# Questions Asked onSeptember 20, 2010

126. ## macroeconomics

what happens to the net public debt if the federal government operates next year with a : budget deficit, balanced budget, budget surplus

127. ## statistics

A coin is weighted in such a way that a tail is twice as likely to occur as a head. If the coin is tossed twice, what is the probability of obtaining two tails?

128. ## math

find the linear function f(x)=mx +b, whose graph has the given slope and y-intercept slope is -13/9 and y-intercept is (0.-6) the linear function is f(x)=

129. ## chemistry

Calculate the amount of heat required to raise the temperature of a 25 sample of water from 7 to 25.

130. ## Chemistry

The Specific Gravity of kerosene is 0.786. What is the volume occupied by 7.75kg of kerosene? Is it 7.75/0.786?

131. ## Chemistry

I like to write and name chemical formulas, but some formulas just confused me really bad, so I would like help getting back on track. I don't understand this. NiPO4: I know that Ni = Nickel, and PO4 = Phosphate, but how come there isn't the -3 charge on

132. ## Physics

A particle has ⃗r(0) = (4 m)j and ⃗v(0) = (2 m/s)i. If its acceleration is constant and given by ⃗a = −(2 m/s2) (i +j), at what time t does the particle first cross the x axis? Answer in units of s. part 2. At what time t is the particle moving

133. ## physics

A 5.10 kg box is sliding across the horizontal floor of an elevator. The coefficient of kinetic friction between the box and the floor is 0.450. Determine the kinetic frictional force that acts on the box for each of the following cases. (a) The elevator

134. ## Accounting

It is stand accounting procedures, or GAAP, to make an adjusting entry to remove the current year’s principle from the long-term liabilities. This entry reduces the long-term liabilities and increases the current liabilities. You are the bookkeeper for

135. ## chemistry-mostly for bobpursley- I have a question

ok i made a post with this question earlier: A carbon nucleus has six protons and six neutrons. How many electrons would it take to equal the mass of a carbon nucleus? u responded with this formula: 6*massproton+6*masscarbon=n*masselectron look up the

136. ## medicine

A cat on IV fluids must receive 30ml/hr of saline. The drip set provides 60gtt/ml. How many gtt/sec should the drip be?

calculate each power of 10 what pattern do you see in part (a) explain hoe your pattern can show that 10 to the pwoer of 0=1

138. ## Physics

A simple camera telephoto lens consists of two lenses. The objective lens has a focal length f1 = +41.7 cm. Precisely 36.1 cm behind this lens is a concave lens with a focal length f2 = -13.9 cm. The object to be photographed is 4.06 m in front of the

Find the real solutions of each equation. 1) 1 / (x+6)^2 = 1 / (x+6) + 12 2) 8x^2/3 - 39x^1/3 - 5 = 0 I have no idea how to do these. Please help!!! Thank you!

140. ## marketing

is the process of naming broad product-markets and then segmenting these broad product-markets in order to select target markets and develop suitable marketing mixes. A. Mass marketing B. Market segmentation C. Diversification D. Market positioning

141. ## Calculus

Determine how much time, to the nearest tenth of a year, is required for an investment to triple in value if interest is earned at the rate of 3.5% compounded continuously. (use A=Pe^rt

analyze the responses to the spread of buddhism in china

143. ## Math

A basketball player hits 90% of his shots. What is the probability tat he makes the next 3 shots?

144. ## algebra 2

compare each pair of numbers. Use < or > o.45,0.405

145. ## english

How do i make this a stronger thesis statement? There are many circumstances that effect the actions of fictional characters.

146. ## math

Pretend the program in Senegal had been reducing infant mortality at a rate of 11 % per year. How long would it take for infant mortality to be reduced by 35 %? How do I go about solving this problem?

147. ## statistics

P(A)=.37, P(B)=.19, P(A and B)=.13. What is the probability that A doesn't occur or B does?

148. ## Physics

A monkey is chained to a stake in the ground. The stake is 2.81 m from a vertical pole, and the chain is 3.61 m long. How high can the monkey climb up the pole?

149. ## Chemistry

This is not a homework question, I'm just asking this casually. Is the metal Silver a good conductor of electricity?

