# Questions Asked onApril 11, 2010

1. ## Math

I do not understand how to decide which method would you use to determine whether this proportion is true or false? 19/6=4/27

2. ## English

good title for a paper on traditional and online learning?

3. ## communication

Scholars agree that our basic emotions are happiness and anger. True or False

4. ## Chemistry

Hey guys I was wondering if you guys know the answer to this: Which of the following is NOT true of colligative properties? Colligative properties are... A. independent of the chemical identity of the solute. B. responsible for lowering the vapor pressure

5. ## Ecology

Across various sites within the rainforest of Panama, different species of trees are found with little overlap among sites. Based on this species turnover, Panama’s rainforest is best described as having _______ diversity a) low gamma b) low alpha c) low

what is -3x4*%+11cubed?

When the judge advisories juriors the rule of laws that apply to a case what is this called

What is awarded in a civil trial?

9. ## Chemistry

If 0.433 mol of gaseous CS2 and 1.62 mol of gaseous H2 are reacted according to the balanced equation at 454 K and in a 40.0 L vessel, what partial pressure (atm) of gaseous CH4 is produced? CS2(g) + 4H2(g) -> CH4(g) + 2H2S(g) Molar Mass (g/mol) CS2 76.143

10. ## Calc

lim 81-x/9-square root of x X->81

11. ## chem101

if 23.74ml of 0.01470M NaOH are required to completely neutralize 25.00ml of gastric juice,calculate the concentration of the hydrochloric acid[in g/L]in stomach gastric juice

12. ## chem101

what is the function of an indicator in a titration

13. ## chem101

a 0.1M NaOH solution has been prepared for you.Describe how you would prepare 1 litre of the same solution

14. ## Chemistry

Ok so you have 50mL of sucrose and 977mL of buffer solution - after equilibrium the concentration of sucrose is 0.48M - what is the concentration before hand? How do you do this??

15. ## english

What must we do to truly understand ourselves?-essay. please help me with changes if any are required in the following essay on the above topic. Understanding oneself is an ongoing process, one that occurs as we change – new jobs, marriage, become

16. ## history

what do you think the European Union gives more attention to: promoting democracy in formerly Communist countries, growing the economy of the less-developed countries, or environment?

17. ## English

Understanding oneself is an ongoing process, one that occurs as we change – new jobs, marriage, become parents... The best and easiest way to understand our self is to figure out our likes and dislikes. In the future, this helps us to take decisions of

18. ## chemistry

two solutions are mixed: 100.0 mL HCl(aq) with p 2.20 and 100.0 mL of NaOH}(aq) with pH} 11.20. What is the pH} of the resulting solution?

19. ## chemistry

Two aqueous solutions are mixed: 50.0 mL of 1.60×10−2 M H2SO4 and 50.0 mL of 3.75×10−2 M NaOH. what is the PH of the following solution?

20. ## chemistry

What stoichiometric concentration of the indicated substance is required to obtain an aqueous solution with the pH} value shown below? aniline (C6H5NH2) for PH of 8.90

21. ## social studies

how and why did the global influence of the U.S. and the Soviet Union change between 1946 and the end of 1962?

22. ## social studies

what were the reasons for the atomic weapons in 1945? what impact did the advent of atomic weapons have on the course of American and world history?

23. ## social studies

can someone help me find a website for this timeline, please. create a timeline tracking the following major themes/paradigm shifts in American history from the beginnings of the Cold war in 1945 to the end of the Cold war in the early 1900's

24. ## economics

Explain using a diagram the effect of the sugar price rise on sales of bakery products.

