Saturday

April 19, 2014

April 19, 2014

Total # Posts: 1,660

**Science**

I need to find info. about earthquakes, such as what causes them..what are the consequences of earthquake..definition of earthquake...etc. Thank you

**Science**

I have to write a paper on what I consider to be "bad science" and proved an example of what is bad science such as something from the media, commericals, scientist's statement. I was wondering if someone could help me find an example of "bad" science T...

**SCIENCE**

I have to find research about Jan van Helmont's work on Spontaneous Generation and I am having trouble finding info. about it and how he conducted the experiment..also i have to figure out the strengths and weaknesses of the experiment and is it considered good science or ...

**Science**

I have to research about Francisco Redi's Spontaneous Generation. I am having a hard time finding info. about it and how he did the experiment. I have found a little bit but not enough. I was wondering if someone could help me find info. about it. Also I have to define the...

**Math**

I am not understanding Frequency Tables and Line plots. I need to complete a frequency table, but the dta given does not have any repeats. HELP!!

**Cost Accounting**

Estimating a cost function, high-low method? Reisen Travel offers helicopter service from suburban towns to john F. Kennedy Airport. Each of it's 10 helicopters makes between 1,000 and 2,000 round trips per year. The records indicate that a helicopter that has made 1,000 r...

**Math (Calculus)**

y= x^(2x+1) find the derivative of the function using natural log

**statistics**

Hypothesis testing on a paired sample, using the sign test. An educational psychologist suspects that having cats improves performance on statistics finals. With funding from the Socks foundation, she did a pair study, with carefully chosen pairs of students, one having a cat,...

**Essay helpplease**

Ohh. Okay, i get it now. Thanks so much!

**Essay helpplease**

"In Emily Dickinson’s poetry, there are images and ideas that all humans can identify with, including love, beauty, and loneliness" , isnt that the third sentence of "Purpose of essay(can be implied)"? Urms , I'm suppose to be doing an essay on thr...

**Essay helpplease**

Yes, the characters and the roles they fulfill are stated in my thesis. is my 'explicity stated plan' written correctly?

**Essay helpplease**

this is for sentence 4. the 'explicity stated plan'

**Essay helpplease**

That's me *May btw.. i was on my sister's computer who also uses jiskha.

**Essay helpplease**

My teacher gave us an outline in how to write the intro paragraph. He said to follow: The things u have to have are: 1. Linkage to real life 2. Thesis statement 3. Purpose of essay(can be implied) 4. Explicity stated plan. So, im guessing he wants the thesis somewhere after &#...

**AP US History**

What is the best book to buy to help me review for the AP test?

**Math**

so they dont cut in line

**FRENCH I REALLY NEED HELP PLZ!**

SraJMcGin answered it. She said : 1. What the reasons for which the children leave the house when they are older? 2. Why are there more children who are raised by parents living in a common-law marriage. (that's what "free union" means here)

**Science**

How much energy is released when a 5600-g sample of water cools from 99 degrees C to 28 degrees C. The specific heat capacity of water is 4.18 J/(g*degrees C) Can someone please tell me the steps to do this?

**Literature (short story)**

hey guys i the same exam.. did you guys pass? and how can i get the answers?

**Math**

19-7-5=

**year 7 science**

My science homework is to collect 10 food labels which i have done and write down the food energy per 100g from each food in kilogrammes but the food labels i have have only got the energy in kj. i`m cofussed because i don`t understand the question and i can`t ask my teacher b...

**To Kill A MockingBird ..please help.**

They are significant because they helped the readers of the time see the social injustice in segregation. They help form the way we see social classes today.

**Algebra 2**

Find an equation of variation where y varies directly as x and inversely as the square of w, and y=24 when x=8 and w=3.

**Algebra 2**

Find an equation of variation where y varies directly as x and inversely as the square of w, and y=24 when x=8 and w=3.

**philosophy**

Thanks.

**philosophy**

For some philosophers, writing is an unfortunate necessity, a means of communication that is at best irrelevant to the philosophical thought it expresses and at worst a barrier to that thought. The words in which the philosophical investigator writes up his or her results, acc...