150. ## Science

How many neutrons in actinium?

Helium is monatomic with a relative atomic mass of 4. calculate (i) the density of helium gas at a temperature of 0 degrees Celsius and a pressure of 101kPa and (ii) the rms speed of the helium atoms under these conditions

152. ## geometry

If three time the supplement of an < is subtracted from seven times the comp. of the

153. ## math

Maximize P = 4x + 20y subject to these constraints: 2x + 15y ≤ 700 5x + 10y ≤ 1150 5x + 5y ≤ 1000 4x + 15y ≤ 980 x ≥ 0, y ≥ 0 Maximum value for P = ?. This value of P occurs when x = ? and y = ? If u1, u2, u3, and u4 represent the slack

154. ## physics

two notes wich have frequency ratio 2:1 are said to be separated by an octave.A frequency wich is separated by an octave from middle C(256Hz) is?

155. ## world history

Compare and contrast China and India ca. 1400. What are some important political differences? Why do you think those differences might matter in the way world history develops in the period from 1500 to 1800?

156. ## world history

Why does Marks begin with China? What was happening there in the 1400s that matters to the course of world history?

157. ## mgmt 303

some people have claimed that the increasing technological sophistication required by many of today's corporations has led to a return to job specialization.

158. ## SCIENCE!!

a. Find the speed required to throw a ball straight up and have it return 6 seconds later. Neglect air resistance. b. How high does the ball go? Please Help!! Thanks!! :)

159. ## English

How could I compare the passage from "from Dust Tracks on a Road" and "from The Autobiography"? Please give an idea.

160. ## Calculus

The manager of a weekend flea market knows from past experience that if he charges x dollars for a rental space at the market, then the number y of spaces he can rent is given by the equation y= 200-4x. Is this correct? Slope represents the relationship

A rational number is ____ a real number. a. always b. never c. sometimes its always ???????

163. ## Math

Which pattern do you see in the multiples of 9? and Which pattern do you see in the multiples of 1?

164. ## physics

A brick is thrown upward from the top of a building at an angle of 25° to the horizontal and with an initial speed of 17 m/s. If the brick is in flight for 2.5 s, how tall is the building?

165. ## math 8

what is the meaning of order if y=x is to the order of 1 then what is the order for y=sin x ANSWER: is that also the order of one please explain.

166. ## science

what is the definition of a compound machine?

167. ## math

Fill in the correct math operations only once (+, -, *, /) 8_2_1_3_4=5

168. ## ethics

What is virtue and how do we acquire it? this is according to aristotle

169. ## math

Maximize P = 4x + 20y subject to these constraints: 2x + 15y ≤ 700 5x + 10y ≤ 1150 5x + 5y ≤ 1000 4x + 15y ≤ 980 x ≥ 0, y ≥ 0 Maximum value for P = ?. This value of P occurs when x = ? and y = ? If u1, u2, u3, and u4 represent the slack

170. ## Chemistry - v/v versus w/w

Thanks a lot:) So just to confirm: normally for any chemical bought from manufacturer, if it is not stated, the % usually means v/v? Seems like for conc sulphuric acid, when it is stated 97% sulphuric acid, it means 97% w/w sulphuric acid? Thank you very

171. ## Physics

A 6.0 kg block,starting from rest, slides down a frictionless incline of length 2.0 m. When it arrives at the bottom of the incline its speed is vf. At what distance from the top of the incline is the speed of the block .5 vf

172. ## Physics

Part a of the drawing shows a bucket of water suspended from the pulley of a well; the tension in the rope is 92.5 N. Part b shows the same bucket of water being pulled up from the well at a constant velocity. What is the tension in the rope in part b?

173. ## english

what is the complete verb phrase? and helping verb? Who has been doing research on early polar flights? Is it has research? I can not include any of the words that may separate the parts of the verb phrase

7-x/3=5

175. ## English

What is the difference between hearing and listening?