) FIVE JOBS ARE SCHEDULED IN TWO MACHINES IN A MANUFACTURING SHOP. AL FIVE JOBS ARE TO UNDERGO PROCESSING IN BOTH THE MACHINES SEQUENTIALLY PROCESSING TIMES IN MINUTES JOB NO MACHINES1 MACHINE 2 1 4 7 2 6 3 3 2 3 4 7 7 5 8 6 A) IDENTIFY THE BEST SEQUENCE

26. ## Biology

We cut a slice of the target gene from the gel which ran electrophoresis. And then purified the gene from the gel by using Gel-M column, WN buffer and WS buffer. After these steps, we ran another electrophoresis of the purified gene and there was no band

27. ## Chemistry

Which of the following is an exothermic process? ice melting boiling soup water evaporating condensation of water vapor mixing ammonium thiocyanate and barium hydroxide and witnessing a temperature drop I'm torn between ice melting and the last one.

28. ## Chemistry

Which will produce a decrease in entropy? dissolving sodium chloride in water dissolving oxygen in water sublimation of naphthalene is it the third option, sublimation?

29. ## General Math

A company had 66 fewer employees in July 2005 than July 2004. If this represents 5.5 percent of decrease, how many employees did the company have in July 2005?

30. ## Chemistry

which produces the greatest entropy increase? melting the solid heating the solid heating the liquid heating the gas vaporizing the liquid is it melting the solid?

31. ## Management of Information Sy

Assignment: Hardware Replacement Project The IT department is implementing a new CRM solution to its corporate offices. The hardware currently in use is out of date and will not support the CRM application. The hardware must be replaced prior to

32. ## science 7

1o plant based products used weekly. Classify them into plant for food and plant for fiber

33. ## Solve and Graphing Inequalities

x>4, and 2x/6

34. ## physics

If the angular quantities θ,ω,α were specified in terms of degrees rather than radians, how would the kinematics equations for uniformly accelerated rotational motion have to be altered?

35. ## College Algebra

How do you solve L=2.43*9.0^0.3326 to get the wingspan of a pelican in feet?

36. ## social studies

How and why are hate groups protected by the constitution?

37. ## history

Name one event during each decade 1950s, 1960s, 1970s, 1980s, and 1990s, which had an overriding influence on U.S. culture, economy, or governmental policy within that decade.

First Think of a database, then think what could happen if a record had a mistake in it

39. ## chemistry

what happens if you add more borax to a slime receipe

40. ## computers

First think of a database then think what could happen if a record had a mistake in it

41. ## UOP. PSY210

"What is the biomedical approach as well as the psychodynamic, humanistic-existential, behavior, and cognitive approaches to psychotherapy. How do they work with and explain four essential characteristics:" AxiaCollege, UOP PSY210 Class) 1. Systematic

42. ## Chemistry

Calculate the temp at which the reaction (2POCL3(g) -> 2PCl3(g)+O2(g))would become spontaneous. Given: DH= +572kJ and DS= 179 J/K. Would the answer be 298 K? I found DG to be 518.658 kJ, and then plugged in all the values to DG= DH-TDS. Or, should I ignore

43. ## Chemistry

Calculate the temp at which DG for a reaction (with/ DH= -19.9 kJ/mol and DS= -55.5 J/k-mol) will be equal to 0. Is the correct answer -358.56 K?

44. ## statistics

A researcher interested in relationships developed a questionnaire that measures the degree of affection adult men feel for their fathers. She has found that for the general population the distribution is skewed to the right, the mean degree of affection

45. ## Math

Design a rational function with the following characteristics: three real zeros, one of multiplicity 2; y-intercept 1; vertical asymptotes x=-2 and x=3; oblique asymptote y=2x+1.

46. ## chem

The standard solution of FeSCN2+ (prepared by combining 9.00 mL of 0.200 M Fe(NO3)3 w/1.00 mL of 0.0020 M KSCN) has an absorbance of 0.520. If a trial's absorbance is measured to be 0.275 and its initial concentration of SCN– was 0.00060 M, the

47. ## physics

Using gauss's law,calculate the electricfield at a distance r=20cm from a point charge q=4microcoulomb.