**philosophy**

For some philosophers, writing is an unfortunate necessity, a means of communication that is at best irrelevant to the philosophical thought it expresses and at worst a barrier to that thought. The words in which the philosophical investigator writes up his or her results, acc...

**English**

Officials are considering placing the sturgeon on the endangered species list. If such an action is taken, ships, including those that carry goods and produce, will not be allowed to travel on the large rivers in our region that serve as breeding grounds for the fish. If ship ...

**Math ; please please help.**

1. Explain in detail how to determine the value of the independent variable in a quadratic relation if the value of the dependent variable is known. Please check my answer - You would substitute the value for the dependent variable, then you would solve for the independent var...

**chemistry**

irvine yeayuhhhh

**english**

Which sentence is written correctly? 1. A mother and two children become one of those victims. 2. A mother and two children become those victims.

**math riddle ALGEBRA WITH PIZZAZZ**

I have a question okay books never written: yours forever by_______________________ the incompetent bullfighter by_________

**science**

When gametes form, what happens to the alleles for each trait?

**science**

I found the answer. So nevermind, sorry.

**science**

1. How many traits are involved in a monohybrid cross? How many alleles are involved? 2. What prevents the expression of a recessive allele? 3. When gametes form, what happens to the alleles for each trait? Does anyone have any information on this topic?

**Math**

I have a few questions on my homework assignment. I've been sick and I have no idea what I'm doing. Question 1: Assume the hights of high school bball players are normally distributed. For the boys the mean is 74" with a standard deviation of 4.5" while girl ...

**Physics**

swimming duck paddles the water with it's feet once every 1.6s, producing surface waves with this perios. The duck is moving with constant speed in a pond where the speed of the surface waves is 0.32m/s and the crests of the waves are 0.12m apart. A) What is the duck'...

**English**

Well i don't know about a website that will check that, but if you have microsoft word, go to "TOOLS" and click on the "SPELLING AN GRAMMAR" button. It usually gives a relatively thorough chack. Hope this helps

**Physics**

Two identical violin strings, when i tune and stretched with the same tension, have a fundamental frequency of 440Hz. One of the strings is retuned by adjusting the tension. When both strings are pluckes simultaneously, after one has been retuned, 1.5 beats per second are hear...

**Physics**

Thanks alot. I had the right formula, i just didn't have I. Thanks again

**Physics**

The intensity due to a number of indipendent sound sources is the sum of the individual intensities. A) When four quadruplets cry simultaneously, how many decibels greater is the sound intensity level than when a single one cries? B) To increase the sound intensity level again...

**Math - explanation**

I'm not sur if this will help, but to get AB, you subtract A from B and B from C. B(-3x,4y)-A(5x,-1y)=x(-3-5),y(4+1)= AB(-8,5) C(13x,-6y)-B(-3x,4y)=x(13+3),y(-6-4)= BC(16,-10)

**french**

I need help with prosessive adjectives. at least i think thats what its called.

**history**

What was the December 1944 battle in which the Allies fought off the last major offensive by the Germans?

**Math, please please help**

The base length of each square-based prism in the pedestal design is 3cm less than that of the layer immediately below. a) Write an algebraic expression for the total of the top surface areas of the three prisms used to make the pedestal. x x x 2x+5 2x+5 Please help, i am so s...

**Math**

Median means the middle number. So the middle number in this case would be 80 and 90. You can't have two numbers so you find the average of 80 and 90. 80 plus 90 is 170. 170 divided by 2 is 85. So the median in 85.

**Biology**

I am doing a presentation on Designer Babies for school. I have to discuss how Designer Babies will impact society in a bad way. This includes the short and long term effects. I have many long term effects such as: 1. stereotypes 2. "Super Humans" 3. Discrimination a...

**Spanish**

How do you conjuate -ar -er and -ir verb?

**Biology**

Thank you!!!

**Biology**

NO2+SO4=NA2+3

**social studies**

what are central americans mixed wiht erupean called?