2(5-3x)

177. ## chemistry

Which of the following statements about protons are false? (Select all that apply.) 1)Protons have twice the mass of neutrons. 2)Protons have a much greater mass than electrons. 3)Protons have about the same mass as neutrons. 4)Some atoms do not have any

178. ## Physics

A brass lid screws tightly onto a glass jar at 20 oC. To help open the jar, it can be placed into a bath of hot water. After this treatment, the temperature of the lid and the jar are both 60 oC. The inside diameter of the lid is 8.0 cm at 20 oC. Find the

179. ## college physics

A 5.10 kg box is sliding across the horizontal floor of an elevator. The coefficient of kinetic friction between the box and the floor is 0.450. Determine the kinetic frictional force that acts on the box for each of the following cases. (a) The elevator

180. ## physics

A box is sliding down a ramp sloping 25° above the horizontal. The coefficient of kinetic friction is 0.15. What is the acceleration? The answer is 2.8 m/s^2. How can this be solved with out mass?

181. ## macroeconomics

match each of the rationales for finacial intermediation listed below with at least one of the following: insurance company, pension fund, savings bank. a. adverse selection b. moral hazard c. lower managment cost generated by larger scale

182. ## chemistry problem

A carbon nucleus has six protons and six neutrons. How many electrons would it take to equal the mass of a carbon nucleus? ok. i think theres some type of formula or some trick to figure this one out but i don't know what it is. If you guys know how to

183. ## physics

How much force must a weight lifter apply to a 97 kg barbell to accelerate it upward from rest a distance of 85cm in 3.0 secs? Step by step instructions if possible please. I really need help.

184. ## geometry

the measure of angle xyz is 140degree what is the value of x (2x+6)degree

185. ## Chemistry

What is the difference between a group and a period in the periodic table? A: The difference between a group and a period in the periodic table is that a group is each column/family with similar properties and a period is each row going up from charges 1+.

186. ## Math

BW made c cookies to divide evenly amoung O,TS,SB,and RD and BW himself. Write an algebraic expression that represents the number of cookies each person will receive. I have no clue...sorry those were intitals the problem characters had long names.

187. ## algebra

write an equation through (2,-1) are parallel to the line y=1/2x+1

188. ## algebra

-2(x-2)=2[x-4(x-2)+x]

189. ## college

what will be the final temperature if a 5.00-g block of aluminum at 37.0 celsius gives off 25.0 J of heat to its surroundings?

190. ## chemistry

How many grams of NH3 will have the same number of molecules as 15.0 grams of C6H6?

191. ## Chemistry problem

I refer to my earlier post on v/v versus w/w. I would be very grateful for any advice provided. For 95% ethanol purchased from manufacturer, we normally take it as 95%v/v. For 98% sulphuric acid, it seems like it is normally 98% w/w. I have also seen a

192. ## physics

A beam of negligible mass of length 3 m is suspended by a string attached to a wall such that the angle between beam and string is 30 degree, and the beam is held horizontal with a sky weight. Find the tension in the string? Find the compression force on

193. ## calculus

Using a graphing utility, graph and approximate the zeros and their multiplicity. A.x=0,multiplicity 2;x=7,multiplicity 3 B. x=0,multiplicity 2; x=7,multiplicity 1; x=-7, multiplicity 2 C. x=0,multiplicity 3;x=0,multiplicity 2 D.x=0,multiplicity 3;x=-7,

194. ## ECONOMICS

When does price remain below the equilibrium ? When does price remain above the equilibrium ? What is economics cost and law of increasing cost ?

195. ## algebra

-5+10y=neg30 what is the anser?

196. ## algebra

Solve the given equation for n. 12(n+9)=3(36+4n)

197. ## math

Is this a star polygon, a polygon, or other, how many sides does it have? {9/3}

198. ## Linear Programming

Maximize P = 16x + 80y subject to these constraints: 2x + 20y ≤ 430 4x + 70y ≤ 1400 8x + 30y ≤ 980 10x + 10y ≤ 1000 4x + 30y ≤ 700 x ≥ 0, y ≥ 0 Maximum value for P = ?. This value of P occurs when x = ? and y = ? If u1, u2, u3, u4, and u5

199. ## SCIENCE!!

a. When a ball is thrown straight up, by how much does the speed decrease each second? b. After the ball reaches the top and begins its return back down, by how much does its speed increase each second? c. Compare the times going up and coming down. Please

200. ## physics

We use many chemicals in our daily lives. How can these chemicals affect you and what can you do to minimize these effects? The chemical industry is enormous in the industrialized world. How has society benefitted from advances in the chemical industry?

