# Questions Asked onOctober 2, 2011

1. ## Physics

The coefficient of kinetic friction for a 22 kg bobsled on a track is 0.15. What force is required to push it down a 6.0° incline and achieve a speed of 64 km/h at the end of 75 m?

2. ## chemistry

Mg3N2 +6H2O- 3Mg(OH)2 + 2NH3-- How many grams of H2O are needed to produce 150g of Mg(OH)2? I thought I had this but.....the correct answer should be 93 grams Where did I go wrong?? 1) Change 150 g Mg(OH)2 into moles by dividing by molar mass from periodic

3. ## math word problems

Sally and marta had the same number of postcards. After sally sold 18 of her postcards, marta had 4 times as many postcards as sally. How many postcards did each girl have to begin with?

4. ## math

the height in feet of a flare t seconds after it is shot is modeled by h(t)= -16t2+92t+3.5 find its average speed from 1 to 3 seconds

5. ## PHYSICS

Given: The initial position of the block is the origin; i.e., x = 0 at t = 0 . Consider down the track to be the positive x-direction. A block with an initial velocity v0 slides up and back down a frictionless incline. Which graph best represents a

6. ## statistics

samples of size n=900 are randomly selected from the population of numbers (0 through 9) produced by a random-number generator, and the proportion of numbers greater than 5 is found for each sample. what is the shape distribution of the sample proportions

7. ## Pre-Calculus

A rectangle is bounded by the x-axis and the semicircle y = √36 – x2, as shown in the figure below. Write the area A of the rectangle as a function of x, and determine the domain of the area function. A = all real numbers except x = 36 all real numbers

8. ## chemistry

what mass of water can be obtained from 4.0g of H2 and 16g of O2?

9. ## CHEM - ASAPPP

write the equation for the reaction of fecl2 with k3[fe(cn)6]???

10. ## Physics

On a hot summer day in the state of Washington while kayaking, I saw several swimmers jump from a railroad bridge into the Snohomish River below. The swimmers stepped off the bridge, and I estimated that they hit the water 1.5s later. a) How high was the

11. ## Chemistry

A balanced equation for copper oxide + ethanoic acid.

12. ## physics

An outfielder throws a 0.150-kg baseball at a speed of 50.0 m/s and an initial angle of 30.0°. What is the kinetic energy of the ball at the highest point of its motion?

162. ## Geomentry

(3x-14)degrees (70)degrees

163. ## physics

A block is dropped onto a spring with k = 27 N/m. The block has a speed of 3.2 m/s just before it strikes the spring. If the spring compresses an amount 0.13 m before bringing the block to rest, what is the mass of the block?

164. ## history

what is vigilantism and how and when does it arise? (political philosophy)

165. ## Microeconomics

Last year Delta airlines purchased and stored 1 million gallons of aviation fuel at a time when aviation fuel was selling for $2.00 per gallon. Aviation fuel is now valued at$3.00 per gallon. What is the opportunity cost of using this stored fuel now?

166. ## math

1. The cost, in millions of dollars, to remove x % of pollution in a lake modeled by

167. ## Chemistry

Given the general equation: 3x +4y 2x, kc= 4.5 E-5 a. What is the kp? b. What does Kc equal for 2xy 3x + 4y? c. What does Kc equal for 6xy 9x +12y?

168. ## Science

What did Sir Humphry Davy do with the battery he built? I've looked online and haven't been able to find anything. Please help me!!!!

169. ## physics

Stickman is driving a dragster. He does the quarter mile in 4 seconds and at the finish line is speed is 100m/s. He deploys his parachute after he crosses the finish line and wished to slow to a speed of 10m/s in 10s. What diameter parachute does he need

if f is a function such that lim x->6,f(x)=-5, evaluate lim x->6 -2f(x)+5f(x+3).

171. ## Physics

How does the resultant of two vectors change as the angle between the two vectors increase?

Which of the following would be classified as an informative or positive message? a) A request for information b) An announcement of a policy that reduces benefits c) A memo for the file recording actions and rationales d) A letter to an employer

173. ## math

What is the dormain and range of h(x)=|2x -3|-1

174. ## Math

Factor 1. 8a^2-2ab-21b^2 2. 6m^2-90m+324 3.5x(2-x)+4x(2x-5)-(3x-4) 4. 9(y-1)^2-25 5. 3x^2-27(2-x)^2

175. ## Physics

how can the equilibrant of two or more concurrent forces be found

176. ## math

expand and simplify 1.(x^2-3x+4)(-x^2+3x-4) 2.3(2x-5)-9(4x-5)