**Define word**

An army composed of ordinary citizens rather than professional soldiers

**Geometric formulas**

Contagious diseases can spread very quickly. Supposed five people are ill during the first week of an epidemic and that each person who is ill spreads the disease to four people by the end of the next week. By the end of the tenth week how many people have been affected by the...

**Chemistry**

What is the final product of citric acid combined with sodium hydroxide

**Biology**

annswer is b micrometer

**Child Development**

sorry, last question had a typo.. i need to know the personalities of a child: overcontrolled undercontrolled resilient

**Child Development**

I need to know what an over controlled, under controlled and reilient child's personality is like

**To Kill A MockingBird**

Sorry, I still don't understand. :(

**To Kill A MockingBird**

Is this right? It's ironic how Jem tells Scout that Ms. Caroline's system of teaching is something called the 'Dewy Decimal System, when we all know how Jem is wrong on this. That's all i could think of. o.o

**To Kill A MockingBird**

Hi, this question was assigned to me along with other questions.. but this one got me stuck. CHAPTER 2 1. What satirical points are being made about education through Scout's experiences?(In other words, what points is the author trying to get across to the reader about th...

**American History**

Assess FDR's conduct of American foreign policy after 1935. When and why did he move from isolationism to interventionism in the European war? Why wasn't he more candid with the American people about what he was doing? Do you think he purposely led the US into war? Why...

**Calculus**

Average Value of a Function f(x) =(1)/(X-3)^2 in the interval [0,2]

**math**

which of the following has no faces? a] cube b] sphere c] cone d] pyramid

**History**

what made the Works Progress Administration so important?

**Chem 2**

Sorry my friend Barbie and I are doing are chem h.w. together. We each posted a question and since were using the same computer the last name always stays saved in the page...sorry I forgot to change it. It

**Chem 2**

1.057 grams of a substance with a molar mass of 385.336 g/mol are dissolved in 249.92. Ther temperature for the system changes from 83.83 to 52.38 degrees C during the mixing. What is the DH(heat of solution) for this process in kJ/mol. Assume that th density of water is 1.00g...

**chemistry**

HCl + Mg2 ---> H2 + MgCl2 4HCl + Mg2 = 2H2 + 2MgCl2 4mol 2mol 2.31gr ?gr HCl mole = 2.31/(1.008+35.45)=0.06 mol 4HCl/1H2 0.06mol HCl x (1molH2/4molHCl)= 0.015mol H2 mass of H2 = 0.015 x (2*1.0008) =0.03gram H2 i think that's how it works.. plz check your answer

**SOCIAL STUDIES/ GOVERNMENT**

Please be specific.

**Chemistry**

reaction balanced equation. Al2C3 + O2 ----> CO2 + Al3 therefore 3Al2C3 + 9O2 = 9CO2 + 2Al3 so try to find the mass of CO2 from the equation, then n= m/M

**chemistry**

CO + 2H2 = CH3OH 2mol 1mol ?gr 45gr 45 x 2 = 90 grams hope i got it right for you

**Math**

seem right to me.

**Numerical & Proportional Reasoning**

first: $300US = 300x0.821774= 246.53euro. she spent 100euro, so she had 146.53 euro left going to Japan. then you can change 146.53 euro back to US dollar. 146.53 euro = (146.53/0.821774)=178.31US dollar then change US dollar to Yen, therefore 173.31 US= 173.31 x (110.565)= 19...

**algebraic reasoning**

have your grap on the y-axis represents the height, and the x-axis represents the time. when she goes down, draw a line going down according to the time and the elevation, and the line will go up when she goes up with the time given. for the total time will be 5min down, 5 min...

**Algebra**

-8x + 4y = -12 +8x +8x --- ---- 0 +4y = -12 + 8x divide both sides by 4 (4y)/4 = (-12)/4 +(8x)/4 y = -3 + 2x or y= 2x -3 good luck

**math**

y=mx + 2 means 2 is the y-intercept when x=0, m is the slope, if m>0, the line will go up to the right, (/) if m<0, the line will go down to the right(\) good luck

**Math**

porabola..i think

**Math**

why a (-)x(-)=(+) (-)x(+)= (-)

**physics**

I know that I should find an equation, but which one?