48. ## Chemistry

Calculate the pH at the equivalence point of 25.0 mL of a 0.100 M acetic acid, CH3COOH, titrated with a 0.100 M sodium hydroxide, NaOH. Ka of acetic acid is 1x10^-5

49. ## algebra

Kayla wants to buy snack that weigh 1 kilogram How much she'll have to pay if she buy food in bulk. t=total price p=price per kilogram

50. ## Math

The four bases of a baseball diamond form a square 90 feet on a side. The shortstop,S, is in a position that is 50 feet from second bases and forms a 15 degree angle with the base path as shown. Find the distance between the shortstop and first base to the

51. ## Grammar

In the sentence "Yellowstone National Park is one of the largest national parks in the U.S." is the prepositional "of the largest national parks" modifying "one"? If so, is the prep phrase being used as an adjective or adverb. I say "adverb" because "is"

52. ## physics

What is the linear speed of a point: a) on the equator, b) on the Arctic Circle (latitude 66.5 degrees N), c) at a latitude of 45.0 degrees N, due to the Earth's rotation? a relevant equation is v=rw, but I'm not sure how to apply it to the equation

53. ## chemistry

Why will the pH of pure water at 25 degree celcius be equal to 7.0 ?

54. ## chemistry

Why will the pH of pure water at 25 degree celcius be equal to 7.0 ?

55. ## chemistry

Why will the pH of pure water at 25 degree celcius be equal to 7.0 ?

56. ## chemistry

Given a sufficient supply of nitrogen gas, how many moles of ammonia gas will be produced from 10.8 moles of hydrogen gas?

97. ## math

Find vertex, the line of symmetry, and the maximum or minimum value of f(x). f(x)= (1/4) (x+3)^2 +9

98. ## French

Can someone please help me correct this? It's about restaurants and foods at my college. I'd really appreciate some help, thanks! Avant d'aller à l'université, j'ai mangé beaucoup d'aliments à Martinsburg, WV. Quand j'étais jeune, j'ai mangé les

99. ## English

I have to write a poem based off "Stop being a chicken. Be yourself" And I can't think of something to write about. Do you have any ideas?

100. ## Math

Find the most general function f such that f′′(x) = 16 cos 4x .

101. ## AP Chemistry

Consider ammonia, what is the pH of a buffer solution prepared by adding 15.0 g of ammonium chloride to 5.00L of 0.200 M ammonia? ( the K for NH3 is given to me 1.80 x 10 to the power of -5)

102. ## calculus

If the graph of f passes through the point (1, 0) and the slope of the tangent line at(x, f(x)) is 4x − 3, find the value of f(2).

103. ## calculus

A car is travelling at 90mph when its brakes are fully applied, producing a constant deceleration of 22 ft/sec2. Find the distance covered by the car before it comes to a stop. (Remember: 60 mph equals 88 ft/sec.)

104. ## chemistry

these are my three thermochemical equations 2Cu(s)+S(s) give Cu_2S(s) delta H -79.5 KJ S(s)+O_2 give SO_2(g) -297 KJ Cu_2S(s)+2O_2(g) give 2CuO(s)+SO_2(g) how i calculate standard enthalpy of formation in Kj per mol of CuO(s)? please don't give the answer

105. ## calculus

FIND DISCONTINUITES OF F(X)=X+1/X^3-64

106. ## chemistry

Which would produce greater number of moles of product: a certain amount of hydrogen gas reacting with oxygen gas to make water, or the same amount of hydrogen gas reacting with nitrogen gas to make ammonia? Why?

107. ## CJS 250

can any target environment ever be perfectly stable or predictable? why or why not?

108. ## math

questions 21-25 match one definition cmparing denominate numbers with different units is it parallel unit price rate isosceles decimal

143. ## Physics

your friend says that the equivalent (combined) resistance of resistors connected in series is always more than the resistance of the largest resistor. Dou you agree?

144. ## Mat 116 Final

if linear graph shows 1 marked on y and the second mark is directly on -2x then the answer is m= -1/2

145. ## chemistry

how many moles of solute are contained in each solution? 250 mL of a 0.55 M NaNO3 solution? 145 mL of a 4.0 M HNO3 solution? 6.5 L of a 2.5 M HCl solution?

146. ## chemistry

Explaain the effect of a decrease in pressure on the solubility of each type of solute in a liquid solvent: gas and solid?

