# Questions Asked onFebruary 2, 2012

1. ## physics

A 0.500 ice puck, moving east with a speed of 6.70 , has a head-on collision with a 0.700 puck initially at rest. Assuming a perfectly elastic collision, what will be the speed of the 0.500 object after the collision? What will be the speed of the 0.700

2. ## physics

A person pushes a 17.0 kg lawn mower at constant speed with a force of 74.0 N directed along the handle, which is at an angle of è = 48.0° to the horizontal (b) Calculate the horizontal retarding force on the mower (c) Calculate the normal force exerted

3. ## Chemistry

If a 45.3-g sample of potassium nitrate is dissolved in enough water to make 225 mL of solution, what will be the molarity?

4. ## math

Write an expression from the model below and then simplify the expression. Positive Negative Which equation is modeled on the number line below? (-56)/(-8) = 3- (-4)= 7.1 (Rational Numbers) No Calculators Fill in the chart below. Base of 10 Whole Number or

5. ## Physics

A young woman named Kathy Kool buys a sports car that can accelerate at the rate of 4.77 m/s2. She decides to test the car by dragging with another speedster, Stan Speedy. Both start from rest, but experienced Stan leaves the starting line 1.04 s before

6. ## Math,Ratio

the ratio of the mass of flour in packet A to the mass of of flour in packer B is 1:2.Mrs Anand uses 1/3 of the flour in packet A.What is the new ratio of the mass of folur in packet A to the mass of flour in packet B? pls give ur answer clearly

7. ## Chemestry

Aspirin (C9H8O4) is synthesized by reacting salicylic acid (C7H6O3) with acetic anhydride (C4H6O3). The balanced equation is given below. C7H6O3 + C4H6O3 C9H8O4 + HC2H3O2 (a) What mass of acetic anhydride is needed to completely consume 4.20 102 g

8. ## math,(fraction)

Mr Lim put some red pens and blue pens into a box.The ratio of the number of red pens to the number of blue pens was 3:4. He added 20 red pens into the box and the ratio became 2:1. a. were there more red pens or blue pens in the box at the end? b. how

9. ## Physics

If you fasten lumps of clay on the prongs of a tuning fork, does this change the amount of moving mass? Does it change the stiffness of the pongs? Explain then whether the fork's natural frequency of oscillation is increased or decreased by adding the

10. ## geometry

A lacrosse field measures 110 yards long by 60 yards wide. What would be an appropriate scale to construct a scale drawing of a lacrosse field so it would best fit on a 8.5 by 11 inch sheet of paper?(1 yd = 36 in.)

11. ## Physics

In a 100 m race, Maggie and Judy cross the finish line in a dead heat, both taking 10.6 s. Accelerating uniformly, Maggie took 2.20 s and Judy 2.90 s to attain maximum speed, which they maintained for the rest of the race. What was Maggie's acceleration?

12. ## geometry

Find a translation that has the same effect as the following composition of translations. (x,y)---> (x+7,y-2) followed by (x,y)---> (x-3,y+2).

13. ## maths

solve log2(x+1)-log2x=2

14. ## Shawdow math

A pole is 8 feet long. Its shadow is 6 feet long. If you draw a line from the tip of the pole to the tip of the shadow, how long will the line be?

15. ## math

The IV dose of mannitol is 1.5g/kg, administered as a 15% solution. How many mls of the solution should be administered to a 150lb patient?

16. ## pharmacy calculations

If 500gm of dextrose are dissolved in 600ml of water, with the final volume being 1000ml, what is the percentage strength of the dextrose in the solution?

17. ## Physics

A tortoise can run with a speed of 10.1 cm/s, and a hare can run 19.4 times as fast. In a race, they both start at the same time, but the hare stops to rest for 122 seconds. The tortoise wins by a shell (20.8 cm). How long does the race take? What is the

18. ## history

The Philippine-American war was A) a minor event for americans B) more costly than the spanish american war C) fought in a traditional manner D) never completely resolved E) over even before the spanish american war

19. ## chemistry

In the formation of acid rain, sulfur dioxide reacts with oxygen and water in the air to form sulfuric acid. Write the balanced chemical equation for the reaction. (Type your answer using the format CH4 for CH4.)