201. ## physics

a pendulum of length L=9.8m hangs in equilibrium and is then given velocity v=0.2m/s at its lowest point.What is the magnitude of the subsequent oscillation?

202. ## Science

What are 2 processess that change earth slowly? The ___1____, which includes the__2____ and part of the _____3_____, is divided into plates that carry all of the Earth's lands and oceans. These plates float on a ___4____ layer of rock in the upper mantle

203. ## Physics - Inelastic Collisions

The speed of a pitched baseball is 46.0m/s. You want to know how fast is your school's star baseball pitcher could throw. You make a pendulum with a rope and a small box lined with a thick layer of soft clay, so that the baseball would stick to the inside

204. ## math

solve the equation and check -(9x-4)-(2x-6)+7=-8(x-9)-(6x+2)+4

how to work out the percentage of a triangle that is shaded by a circle?? (circle is at a tangent to all 3 sided if that helps) thanks

212. ## Math

Use the simplex method to find the maximum value of P = 3x + 3y subject to these constraints: 3x + 2y ≤ 360 x - y ≤ 60 y ≤ 120 x ≥ 0, y ≥ 0 What is the maximum value of P? What is the corner point which maximizes the profit? x = ? y = ?

213. ## math

x=(-5.15-5.89i)+(30/(-5.15-5.89i)) i is the square root of (-1) the answer sholud equal 10.3 x=10.3 but could you show me how , i am having problem to figure it out. thank you.

214. ## Astrology / Physics

How do we calculate the radial velocity after the recession velocity is known?

215. ## History

what are some similarities and differences between these three mediums: propaganda, advertising and bias? What tricks do you feel are frequently used in propaganda? Why?

216. ## US History

Could Patriotism and propaganda posters be considered two different effects of US in WWI? At first I thought sure, but than the posters did cause patriotism so...

217. ## economics

Help please You are a utilitarian social planner and have a very limited number of vaccines to a new and potentially deadly virus. How do you allocate them? Do you: (A) give them to specific groups, such as high-risk populations, or (B) sell them to the

218. ## math

The sum of my two digits is 13. I am not divisible by 2. List all possible numbers I could be.

219. ## Biology

Covalent bonds between nucleotides in DNA are found between: A) a phosphate group and a nitrogenous base. B) a sugar and a nitrogenous base. C) nitrogenous bases. D) phosphate groups. E) a sugar and a phosphate group. Thank you.

A box is sliding up an incline that makes an angle of 16.0° with respect to the horizontal. The coefficient of kinetic friction between the box and the surface of the incline is 0.180. The initial speed of the box at the bottom of the incline is 1.30m/s.

221. ## SCIENCE!!

a. When a ball is thrown straight up, by how much does the speed decrease each second? b. After the ball reaches the top and begins its return back down, by how much does its speed increase each second? c. Compare the times going up and coming down. Please

222. ## statistics

P(A)=.37, P(B)=.19, P(A and B)=.13. What is the probability that A doesn't occur or B does?

What is subject and verb of this sentence...The rest of story was never told.

224. ## physics

consider a simple harmonic oscillation with m=0.5kg,k=10N/m and amplitude A=3cm,if the oscillation is released from rest at x=A when the clock is set to t=0,determine the position of the oscillation at t=2s

225. ## science

a nickel is about 2 millimeters thick,or 2/1,000 of a metter. how many nanometers is?

226. ## History

When US entered WWI, what century would that be? 20th century?

227. ## ECONOMICS

AS PRICE INCREASES WHY WOULD QUANTITY DEMAND ALSO INCREASE ? SHOULDNT QUANTITY DEMAND INCREASE WHEN PRICE DECREASES ?

228. ## poetry

What is the theme presented in the poem: "You are reading this too fast," by Ken Norris?