**physics**

A Goodyear blimp typically contains 5400m^3 of helium (He) at an absolute pressure of 1.1*10^5Pa. The temperature of the helium is 280K. What is the mass (in kg)of the helium in the blimp? PLEASE GIVE ME SOME IDEAS TO DO IT!!!THANKS A LOT!!!

**Chemistry**

Can someone help me balance this equation ZnCl2 + (NH4)2S ------- NH4Cl + ZnS

**Math**

1. Explain the advantages and disadvantages of both the substitution method and the elimination method for solving a system. Help please. The only reasons I can think of is because in substitution it might be more difficult cause there's a possibility of working with fract...

**Geometry**

geometric concept is modeled by the beam of a flashlight

**Harding**

Why was harding's administration so scandal ridden? Consider both Harding's personal qualities and the postwar climate. What was the long-term impact on his reputation, the republican party, and American national interests.

**us history**

the explosion of the USS Maine was the main cause for this sentiment. Yellow journalists took the explosion (which was caused by a fire on board) and blamed the spanish.

**Prohibition**

what are some specific consequences of prohibition

**Pre Algebra**

every bay

**chemistry**

a radioactive fission product of nuclear explosions and sccidents is often iodine 131 which becomes distributed in the atmosphere. this falls upon the ground and is absorbed by plants. explain how this radiation could eventually beome concentrated in the human body and cause g...

**chemistry**

im sorry.. i dont even know how to ask. maybe if i knew what i was doing i could ask. but we did a lab about halide ions. we used NaF, CaCl, NaBr, and NaI. we used reagents Ca(NO3)2, AgNO3, NH3(aq), Na2S2O3, and starch + NaOCl. we had to tell if a precipitate formed and the co...

**chemistry**

how do you know which halide salts confirms a presence of F- ions, Cl- ions, Br- ions, and I- ions?

**Algebra 2**

Approximate to the nearest tenth the positive real zeroes of f(x)=x^2+1. I got .6 Solve over the set of complex numbers. x^4-13x^2+36=0 i got -3,-2,2,3 but i don't know if i even did it right. Solve x^2+4x9=0 by completing the square. I don't even know where to begin o...

**Math**

is 3/2 a rational number?

**geography**

What is some Italian cultures?

**chem**

a radioactive fission product of nuclear explosions and sccidents is often iodine 131 which becomes distributed in the atmosphere. this falls upon the ground and is absorbed by plants. explain how this radiation could eventually beome concentrated in the human body and cause g...

**chem**

how do you know which halide salts confirms a presence of F- ions, Cl- ions, Br- ions, and I- ions?

**chemistry lab**

Could someone help me with this? i am tired of it. here is my data from lab: Buffer1: HPO4- weight 3.412g; original pH Buffer 2: HEPES wt: 1.090g original pH 10.08 buffer1: pH of 0.1M: 7.5; pH of 0.01: 7.72; pH of 0.001M: 7.87 buffer2: PH of 0.1M: 7.5 ph of 0.01 M: 7.42 pH of ...

**Social Studies**

Name the documents from which the Framers of the Constitution used ideas.

**AP US History**

I have and essay on why muckrakers were better than roosevelt thought. i have examples of muckrakers. i just need to find out what legislation or action their works promoted. Here is the list of muckrakers... Lincoln Steffens Ida Tarbell Ray Bakers John Spargo Samuel Hopkins A...

**AP US History**

I was thinking New Nationalism as well. This is not a DBQ. It is just a regular essay so my sources are my book and the internet. My book has a paragraph on each one. I have used that to compare and contrast the two but i am having trouble applying the information to the quest...

**AP US History**

Between New Nationlism and New Freedom which is the most realistic response to industrialization? Why?

**AP US History Essay**

Do you think that Teddy Roosevelt's claim that Taft had abandoned his policies was entirely fair? Why or why not? I know it is an opinion question but i need help finding info. Thanks

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