20. ## Physics

The figure shows an electron entering a parallel-plate capacitor with a speed of 5.65×106 . The electric field of the capacitor has deflected the electron downward by a distance of 0.618 at the point where the electron exits the capacitor.

42. ## Chem

An aqueous solution containing 21.6 mg of Vasopressin in 100 mL solution produces Osmotic Pressure of 3.70 mmHg at 25°C. Calculate the Molecular Mass of Vasopressin. Here's what I started working on, but then I got stuck. 21.6 mg = 0.0216 g v = 100 mL =

43. ## Geometry

You are given two segments, AB with AB = 4 and CD with CD = 7. You want to construct a new segment, EF with EF = 1. If you can use only congruent-segments construction, explain how you would use AB and CD to construct EF.

44. ## Math

Reid and Maria both play soccer. This season, Reid scored 4 less than twice the number of goals that Maria scored. The difference in the number of goals they scored was 6. How many goals did each of them score?

45. ## Chemistry

The functional groups in MSG are? Carboxylic acid, carboxylate, primary amine Is this right?

46. ## chemistry

How can I group white substances into 2 groups according to their properties&list the properties of each group? Calcium carbonate, citric acid, sucrose, Phenyl salicylate, Potassium iodide,and Sodium chloride Also, which of them dissolves in water and

47. ## physics

A person throws a 2.50 lb stone into the air with an initial upward speed of 15.0 ft/s. Part A- Make a free-body diagram of the forces for this stone after it is free of the person's hand and is traveling upward Part B - Make a free-body diagram of the

48. ## chemistry

A 141-mg sample was placed on a watch glass that weighed 9.203 g. What is the weight if the watch glass and sample in grams?

49. ## physics

The mass of 1 cubic meter of air at sea level is about 1.3kg. Hoe much does it weight in newtons? How much would a stack of 8000 such cubes weigh? If this total weight were all applied to an area of 1m^2, how much pressure would it produce on that surface?

Please help!! Background: Ten years ago, you started working as a clerk for DMD Medical Supplies. Six months ago, Liz Jakowski, the human resources director, promoted you to office manager. You manage two employees: Jack Snyder and Ruth Disselkoen. Your

51. ## math

A reduced fat cookie contains 2g of fat per serving. In order for food to be termed 'reduce fat', it must have at least 20% less fat than the regular item

52. ## Alg 2

Solve the equation. Check for extraneous solutions. 10 ln 100x - 3 = 117 Thank you in advanced

61. ## Physics

A driver in a car traveling at a speed of 56.0 mi/h sees a deer 116 m away on the road. Calculate the minimum constant acceleration that is necessary for the car to stop without hitting the deer (assuming that the deer does not move in the meantime).

62. ## Physics

In a game of American football, a quarterback takes the ball from the line of scrimmage and runs backwards for 10 yards, and then sideways to the left, parallel to the line of scrimmage for 15 yards. At this point, he throws a forward pass at the angle of

63. ## Math

The point L(a,b)in quadrant 1, is rotated 90 degrees about the origin and then reflected across the y-axis. What are the coordinates of the image of L?

64. ## physics

what force is necessary to stop a 20 g bullet moving at 200 m/s as it penetrates a wood at a distance of 4 m?

65. ## Physics

Two cars are traveling along a straight line in the same direction, the lead car at 24.5m/s and the other car at 29.8m/s. At the moment the cars are 41.4m apart, the lead driver applies the brakes, causing her car to have an acceleration of -2.05m/s2. A)

159. ## Math

population decrease from 404 million to 288 million what is percent decrease round to nearest tenth

160. ## I really need help! (Math)

Simplify the expression. Write your answer using only positive exponents. Explain as well. 1. (8x)^3*8^-4 2. 2x^-5*y^-3 3. (4x^4y^-3)^-2 4. 1/(3x)^-2

161. ## English

Hello. I'm very grateful for your help and will appreciate some more. 1)Are the sentences correct: a}The team is conducting an experiment next week. b)The team will be conducting an experiment next week. c)He is giving a lecture at 5 next Monday. d)He will

162. ## algebra

The formula for calculating the amount of money returned for an initial deposit into a bank account or CD (certificate of deposit) is given by nt n r P A „Ê„Ë „É „º„» „¹ ƒ­ 1ƒy A is the amount of the return. P is the principal amount

163. ## Physics

A ball is thrown straight up and rises to a maximum height of 20 m above the ground. At what height is the speed of the ball equal to half of its initial value? Assume that the ball starts at a height of 2.1 m above the ground.

