Wednesday

November 25, 2015
Total # Posts: 88,286

**Government**

Explain the primary/caucus system for nominating presidential candidates
*November 8, 2015*

**Geography**

How was the US involved in the past in the internal affairs of Cuba and Haiti?
*November 8, 2015*

**Geography**

Primary is concerned with natural rsources and secondary produces raw materials into products which can lead to people moving to these areas
*November 8, 2015*

**Geography**

Why would countries involved in primary and secondary economic growth still have rapidly increasing population?
*November 8, 2015*

**Government**

What usually happens to the presidents incumbent party in the midterm elections?
*November 8, 2015*

**Geography**

more developed countries do not have a population growth problem rather their population is steady or decrasing why
*November 8, 2015*

**Geography**

Why would countries be concerned with their population decreasing? Why would countries be concerned with their population increasing?
*November 8, 2015*

**math**

If an airplane travels at a speed of 450 km/h, how many meters does it travel in 10 seconds?
*November 8, 2015*

**Chemistry (I tried to do more)**

100g / 444.55504g = .225 x 4 = 0.900 Is this right?
*November 8, 2015*

**Chemistry**

How many moles of phosphorus atoms are in 100 grams of P4S10?
*November 8, 2015*

**math**

Let f(x)=(3x-7)/(x+1) What is the range of f? Answer in interval notation. (The domain is (-inf,-1) U (-1,inf)
*November 8, 2015*

**Math**

At a halftime show a matching band marched in formation. The lead drummer started at a point with coordinates (-2,-5) and moved 3 steps up and 1 step right. A. Write a rule to describe the translation B. What were the coordinates of the drummers final position? A: Write a rule...
*November 8, 2015*

**Chemistry**

Which of the following nitrogen-containing compounds would supply the most nitrogen per gram of fertilizer? a. iron azide, Fe(N3)2, MW = 140 g/mol b. sodium azide, NaN3, MW = 65 g/mol c. potassium nitrite, KNO2, MW = 85.1 g/mol d. potassium azide, KN3, MW = 81.1 g/mol e. There...
*November 8, 2015*

**chemistry**

ddf
*November 8, 2015*

**Chemistry (I tried to do more)**

1. 3x10^-23g 2. 2x10^-19g 3. 1x10^-20g 4. 6x10^-23g I got B.
*November 8, 2015*

**Chemistry**

Arrange the following in order of increasing mass: 1. one F atom 2. 1x10^-20 mol of F 3. 1x10^-20g of F 4. one F2 molecule A. 1<2<3<4 B. 1<4<3<2 C. 3<1<2<4 D. 2<1<3<4 E. none of these I'm thinking C
*November 8, 2015*

**Quick English check**

Select the term that is best represented by each statement below. (The words are: admonish, advocate, bias, exposulate, influential, interaction, linguistic, susceptible, temperament, and wary.) 1. "I am a decided preference in favor of a particular side." (...
*November 8, 2015*

**please give me a site or answer!!!!**

I did try google, bunch of dumb As ^ who tf suggest wikipedia Steve needs to stfu goodbye
*November 8, 2015*

**please give me a site or answer!!!!**

description of the population statistics LOCATION in South Carolina already found the age and race just having trouble with the location statistics please help!!!!!!
*November 8, 2015*

**Chemistry (I tried to do more)**

For the balanced chemical formulas are: 3Mg(s) + N2(g) --> Mg3N2(s) Mg2N2(s) + 6H2O --> 3Mg(OH)2(aq) + 2NH3(aq) I'm still struggling with finding the grams of Magnesium needed to start with to prepare 15.0 grams of ammonia. I don't know how to do reverse ...
*November 8, 2015*

**Chemistry**

Ammonia can be produced in a two-step process. First, nitrogen reacts with red-hot magnesium to form magnesium nitride. Then magnesium nitride reacts with water to form magnesium hydroxide and ammonia. How many grams of magnesium would we have to start with to prepare 15.0 ...
*November 8, 2015*

**physics**

two force vectors, f1 18N at 60 degree above the positive axis and F2 6.5N at 45 degree below the positive axis, are applied to a particle at the origin. what third force f3 would make the net force on the particle equal to zero
*November 8, 2015*