147. ## History

According to Smedley Butler what the are reasons the US has intervened in countries like CUba, Haiti, Mexico, Nicaragua, the Dominican Republic, and CHina?

148. ## social studies

What were the findings of the Nye Committees?

149. ## Mat 116 Final

x+3y=6 I did it like x + 3y = 6 ____________ x*(-1) +3*(2) ?6 -1 6 -6 Also, (-1,2) intercepts (3,6) Am I correct. If so. then solution for x = -1

150. ## English

How does the the notion of colonization impacts on your post-modern or fluid notions of personal idenity?

151. ## Chemistry II

The equlibrium constant Kc for the reaction: has the value of 4.00 at 500K. If a mixture of 1.00 mol CO and 1.00 mol H2O is allowed to reach equilibrium at this temperature in a 1.00L flask, calculate the equilibrium concentrations of each species in the

152. ## education

what are some interruptive factors in a classroom?

How to write a 200 - 300 paper on the new product development phases on a new cleaning product

what are 2 examples of organisms interacting with abiotic factors in the Mono lake ecosystem?

155. ## crt /205

it taks someone with a really big heart to give to our charity, and you seem like someone who cares more than most. I'd like to know which fallacy that fits under

156. ## Chemistry

The molecules water (H2O) and methane (CH4) have similar masses, but methane changes from a gas to liquid at -161 degrees C. Water becomes a gas at 100 degrees C. what could account for the difference?

157. ## Mat 116 Final

Is it true when the problem says solve x= then it is one number, or fraction. The test does say below where it is looking for an answer will say type integer, or fraction. Then I get myself confused when it says 7x = -56 I figured this is dividing -56 by 7

158. ## Algebra II

I'm trying to factor this and I just can't figure it out. Help? r^4 s^4 - 81

159. ## Mat 116

Solve using multiple principle. 7x=-56 The solution x= -8 or x= 7(-8)= -56

160. ## Chemistry

why should heating a content containing Zn and HCl be heated in fume hood.

161. ## Global History

Turning point of world war 2 and the causes of world war 2.

162. ## algebra

how to identify property or rule used in (15+23)+7=15+(23+7)

163. ## social studies

How do teams determine when a paper is good enough?

164. ## social studies

How should difficult issues like plagiarism be addressed-and why would these techniques be appropriate?

165. ## math

Solvefor y: x2 = a2 + b2 − 2aby

166. ## chemistry

calculate [h3o] in solutions. 0.040 of HCl and 0.080 HOCl. 2. calculate OH for the solutions of 0.0063 ba (OH)2 and 0.0110 of BaCl2

167. ## grammar

what does an simple predicate mean

168. ## Chemistry

Compare the properties of elements and compounds. Give two examples of each, including one example that exists in the human body. Explain the atomic nature of one element and one compound found in human body.

0.5x+1

170. ## Algebra

a. The sales representative informs you that there are 56 houses for sale with two floor plans still available. Use x to represent floor plan one and y to represent floor plan two. Write an equation that illustrates the situation

171. ## Algebra 1

x+9y=8 (1) x=3-9y (2) x (3-9y)+9=8 3x -9y +9y=8 3x = 8 x= 2.6 Is this correct?

172. ## physics

The force produced by Earth's gravity on a 70 kg man standing on the moon is more than 0.5 N True or False?

173. ## physics

A merry go round has a radius of 3.5 meters. How far does a child standing at the edge travel (path length) if the wheel is rotated 13.0 radians?

174. ## social studies

If -then clauses If an air mass originates over an ocean.... if an air mass originates over an continent... If a large body of water is cooler than the land next to it... If a large body of water is warmer than the land next to it...

175. ## History

I don't understand why the US's aid to China during the Chinese Civil War was considered to be wasted. Why would that be?