164. ## Math

Given h(r) = (1/r) + 2,find the following. a) h(0) b) h(-1) c) h(-3) d) h(x^2) e) h(x^2 + 1) f) h(x^2) + 1 Thank You

165. ## Chemisty

How many V atoms are there in a 26.3 gram sample of V?

166. ## Astronomy

Later this year Venus will transit the Sun. Use the known diameter and distance of the Sun and Venus to determine how big the Sun will appear to be in degrees and how big Venus will be in degrees during the transit.

167. ## math

You are a manufacturer of a certain item. You’ve calculated that you can sell 80 of these items for $5 each and you can sell 60 of these items for$8 each. Assuming this relationship is linear, write an equation that relates cost to the number of watches

168. ## english

Hello I was wondering if you could correct my homework. Thanks. In each of the following sentences identify the italicized verbal phrase as a participial phrase or gerund phrase. 1. Maxine gets her exercise by dancing for at least three hours a week. -

169. ## math

if 8 cds take up 3 1/4 inches of shelf space, how many cds will fit on 65 inches of shelf space? how do you figure it out?

170. ## writeacher

writeacher i see ms. sue not here today u please help me with story? i write about descriptive paragraph first point of view that i switch on and off from reality like Walter Mitty story. i write about childhood, switching from it to present but if i think

171. ## Chemistry 2

How many cans ( each containing 14.0 oz of propane) would be required to convert 41.7 lbs of ice at -15.0 C to water at 100 C ( the boiling point at standard pressure)

172. ## math

definition of area ??? helpp :/

173. ## math,geometry

Find 3 upper case letters that look the same when rotated 180 degrees. Then, what letter's 90, 180, and 270 degree rotations has this outline? This is also the inside lines formed by the rotation of what letter?

174. ## chemistry

When do you put the suffix (g) after a compound?

175. ## homework

is phoebe hearst the founder important to know as a black history personality? why?

REVISED, let me know what you think :) For the past three months there seems to be an ever-growing problem at our company of DMD Medical Supplies. The quality of work has been poor, the morale of various employees’ has been brought down and the workflow

177. ## english

Select the sentence that has correct pronoun usage. Julie plans to travel this summer with Oscar and me. Julie plans to travel this summer with Oscar and I.

178. ## calculus

Solve for x: 2x=ex+1

179. ## Social Studies

is Northwestern University Center for Talent Development is in rockland????

180. ## English

Hello. I'll really appreciate some help. 1)Do you think it's possible and natural to say "the spokesman aims to explain the situation at a news conference" (meaning - is going to)? 2)Are the sentences correct? If yes, which is more natural: "the party's

181. ## trig

what is the correct answer in proving trigonometric identities if tan theta cos^2 theta + cos^2 theta

182. ## trig

what is the correct answer in proving trigonometric identities if tan theta / sin theta = sec theta

183. ## math

a company will make $150000 profit if it manufactures 1000000 items and$1750000 profit if it manufactures 500000 items. the relationship bewteen the number of drives manuactured and the profit is a linear. write an equation that gives the profit P when n

184. ## Astronomy

Which of the terrestrial planets has the highest surface gravity? (Hint: if you look at ratios, you need not calculate every surface gravity value explicitly.)

185. ## buisness princples

Rose worked 32 hours at $2.75 per hour and made$85 in tips. What were her weekly earnings?

186. ## Physics

A basketball is released from a height of 3m onto a hard surface. What height will the ball rebound to and why ?

187. ## maths

solve 2log small3 x - log small 3 7x=1

188. ## spanish

is " nos gusta" right? Or is it always "nos gustan"?