**Math Word Problem**

tags given to students and parents = k/2 + 100 tags remaining = k - (k/2+100) = k/2 - 100 tags given to teachers and judges = (3/5)(k/2 - 100) so tags not given out = (2/5)(k/2 - 100) = k/5 - 40 check: assume they had 600 namtags according to my expression, 600/5 - 40 or 80 ...
*November 8, 2015*

**math**

t(4) = 6 ---- a + 3d = 6 t(8) + t(9) = -72 a+7d + a+8d = -72 2a + 15d = -72 double the first equation 2a + 6d = 12 subtract them 9d = -84 d = -84/9 = -28/3
*November 8, 2015*

**probability**

Adefective coin minting machineproducescoinswhoseprobability ofheadsisarandomvariable P with PDF 1+sin(2πp), if p ∈ [0,1],fP (p)= 0, otherwise. Inessence,aspecificcoinproducedby thismachinewillhavea fixedprobability P = p of giving heads, but you do not know ...
*November 8, 2015*

**math**

let the height be x (13)(1/2)x < 65 x < 2(65)/13 x < 10 where 0 < x < 10 , x is a real number of course there would be an infinite number of solutions if you allow decimals or fractions.
*November 8, 2015*

**mpc**

A reasearcher wishes to be 95% confident that her estimate of the proportion of two individuals who travel over sea is within 4% of the true proportion. Find the sample necessary if in a prior study a sample of 200 people showed that 40 traveled overseas last year. if no ...
*November 8, 2015*

**ap physics**

The acceleration due to gravity on the moon has a magnitude of 1.62 m/s. deal with a placekicker kicking a football. Assume that the ball is kicked on the moon instead of on the earth. Find (a) the maximum height H and (b) the range that the ball would attain on the moon.
*November 8, 2015*

**Calculus**

Consider a sphere container with radius R. 1. Suppose it is filled to height h, below halfway, with water. Find the volume of the water. 2. What is the proportion of the sphere's total volume taken up by the water filled as described in problem #1? 3. Suppose it us filled ...
*November 7, 2015*

**Calculus-Read this,Reiny!**

For this part: "for the volume you would have 2π∫(-x+π/2)^2 - (cosx)^2 dx from 0 to 3π/2 " Do you mean the volume when revolves around the x -axis? If so, this would produce a washer, right? If it is a washer then is the formula.. V= pi (and not ...
*November 7, 2015*

**Calculus-Reiny**

Yay! Reiny, you read the description of f(x) correctly. Recall the problem posted earlier: Let f(x)= abs of negative abs of x + pi/2 close abs and g(x)= abs of cosx. the wording might be confusing so here is another description of the equation (the "vertical line" ...
*November 7, 2015*

**Government**

How do today’s national conventions differ from those of 50 years ago?
*November 7, 2015*

**Calculus**

suppose a sphere container of radius R=10 cm is fulled to a height of h=2 cm with a magic potion of density p=12g/mm^3. If the empty container weighs 500 g, how much does it weigh after the potion is poured in?
*November 7, 2015*

**Government**

At what federal level do we have term limits?
*November 7, 2015*

**Calculus**

Let f(x)= abs of negative abs of x + pi/2 close abs and g(x)= abs of cosx. the wording might be confusing so here is another description of the equation (the "vertical line" that I refer to is the line you draw as you draw the absolute value sign...for example "...
*November 7, 2015*

**Organic Chemistry 2**

I'm assuming you would want to remove the HCl from the catalyst.
*November 7, 2015*

**Organic Chemistry 2**

what compound are you using as the reagent?
*November 7, 2015*

**English**

Would you also put commas inside the quotations too
*November 7, 2015*

**English**

Individuality, which leads to becoming a social outcast, is expressed specifically within these two films “Edward Scissorhands” and “Charlie and the Chocolate Factory”. Did I use the right punctuations in this sentence
*November 7, 2015*

**Organic Chemistry**

Identify the following compound from its IR and proton NMR spectra. C5H6O: IR: 3300 (sharp), 2102, 1634 cm–1 NMR: δ 3.10 (1H, d, J = 2 Hz); δ 3.79 (3H, s); δ 4.52 (1H, doublet of doublets, J = 6 Hz and 2 Hz); δ 6.38 (1H, d, J = 6 Hz)
*November 7, 2015*