229. ## science

we have done experiment in school and for homework we must write chemical reactions that have happend during the experiment. the experiment was like this : first we took an unknown substance than we have put some CuO , we mixed that two substances together

230. ## college physics

A swimmer is heading straight for the other shore of a river with a velocity of vs=0.7 m/s relative to the water, but is carried away by the current, which has a velocity of vr=0.3 m/s. It takes her 20.3 s to get across. How far downstream does she end up?

231. ## sorting

sorting the same set in different ways

232. ## math

Adam is 3 times as old as Cynthia and Fred is 16 years younger than Adam. One year ago, Adam's age was twice the sum of Cynthia's and Fred's age. Find their present age.

233. ## math

x.y=30 and x+y=10.3, I end up with x=(21.83+60.66i)/(-5.15-5.89i). i is the square root of (-1). could you please show me how this equation will = 10.3 I am having problem to figure it out. thank you.

234. ## Math

Maximize P = 16x + 80y subject to these constraints: 2x + 20y ≤ 430 4x + 70y ≤ 1400 8x + 30y ≤ 980 10x + 10y ≤ 1000 4x + 30y ≤ 700 x ≥ 0, y ≥ 0 Maximum value for P = ?. This value of P occurs when x = ? and y = ? If u1, u2, u3, u4, and u5

235. ## english

What is the theme of the poem A Kite is a Victim. What are juxtapositions in this poem

236. ## SCIENCE!!!!!!!!!!

a. Find the speed required to throw a ball straight up and have it return 6 seconds later. Neglect air resistance. b. How high does the ball go? Please Help!! Thanks!! :)

237. ## MATH:-)¤

Jay-Z's office contains 12 file cabinets. Three cabinets have 4 drawers,all the other cabinets have 5 drawers. Jay-Z's assisant is typing new labels for each file cabinet drawer. How many labels will she need?

350. ## word search puzzle

moving about in a clumsy, noisy way

351. ## math

i'm trying to help my neice out, and i'm a little rusty here.... R(r1+r2)=r1r2

352. ## Physics

A frog with a mass of .14kg jumps by extending its legs 13.5cm, starting from rest in a time period of 112ms. What is the acceleration of the frog while it jumps?

353. ## Aberdeen

A model rocket is launched straight upward with an initial speed of 40.0 m/s. It accelerates with a constant upward acceleration of 2.50 m/s2 until its engines stop at an altitude of 120 m.

354. ## math

What are 2 ways to write 67,000 1 way is sixty-seven thousand What is another way

355. ## AED 222

Can anyone please help me on this. I am having trouble trying to figure out what to write. Use the infromation you gathered throughout the course to distinguish what you think is the greatest strength and the greatest weakness of the current special

How long must a ladder be to reach the top of a 20' wall if the ladder and the wall form a 32 angle (at the top)?

357. ## Math

The square root with tha dash and slant thingy is between what two consecutive intergers? Will it be 2&3 or 8&9?

358. ## Math

Tom has some cubes that are 2 cm. on each side. How many of them will fit into a box that is a cube with each side 4 cm. long?

359. ## Science

What is a mineral. What are the two main groups of minerals and provide some examples of each?

360. ## physics

The angular position of a point on the rim of a 45.8 cm rotating wheel is given by θ(t) = 3.6 t2 − 2.8 t +7.5, where θ is measured in radians and t is measured in seconds. What is the instantaneous speed v of the point at time t = 6.5 s?

361. ## math

my friend asked me how to do this probelm and i could not figure it out for the live of me. its simple im pretty sure. (6-5i)/(6+5i) I tried using the conjugate method and my answer did not come out correct. can you please answer this?

362. ## maths

hi how would you calculate altitude given airspeed, rate of descent and time? thank you!

363. ## Physics

Dini is riding her bike eastward at a constant 9.5 m/s when a car pulls out of a side street a short distance in front of her. Dini applies her brakes and manages to stop in 2.5 s, just in time to avoid running into the car. Calculate Dini's average

There are more earthquakes along the western coast of the United States than along the eastern coast. Explain

365. ## Math

I know I posted this yesterday but I really do not understand this and I did not quite understand the comment on what to do. Find the real solutions of the equation. x = 2 sqrt6x-36

366. ## english

predicate of...the insects damage property

367. ## History

what are some similarities an differences between these three mediums: propaganda, advertising and bias? What tricks do you feel are frequently used in propaganda? Why?