189. ## chemistry- pH, neutralization

What volume of NaOH was required to have neutralized the HCl. HCl + NaOH --> H2O + NaCl There no other information given in the problem except in later questions like the NaOH had 0.1 M and that there was 50.00 mL of HCl.

190. ## POS110

What are the implications for judicial review on American democracy? Should any branch of government be able to review the actions and legislation of the others? Is this good for democracy or does it concentrate too much power in one branch?

191. ## Movies Notes

my teacher told me to write 15-20 lines about the movie "The Patriot".... i don't know what to write.... can someone please help?? :D

192. ## algebra

Writ an algebric expression for this statement.Ama is N year old now.How old will she be in 10 years.

193. ## english

Select the sentence that is punctuated correctly. The neighbors’ new dog is small, quiet, and shy. The neighbors’ new dog is small quiet and shy. The neighbors’ new dog is, small, quiet and shy.

194. ## Physics

A bloc of 10 kg is put at the top of an inclined plan of 45 degrees (to the left), attached to a spring which has a spring constant of 250 N/m. The coefficient of kinetic friction between the bloc and the surface of the inclined plan is of 0,300. What is

195. ## Algebra

Solve this quadratic eqution: 6a^2 + 13a + 6=0 (^2 means squared...sorry for confusion...)

196. ## Math

Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. x + y = 10 x – y = 2

197. ## calculus

If f(x)=x2+10, find and simplify the following: (a) f(t+8)= (b) f(t5+8)= (c) f(5)= (d) 5f(t)= (e) (f(t))2+8=

198. ## Religion

Can you cite some website where I can find examples of false prophets all over the world. The examples of the prophets must be above the years of 2000

199. ## Physics

A plane is headed east with an air speed of 294.0 m/s. The wind blows southeast at 42.0 m/s. Find the velocity of the plane relative to the earth.

200. ## math

the top will have a piece of marble 20 1/2 by 22 bordered by 3 1/4 inches of wood on all four sides. Give the overall dimension of the table top

201. ## science

Stationary objects are the result of ____ forces.

202. ## Physics

Show that Keplar's third law works for each of the terrestrial planets?

203. ## Finding distances

Person is 1.8 meters tall standing far away at angular height of 5 meters. How do I find how far way they are

204. ## Finding distances

Person is 1.8 meters tall standing far away at angular height of 5 meters. How do I find how far way they are

205. ## Math

Sometimes I get confused with the inequalities. You have $47 to spend on music and movie downloads. Each album down load cost$7 and each movie download costs \$8. Write and graph a linear inequality that represents this situation. Let x represent the

206. ## english

for my switch on and off from reality story about my childhood what title i should have?

207. ## math

Prochlorperazine is available in 10ml multiple dose vial. Eash ml contains 5mg. How many 2mg doses can be taken from this vial?

208. ## spanish

what should go between yo encuentro ____ la amabilidad? yo busco ____ amigo que son amable

209. ## law

A __________ is the person or entity that receives the benefits of the trust. A. beneficiary B. settler C. trustee D. trustor is it A

210. ## numbers

How can i track down a restricted number when they have called me?

i post my son answer i just want to now did he right or no thank you

212. ## math

danielle has 30 jelly beans and 18 green jelly beans. What is the ratio of yellow jelly beans to greens jelly beans

213. ## English

Which sentence is subject verb-agreement? Peer editing academic papers require critical-thinking skills and diplomacy. Peer editing academic papers requires critical-thinking skills and diplomacy. Subject-verb agreement

214. ## math

how may lines of symmetry does a regular pentagon have?

215. ## Lab Math

You have 10.0 ml of a 5.0% NaCl solution. To this you add 5.00ml of a 2.0% NaCl solution. What is the molarity of NaCl in this final mixture? Please help!

216. ## english

Many students anticipate spring break but, Luis looks forward to winter vacation more.” True False

217. ## english

Object pronouns include you, she, he, it, and we. True False

218. ## Help-Algebra

Write a rule for this function: (-2,1), (0,4) Also provide an explanation for how you got your answer. Thanks.