**general physics question**

Whenever I read my science textbooks, they always say that "electrons were fired" or "stream of electrons were fired to the target" during an experiment my question is, how to they generate a stream of electrons to fire in a line?? sorry if this is a dumb ...
*November 7, 2015*

**math **

June wishes to make a deposit. She has these bills: 41 ones, 7 fives, 3 tens, and 2 twenties. She has 8 nickels, 7 dimes, and 22 quarters. June has checks for $51.25 and $14.75. June wants to receive $50 in cash. What would she enter on the TOTAL line?
*November 7, 2015*

**math **

Brooke received her bank statement on March 7, showing a balance of $2,668.02. The balance shown in her checkbook was $2,256.20. Deposits in transit amounted to $646.53 and there was a service charge of $7.00. Outstanding checks were $276.69, $380.00, $35.00, and $282.68, and ...
*November 7, 2015*

**Calculus**

Evaluate the integral. (Remember to use ln(|u|) where appropriate.) cot^3(3x) dx
*November 7, 2015*

**Chemistry- Dr. Bob**

Question 1 Calculate the wavelength (in nm) of the red light emitted by a neon sign with a frequency of 4.74 x 1014 Hz. A) 704 nm B) 158 nm C) 466 nm D) 633 nm E) 142 nm My answer: D.633 nm Question 2 How many photons are contained in a burst of yellow light (589 nm) from a ...
*November 7, 2015*

**Chemistry- Dr. Bob**

An electron in the n=7 level of the hydrogen atom relaxes to a lower energy level, emitting light of 2166 nm. What is the value of n for the level to which the electron relaxed?
*November 7, 2015*

**Maths**

A closed box in the shape of a cuboid has dimensions x cm, y cm and 5 cm. The volume of the box is 40 cm^3 and the external surface area is 76 cm^2. A) use the information about the volume to find and equation connecting x and y B) use the information about the external ...
*November 7, 2015*

**maths**

A box 48 cm by 48 cm by 36 cm high is made of wood .5 cm thick. If the box has no lid, find the volume of wood used in making the box.
*November 7, 2015*

**Physics**

I'm sorry, but I don't think part a's equation is right, unless I read the equation wrong. The answer key says, part a is 2.7 x 103 m = 278.1 and 1.5 x 104 m = 156. Also, for part b, if I read the equation right, is the answer 14,981.3562 m?
*November 6, 2015*

**Physics**

A ship fires its guns with a speed of 400 m/s at an angle of 35 with the horizontal. a. Find the range and maximum altitude. b. If the ship hits a plane that was 12 km away, how high was the plane flying?
*November 6, 2015*

**Physics**

A person kicks a rock off a cliff horizontally with a speed of 20.0 m/s. It takes 7.0 seconds to hit the ground, find: a. height of the cliff b. final vertical velocity c. horizontal range
*November 6, 2015*

**soil chemistry**

Can someone please help me answering this question regarding soil chemistry? A sandy soil has a CEC = 5 meq/100g and a K saturation = 6%. An alfalfa crop yields 5 ton/ac/yr at 3% K. Calculate initial exchangeable K and estimate final exchangeable K. Where did the additional K ...
*November 6, 2015*

**Physics **

How much time does it take for a car to come to rest if it has an initial speed of 22m/s and slows with a deceleration of 6.1 m/s^2 Will my answer be 3.6 m/s^2
*November 6, 2015*

**Maths**

Solve this simultaneous equation: x+3y=2 and x/3+y/2 =1 Please explain step by step so i understand for future reference. Thankyou x
*November 6, 2015*

**Help please**

The answer is A. -6=-5(2)+4
*November 6, 2015*

**Help please**

A
*November 6, 2015*

**social studies **

i read all about it is this the answer a really need this grade to be good that way i can move on to the next grade.?
*November 6, 2015*

**SS help connections academy**

It ranks among the world’s oldest frozen conflicts, but an “unusual alignment of the stars” is raising new hopes that Cyprus may soon be on the road to reunification, the top diplomat of the divided island’s Turkish Cypriot government said in an interview...
*November 6, 2015*