368. ## Math

Tom has some cubes that are 2 cm. on each side. How many of them will fit into a box that is a cube with each side 4 cm. long?

369. ## physics

A bus travels 250 km south along a straightpath with an average velocity of 84 km/h to the south. The bus stops for 26 min, then it travels 240 km south with an average velocity of 70 km/h to the south. How long does the total trip last?

370. ## spelling

to correct-need words ending x,cks,ks

GRUMBLE-EXPLOTE-LANGUAGES-MUMBLED-STREAK-STUBBORN-DARTED Jack was so upset he could not stand still. He____________ from room to room looking for his spanish textbook.

372. ## chemistry

A lithium nucleus has three protons and three neutrons. How many electrons would it take to equal the mass of a lithium nucleus?

373. ## math

What are the defining characteristics of a golden triangle?

the meaning of median range

375. ## science

What are 3 items you can mix together and then they will settle into 3 different layers?

Given:

377. ## science

if a person has a mass of 75 kg what is his mass in grams

378. ## math

if x.y=30 and x+y=10.3 what is x ?

379. ## Bio

Covalent bonds between nucleotides in DNA are found between: A) a phosphate group and a nitrogenous base. B) a sugar and a nitrogenous base. C) nitrogenous bases. D) phosphate groups. E) a sugar and a phosphate group.

380. ## Accounting

1. Assume that Sprinturf uses a job order costing system. For the three basic cost categories of direct materials, direct labor, and overhead, identify at least two typical costs that would fall into each category for Sprinturf. 2. Assume a local high

381. ## Pre-Calculus

Find the values of x for which the line y=2x intersects the parabola y=(x-1)^2+1. So I set the equations equal to eachother, and solved for x using the quadratic formula. The solution I got was: x=3.41 and x=0.59. Could someone please check my work.

A bus travel 250km south along a straight path with the average velocity of 84km/h to the the bus stop for 26 min. Then in it travel 240km with avrage 70km/h to the south.How long long did the hold trip take? What is the average velocity of the trip?

383. ## math

a mountain path drops 296.3 ft vertically for every 4810ft horizontally. What is the grade for the path

384. ## physics

how would you calculate altitude given airspeed, rate of descent and time? I'm trying to find the change in altitude

385. ## math

solve the given equation for n. 12(n+9)=3(36+4n)

Add two prepositional phrases to this sentence. Can you help me find something that makes sense for the second half of the sentence. Thank You. The singer impressed her audience. The singer beside the stage impressed ________ her audience.

388. ## math

given the function k described by k(x)=x+2

389. ## Algebra

A certain can of iced tea contains 4% of the recommended daily allowance of sodium. The recommended daily allowance is 2500 milligrams. How many milligrams of sodium are in the can of iced tea?

390. ## math

x=(-5.15-5.89i).(30/(-5.15-5.89i)) i is the suare root of (-1) what is x. please help me , i cant figure it out. thank you.

391. ## medicine

A small bird needs 100mg/kg of antibiotic IM. The bird weighs 80g and the concentration of antibiotic is 100mg/ml. How many ml need to be given

392. ## medicine

A 8 lb rabbit needs 300ug/kg of a 1% solution. How many ml should be given

393. ## math

write each number as the product of prime factors. (a) 42__________________ (b) 110_________________ (c)...__________________ (d)...__________________ .... ....

394. ## math

Given the function K described by K(x)=x+2 find each following. K(0)= K(-8)= K(-12)= K(17)= K(d+4)=

395. ## Chemistry

I'll try to explain better, and will try to include a url. Examine the drawings in fig 11. What types of particles are modelled in each drawing? A) There are three individual cubes in that figure, they are all the same colour which is red. By individual I

396. ## math

rounded to the nearest ten i am 780. i am even.the sum of my digits is 17.

397. ## English

what is the definition of hemisphere i need something easy to remember

399. ## 9gr

3 - 15 × 5 a. 90 b. 0 c. –72 d. 78