219. ## Physics

A ball is thrown horizontally from the top of a building 21.6 m high. The ball strikes the ground at a point 123 m from the base of the building. Find the x component of its velocity just before it strikes the ground. Find the y component of its velocity

220. ## math

A number line starts with 7 and ends with 9. in between are 7 marks. The letter A ia above the 5th mark. What is the value of A

221. ## statistics

Suzie watched 47 random movies from each nearby video store. Is this sample of the movies at nearby video stores likely to be representative?

222. ## math

a box contains 6 red pencils and 8 black pencils. what fraction of the pencils are red

223. ## social studies

Name the battle fought after the War of 1812?

224. ## calculus

wat is the indefinite integral of dx/x^2? Is it 2 ln /x/ + C?

225. ## algebra

Simplify: 53 x 56

226. ## spanish

When to use saber and conocer?

227. ## speech

What is the diference between formal and technical language in speech? thanks

228. ## science

what is the massof fresh water(p=1.00g/cm^3) in a 72.8L tank?

Explain the 4 variations of 802.11xx, along with approximate speeds and distance.

230. ## calculus

For the function f(x)=5e^x and g(x)=x^5, find the following: (a) f(g(1))= (b) g(f(1))= (c) f(g(x))= (d) g(f(x))= (e) f(t)g(t)=

231. ## math

Find the pattern: 2 2 5 7 0 4 9 5 7 ? 7 2 1 4 6 It's in a rectangle.

232. ## Living Environment

Can you find the latest Living Environment regents ?

233. ## physics

e relative to the ground. The airplane’s speed relative to the air is 77.9 km/h. Answer in units of km/h

234. ## science

Objects in motion are the result of _____ forces.

235. ## English

Writeacher, can you please tell me if I should group the linguistic objectives differently? Being a teacher yourself, could you please tell me if you would include other objectives when considering the study of a scientific subject in a foreign language?

236. ## calculus

If the tangent line to the function f(x)=x+a at x=16 has equation y=mx+2, find a and m . You may use the fact that f'(x)=12x . a= , m=

237. ## English

When making points under sub numbers, i.e. (i), then (ii) etc., is the first letter of that point supposed to be capitalized or in lower letters?

238. ## English

Bobpursely, thank you for helping me! Our project involving three schools is about biodiversity in water. In particular, participating students will have to carry out a chemical and microbiological analyses of water in each school's local area : river

239. ## Science

Bobpursely, thank you for helping me! Our project involving three schools is about biodiversity in water. In particular, participating students will have to carry out a chemical and microbiological analyses of water in each school's local area : river

240. ## social studies

Which president was known as Old Hickory?

241. ## calculus

what is the indefnite integral of (x^4+2x^2-1)/x^2

242. ## Algebra; HELP IMMEDIATELY

I don't understand the topic we're learning in math. /: Provide an explanation, steps on how you figured the answer out, and of course, the answer. Tell whether the abe represents an exponential function. If so, write a rule for the function. x: -2, -1, 0,

243. ## Chemistry

How many moles of gases will be produced if we decompose 10 moles of the reactant in the following chemical equation? 3 C2H8O4Cl4 = 12 HCl (g) + 6 CO2 (g) +6 H2 (g)

244. ## calculus

x only exsists from [0,3.14] therefore what is the parallel tangent lines between f(x)=tanx and g(x)=x^2

245. ## chemistry

what will be the final temperature when equal amounts of ice at-10 degree is added to water at 60 degree c

246. ## Improving your writing Revised

For the past three months there seems to be an ever-growing problem at our company of DMD Medical Supplies: The quality of work has been poor; the morale of various employees has been brought down; and the workflow has been uneven amongst both teams and

If x

248. ## math

3 ft 3in x 7=

249. ## Spanish

no me gusta los personas would gusta be gustan instead?

250. ## math 205

the product of 3 and y is less than or equal to the sum of y and 6

252. ## math

Put these in order from least to greatest: 13/16, 5/8, 3/16, 3/4, 7/8.