**SS help connections academy**

Will someone please help me with this question because i need this to be done for a grade and if yall give me the answers this time i will not ask for the answers next time. PLEASE AND THANKS(◠‿◠)
*November 6, 2015*

**SS help connections academy**

please all we need is a few sentences and i have read that before and it's confusing. i get what yall are saying but just please this is for and important class please and thanks.
*November 6, 2015*

**English**

How may a person describe Ernest Hemingway?
*November 6, 2015*

**english4**

How does Macbeth’s tragic flaw lead him to disaster in the final act of The Tragedy of Macbeth by William Shakespeare? His desire for revenge destroys Dunsinane. His ambition starts him on a path that leads to more evil. His greed causes him to betray the king. His ...
*November 6, 2015*

**Physics**

Mr.Notten throws an egg from the top of a school at an initial velocity of 20m/straight upward. The egg is launched 50 m above the ground, and the egg just misses the edge of the roof on its way down? what is maximum height? what is the maximum height of the egg? Determine the...
*November 6, 2015*

**emgineering**

A box with a mass of 5.0 kg is placed on a flat sloping surface elevated at 40o to the horizontal. The coefficient of static friction is 0.76. It is prevented from slipping down the slope by a force applied parallel to the slope. What is the magnitude of this force?
*November 6, 2015*

**Physics**

I don't understand the maximum height part? what is the formula?
*November 6, 2015*

**Physics**

What did you use to find the time for the egg to reach it's maximum height? The answer that you put is kinda confusing.
*November 6, 2015*

**Physics**

A ball is thrown from the top of a building with an initial velocity of 30m/s straight upward, at an initial height of 50m above the ground. The ball just misses the edge of the roof on is way down and hits the ground. Determine: a) time needed for ball to reach max height. B)...
*November 6, 2015*

**CHEMISTRY**

Oxygen gas can be generated by heating KClO3 in the presence of some MnO2. 2KClO3 → 2KCl + 3O2 If all the KClO3 in a mixture containing 1.64 g KClO3 and 0.20 g MnO2 is decomposed, how many liters of O2 gas will be generated at T = 23.0°C and P = 767.9 torr?
*November 6, 2015*

**Math**

a = 9, b = 3, and c = 11. Use the law of Cosines to solve B. My ans: 12.90 degs?
*November 6, 2015*

**chemistry**

The value of Change in heat for the reaction below is -790 KJ. Calculate the enthalpy change accompanying the reaction of .95 g of S. 2S(s) + 3 O2 --> 2 SO3(g)
*November 6, 2015*

**Critical thinking - Reed?**

How is (ii) Acceptable by observation?
*November 5, 2015*

**Calculus**

Evaluate the integral. cot3(4x) dx
*November 5, 2015*

**Chemistry URGENT PLEASE PLEASE PLEASE HELP!**

But how does that show how this behaves in aqueous solution? I guess I thought it would be hydrolysis equations because that determines that the solution is basic/acidic/or neutral?
*November 5, 2015*

**Chemistry URGENT PLEASE PLEASE PLEASE HELP! **

Determine whether the solution is basic, acidic, or neutral. Write net ionic equations to show how it behaves in aqueous solutions. 1) Fe2(SO4)3 I know it is acidic Do I do hydrolysis equations for the net ionic or do I do redox reactions?
*November 5, 2015*

**math**

I have no idea
*November 5, 2015*

**Calculus**

Evaluate using integration by parts, substitution, or both if necessary. the intergral of cos 2x ln(sin 2x) dx My work: w= sin2x dw= 2cos2xdx 1/2 dw= cos2xdx 1/2 integrsl sign ln(w)dw u= lnw u'= 1/w v= w v'=1 1/2 [(lnw)(w)- integral sign (1/w)(w) dw] 1/2 (wlnw-w) Final...
*November 5, 2015*

**Quick English check**

Please check to if see if the vocab words are paired with the right sentences. The sentences are supposed to explain the vocab word. Correct me if I'm wrong. 1. The all circumstantial but it definitely does not look good for the suspect. (SUSCEPTIBLE) 2. I have been ...
*November 5, 2015*

**English**

The lack of exposure to the outdoors resembles social outcast in Tim Burton’s films creating the characters Edward Scissorhands and Willy Wonka to connect differently from others. Individuality is expressed specifically within these two films “Edward Scissorhands&#...
*November 5, 2015*

