the reader up for Patrick's death, the sacrificial lamb, and the "sin" he commits by ending his marriage to Mary. However, by not alluding directly to these events in the title, Dahl effectively build's the reader's anticipation for how the title will apply to the parts of the story.

Tuesday, 2 December 2014

How should I approach a 500-word assignment to reflect on and describe my experience with languages?

What you need to say in this essay obviously depends on your own experience with learning one or more languages. 


A good starting point would be to create an introductory paragraph giving an overview of your basic language skills. You would start by specifying your native language. You would then briefly list the other languages you know. You should then include a transition sentence between your introduction and the main body of your essay.


The...

What you need to say in this essay obviously depends on your own experience with learning one or more languages. 


A good starting point would be to create an introductory paragraph giving an overview of your basic language skills. You would start by specifying your native language. You would then briefly list the other languages you know. You should then include a transition sentence between your introduction and the main body of your essay.


The main body of your essay should include one heading for each language you intend to discuss. Within specific language sections, you might first mention how old you were when you first encountered the language, the way you acquired it, and your level of fluency. You would discuss whether you picked it up informally while traveling or took classes on it. You might also discuss whether you have lived or traveled in a country where the language was spoken and other informal methods of developing fluency such as watching movies or listening to songs in that language. 


Your final paragraph should attempt to reflect on and draw conclusions about your personal experiences with languages. 

How are race, gender, and class addressed in Oliver Optic&#39;s Rich and Humble?

While class does play a role in Rich and Humble , race and class aren't addressed by William Taylor Adams (Oliver Opic's real name) ...