253. ## ELECTROMAGNETICS FIELD THEORY

what can be said about the electric flux through any surface when it contains equal number of positive and negative charges?

254. ## math

Collin has 6 marbles. One of the marbles is blue and the rest are yellow. if Collin wants to increase the fraction of his marbles that is blue, which of the following could he do? A. Add a yellow marble B Take away a blue marble C Take away a yellow marble

255. ## math

how many miles did they ride there bike

Write a rule for this function: (-2,1), (0,4) Also provide an explanation for how you got your answer. Thanks.

257. ## Cross-culture psychology 450

good reference on Japanese and united States culture differences

258. ## math

complete the following number sentences so that the answer to each is 1

259. ## algebra

The square root of 9x+81 = x+5 The square root is that funny looking division sign over 9x+81

260. ## Chemisty

How do you convert 237.7 g/mol to moles?

261. ## computer science

You work for a company that requires you to compute the average temperature for 8 A.M. to 6 P.PM. each day. You are to computer program to compute the average temperature.

262. ## trig

what is the correct answer in trigonometric identities. DiViDE ; x^5 + 5x^4 - 2x^3 + 3x^2 + 2x + 1 by x + 3

263. ## MATH geometry

A CRICLE HAS A DIMAETER OF 6FT. WHAT IS ITS CIRCUMFERENCE, ROUND TO THE NEAREST UNIT?

264. ## Calculus

y = square root 256- x squared, from 7 to 16 about x axis

265. ## math

ms fuller has 2 2/6 pies left over from her party. write the number of pies left over as a fraction greater than 1

266. ## English

In point 4 I wanted to be more precise. What kind of texts will they have to write when reporting about their experiments, exchanging information with partner students per email or intepreting data? Please, help me!! 4) write a wide range of different

267. ## Spanish

Me gusta amigas que son estudiosas. OR me gustan amigas que son estudiosas.

268. ## english

the tone of A Simile is a) hopeful. b) cheerful c) tense d) ight my answer is (C)

269. ## Social Studies

I need a picture of Charles B. Brooks the inventor of the street sweeper. I can't find one anywhere; could you help me. I'm doing a project and need a picture of him.

270. ## PreCalculas

Can someone tell me what the graph of r=cos (5/2 x angle) should look like?

271. ## Algebra; Help.

How would you make a table for: y=2*(0.25)^x

272. ## Chem

A gas company wants to manufacture 100,000 Liters of C8H10 gas. How many Liters of the reactants must this company use? C + H2 = C8H10

273. ## maths

solve log (small 2)(x+1)-log (small 2)x=log(small 2) 7

274. ## maths

when a number is written in exact form, can it be a number like root3 for instance.

275. ## law

Which of the following is NOT one of the key participants in a trust? A. Settlor B. Trustee C. Attorney D. Beneficiary is it C

276. ## algebra

what is the value of x in -5-y-1=0 if y=x+1?

277. ## algebra

what is the value of x in -5-y-1=0 if y=x+1?

278. ## health

PONT/O, CRANI/O, FORAMIN/O, _______.

y=6x+9

280. ## trig

what is the correct answer in proving trigonometric identities if tan theta/sin theta = sec theta

281. ## MATH geometry

A CRICLE HAS A DIMAETER OF 6FT. WHAT IS ITS CIRCUMFERENCE, ROUND TO THE NEAREST UNIT?

282. ## math

i do not get this question 24 / x = 4

283. ## Calculus

find f'(x) if f(x)=x^2cos^-1(lnãx)

284. ## Psych-Cognition

What does the concept dualist metaphysics mean?

285. ## math

is 13 feet and 6 inches more than or less than 5 yards?

288. ## math

what is the anwser to 19 c=?pt?c

289. ## math

can someone help me with this problem x-2y=2

N+10N=0

291. ## math

i cant find a proper website to convert 700 mm to km i need help.

292. ## English

Hello. Please help me with one more sentence. Is it possible in standard English to say "The letter will be prepared by 5" or is it "the letter will have been prepared by 5"? Thank you very much.

293. ## math

0≥16 true or false

Thanks Henry

295. ## math

explain how you can find the numbe of feet in 40 yds