176. ## English

I am still working on this poem. And I'd like to know ur opinion about it. Its a magic box poem. The magic box I will put in the box Hugs and kisses from my family The daylight brought from the sun and My parent’s blessings I will put in the box The

177. ## Chemistry

Is there an equation used to fond remaining pressure When CS2 at partial pressure 1930 torr reacts with H2 at partial pressure 8650 torr at constant volume and constant temperature according to the balanced equation, determine the partial pressure (atm) of

178. ## Literacy

Find three writing assignments and evaluate them based on the Six Trait Writing Rubric

179. ## Chemistry

Is there an equation used to fond remaining pressure When CS2 at partial pressure 1930 torr reacts with H2 at partial pressure 8650 torr at constant volume and constant temperature according to the balanced equation, determine the partial pressure (atm) of

180. ## ALLENDALE HIGH

WHAT IS A PRONOUN

181. ## HUM/205

I need help with an exhibit about early Chinese and Japanese civilizations

209. ## Grammar

What is the simple subject of this sentence "Behind the curtains, Devon was hiding from his sisters"

210. ## math

A counterclockwise quarter-turn Q about the origin is applied to the point (x, y). What are the coordinates of the image point? Answer in the form Q(x, y) = (ax + by, cx + dy).

211. ## geometry

The perimeter of a triangle, its area, and the radius of the circle inscribed in the triangle are related in an interesting way. Prove that the radius of the circle times the perimeter of the triangle equals twice the area of the triangle.

212. ## math

Given a vector u, the familiar absolute-value notation |u| is often used for its magnitude. Thus the expressions u•u and |u|2 both mean the same thing. What exactly do they mean?

213. ## math

Attendance records at a school show the number of days each student was absent during the year. The days absent for each student were as follows: 8 2 4 3 2 7 6 0 9 3 3 4 2 4 6 Create a dot plot for this data

214. ## vector

For any two numbers a and b, the product of a−b times itself is equal to a2−2ab+b2. Does this familiar algebraic result hold for dot products of a vector u − v with itself? In other words, is it true that (u − v) • (u − v) =

215. ## geometry

A triangle has a 56-degree angle, formed by a 10-inch side and an x-inch side. Given that the area of the triangle is 18 square inches, find x.

what's lists of Indian possession?

217. ## Algerbra

imagine you are at a gas station filling your tank with gas. the function c(g) represents the cost c of filling the gas tank with g gallons. given the equation c(g)=3.03(g) A. what does the number 3.03 represent B.find c(2) C.Find C(9)

218. ## algebra

(6a^3bc^5)(-3a^4b^2c^3) simplify

219. ## algebra

Give the equation of the circle with center at (0, 2) and radius = 5

220. ## Travel and Tourism - NYC and Tokyo

What can local and national governments do to assist the tourism industry in both cities? I need some suggestions.

222. ## math

T he weights (in pounds) of a group of high school students are listed below in a stem-and-leaf plot.

223. ## Physics

Dolphins of the open ocean are classified as Type II Odontocetes (toothed whales). These animals use ultrasonic "clicks" with a frequency of about 54.9 kHz to navigate and find prey. a. Suppose a dolphin sends out a series of high-pitched clicks that are

224. ## physics

A father pulls his young daughter on a sled with a constant velocity on a level surface through a distance of 10 m, as illustrated below. If the total mass of the sled and the girl is 35 kg and the coefficient of kinetic friction between the sled runners

225. ## Mat 116

what is the domain of p? p(x)=x²-2+7 I do not know how to do this problem. Please help!

3+6x

227. ## calc

Consider a function f : {R}^2 \to {R}^2 for which f(4, -4) = (3, 3) and f{D}f(4, -4) = (5 4) (-3 0)

228. ## mat/116 week 9 final exam

what is the like term of 11c+4d-9c-7d=

229. ## The Heart

What is the relationship between fitness level and recovery HR after sub-maximal exercise? I was thinking the more fit you are, the faster your HR will drop back to what it is when you're resting. If you're unfit, it'll take longer for that HR to go down

230. ## algebra 1

(1,3) and (-2,-4) is m= 1/2

(-1,1),y=x-4

232. ## University calculus

if g(x)=the integral sign (with sin(x^2) on top and 10 at bottom) (1+t) dt, find g'(sqr root pie/2)