**Chemistry**

If I add 2ml of .1M of NaOH to a buffer system containing sodium acetate and acetic acid, what will happen to the acetate concentration? Will it increase or decrease?
*November 5, 2015*

**English**

Their isolation towards others expresses that them growing up in a different environment affects their social skills. Would I use affect or effect
*November 5, 2015*

**Math **

Jim runs 50% faster then Bob. In a 1200m race how much of a head start should Bob get to make the race fair? My solution: 50%= half Half of 1200m is 600m So the answer is 600m Am I right
*November 5, 2015*

**English check**

Please check to if see if the vocab words are paired with the right sentences. The sentences are supposed to explain the vocab word. Correct me if I'm wrong. 1. The all circumstantial but it definitely does not look good for the suspect. (SUSCEPTIBLE) 2. I have been ...
*November 5, 2015*

**6th grade Math**

1
*November 5, 2015*

**math**

A student version of the constitution fits a piece of paper that is 8 1/2 by 11 inches. which is the largest scale that can be used so that it fits the paper?
*November 5, 2015*

**math **

Someone runs 3/6 of a distance run and the other person runs 3/8 which one has ran the farthest
*November 5, 2015*

**Quick English check**

They are terms that is best evoked by each of the scenarios
*November 5, 2015*

**Quick English check**

Please check to if see if the capitalized vocab words are in the right spot. Correct me if I'm wrong. 1. The all circumstantial but it definitely does not look good for the suspect. (SUSCEPTIBLE) 2. I have been convinced to participate in the activity even though I think ...
*November 5, 2015*

**Math**

Stuff
*November 5, 2015*

**chemistry**

Precipitation of Ni2+ from a 25 mL aliquot of a solution of unknown concentration yielded 0.338 g of Ni(DMGH)2. Calculate the concentration of the Ni2+ solution
*November 5, 2015*

**Math**

This number has 4 places to the right of the decimal point. It has 2 hundreds, 3 ten thousandths, and 1 tenth. It is between 240 and 242. The thousandths place is one less than the ten thousandths and less than the hundredths. What are six numbers that match this data?
*November 5, 2015*

**Physics **

How much time does it take for a car to come to rest if it has an initial speed of 22m/s and slows with a deceleration of 6.1 m/s^2 Will my answer be 3.6 m/s^2
*November 5, 2015*

**math**

The scale drawing of a rectangular room will be enlarged by a scale factor of 4 to create the actual room. The actual area of the room will be 150 square feet. Which expression finds the area of the scale drawing?
*November 5, 2015*

**ART CHECKING!!! PLEASE CHECK IT!!! :(**

1.C 2.A 3.B 4.D 5.A 6.D 7.C 8.B 9.A 10.D 100% Correct
*November 5, 2015*

**COLLEGE ALGREBRA**

A horse breeder wants to construct a corral next to a horse barn that is L=20 feet long, using the barn as part of one side of the corral as shown in the figure above. The breeder has 320 feet of fencing available.
*November 5, 2015*

**ALGEBRA**

y=(x+5)^2
*November 5, 2015*

**English**

What is this poem about? John Burnside - 'History' It states it based in St Andrews; West Sands September 2001. Is this significant? Please help me to understand this poem Thankyou
*November 5, 2015*

**math**

Milo walks 40 meters in 15 seconds and Mira walks 30 meters in 10 seconds Whose walking is faster
*November 5, 2015*

**math**

Norman wanted to bowl a strike, but to do so he needed to cause his bowling ball (mass of 5 kg) to accelerate at 15 m/s2. How much force does Norman need to exert on his bowling ball to get a strike? Show your work.
*November 4, 2015*

**honors math**

Y=16-5x Y=1/2x-9 Y=3x Y=10 Need to write a parallel equation, perpendicular equation and neither parallel nor perpendicular line for all of them, please help
*November 4, 2015*

**Chemistry**

What do you mean you don't think much of the question? That you think it is easy? I didn't get it because does energy increase mean an exothermic or endothermic reaction because a reaction isn't spontaneous if the reaction is endothermic and the entropy decreases.
*November 4, 2015*