233. ## Finance

What's the net present value (NPV) of this replacement project? The old equipment has a book value of $200,000 (year 0) and a current salvage value of$300,000 (year 0). It is being depreciated on a straight-line basis. It has four more years of

234. ## managerial economics

A firm uses a single plant with costs C= 160 +16Q +.1Q2 and faces the price equation P= 96 – .4Q. a) Find the firm’s profit-maximizing price and quantity. What is the profit? b) The firm’s production manager claims that the firm’s average cost of

What is the net present value (NPV) of this replacement project? The old equipment has a book value of $200,000 (year 0) and a current salvage value of$300,000 (year 0). It is being depreciated on a straight-line basis. It has four more years of

236. ## Calculus

"Evaluate the following indefinite integrals: "S" (3x^2 -2)/(x^3 - 2x + 1)^3 dx" We're practicing the substitution rule, and I know how to do it, but I don't know what/how to substitute in this question. btw: "S" is the integral sign.

237. ## math

A gardener measures the tallest of his prize-winning sunflowers and finds that the height is 60 in. The sunflower was 52 in. tall the last time the gardener measured it.

238. ## geometry

if two cones are similar and the ratio between the lengths of the radii is 7:3, what is the ratio of their surface areas

239. ## geometry

if two cones are similar and the ratio between the lengths of the radii is 7:3, what is the ratio of their surface areas

240. ## geometry

if two cones are similar and the ratio between the lenghts of the radii is 7:3, what is the ratio of their surface areas

241. ## Precalculus

NEED HELP!! Find all numbers t such that cos^-1 t = sin^-1 t.

242. ## physics

In the frictionless apparatus m1=1.7kg What is m2 if both masses are at rest

243. ## physics

How fast does water flow from a hole at the bottom of a very wide, 3.7 m deep storage tank filled with water? Ignore viscosity.

244. ## ETH

is it difficult to accurately measure prejudice?

245. ## Chemistry

Calculate the average translational kinetic energy (kJ/molecule) for a molecule of NH3 at 431 K, assuming it is behaving as an ideal gas. I understand how to figure out the kJ/mole, but I don't understand how to get the kJ/molecule that this question is

246. ## Chemistry

What is the pH of a solution in which 25 mL of .10 M NaOH is added to 15 mL of .10 M HCl? I have calculated the amount of moles of each, but I'm not really sure where to go from there. Thanks!

248. ## Trignometry pls help

1. The radius of the circumscribed circle of the triangle ABC is 15 cm. Given that B is a 49-degree angle, find the length of side AC. 2. The radius of the circumscribed circle of the triangle ABC is r cm. Given that B is a â-degree angle, find the length

249. ## physics

what is the most important element for creating a magnetic field. and why? Moving charges..... right?

250. ## Trig

Find all solutions w between 0 and 360, inclusive: (a) cosw = cos(−340) (b) cosw = sin20 (c) sinw = cos(−10) (d) sinw < − 1 2 (e) 1 < tanw

251. ## Chemistry

If you add 2.50 mL of .150 M HCl to 100 mL of a buffer consisting of .100 M CH_3COOH and .200 M CH_3COONa, what will be the change in pH? (Ka of CH_3COOH is 1.7 x 10^-5).

252. ## algebra

0.7x+2 less < than 1.5x-5 Thanks for the help

How did U.S. manufacturers become vulnerable to offshore outsourcing

254. ## matt/116

two angles are complementary. The sum of the measure of the first and the one-fourth of the second angle is 62.25 degrees find the measures of the angle.

255. ## physics

In the frictionless apparatus m1=1.7kg a)What is m2 if both masses are at rest? b) How about if both masses are moving at constant velocity?

256. ## algebra

7r-3s=18 3r+7s=16 Solve by the elimination method, please.

257. ## Math

Devon’s bike has wheels that are 27 inches in diameter. After the front wheel picks up a tack, Devon rolls another 100 feet and stops. How far above the ground is the tack?