177. ## Math

simplify 1. (2x^4-3x^2-6)+(6x^4-x^3+4x^2+5) 2. -7x(x^2+x-1)-3x(2x^2-5x+6) 3. -2x[ 5x-(2x-7)]+6x[3x-(1+2x)]

178. ## chemistry

If the standard state of sufur is S8 (s), which of the following equations represents the standard enthalpy of formation of H2SO4 (ℓ) ?  A. 2H (g) + S (g) + 4 O (g)  H2SO4 (ℓ) B. H2 (g) + S8 (g) + 2 O2 (g)  H2SO4(ℓ) C. H2SO4 (ℓ)  H2 (g) +

179. ## Math

Factor 1. a^4-16 2. (m-n)^2-(2m+3n)^2 3.2x^4y^4-6x^5y^3+8x^3y 4.12m^2n^3+18m^3n^2

180. ## Fibonacci numbers

I have three problems to answer dealing with Fibonacci numbers. I understand the first two, but would like for reassurrance that they are correct and lost on the last one and could use some help. Thank you. 1. Fibonacci numbers can not be used more than

181. ## Chemistry

If the standard state of sufur is S8 (s), which of the following equations represents the standard enthalpy of formation of H2SO4 (ℓ) ?  A. 2H (g) + S (g) + 4 O (g)  H2SO4 (ℓ) B. H2 (g) + S8 (g) + 2 O2 (g)  H2SO4(ℓ) C. H2SO4 (ℓ)  H2 (g) +

182. ## algebra

3/4 of a number is 1/2. Find the number in the lowest terms... please show work I am confused

183. ## calculus

Piecewise f(x) = { (x^2, x2) I am not sure what the graph would look like for the 2nd function. Any tips on drawing functions like this would be of great help.

184. ## trig

Find all solutions to the equation 2cos(2x) = x + 1, correct to 4 decimal places.

185. ## chemistry

IF YOU HAV 1.40 MOLES OF H2O HOW MANY OF NH3 CN BE PRODUCED.

186. ## Physics

Consider a particle undergoing positive acceleration. (1) what is the shape of the position-time graph? (2) How do we determine an instantaneous velocity from the position-time graph?

187. ## Statistics

A bag contains two blue, three purple, four yellow, two red, three green and one orange marbles. What is the conditional probability that, without replacement, the second marble is purple given that the first marble is green?

188. ## English

I forgot to include these last two sentences. Thank you very much. 1) But now that she has experienced the true essence of love, everything else seems false and artificial. 2) Dorian is very angry and disappointed and instantly severes their relationship.

189. ## earth

A satellite moves in a circular orbit about our earth exactly four times a day. Find its orbit, radius , speed and weight.

190. ## Chemistry

why is a water molecule is much more likely to give up a proton than a methane molecule

191. ## algebra

want to know if this right find the x and y intercepts of the equation plotting the intercepts -3x-5y=15 -3x-5(0)=15 -3x-0=15 -3x=15 x=-5 the x intercepts are (-5,0) find the y -3x-5y=15 -3(0)-5y=15 0-5y=15 -5y=15 y=-3(0,-3)

192. ## Biology

(Is my answer right or wrong because i have no idea.) Why is the caspid protein important? The caspid includes protein that enable a virus to enter a host cell. The caspid protein of a typical virus bind to the surface of a cell and "tricks" the cell into

193. ## Physics

A chair with a mass of 30.0kg is shot with a 10g bullet traveling at a speed of 250m/s. The bullet goes 6cm into the chair. The given kinetic friction for for this problem is .2. How far does the chair slide in cm?

194. ## writing

Write one topic sentence for your Week Nine essay and explain the primary role of a topic sentence in an effective essay? My essay will be about "Most Americans should not use credit cards." The topic sentence I have is "Most Americans should not use

195. ## Physics

A box of books weighing 290 N is shoved across the floor of an apartment by a force of 400 N exerted downward at an angle of 35.0° below the horizontal. If the coefficient of kinetic friction between box and floor is 0.57, how long does it take to move

196. ## English

Thank you very much. Here are the very last sentences on the same theme. Thank you!!! 1) Alan Campbell was an extremely intelligent young man with a passion for science and music. He had first met Dorian at Lady Berkshire’s during a Rubenstein recital.

197. ## Progress Report/NJHS

What do they REALLY do at the national jr honor socity? I'm just being curious. Also What is REALLY a progress report ? (before report cards)

198. ## physics

A tennis ball is hit vertically upward and returns 6 sec later calculate. A) the greatest height reached by the ball. B) the initial velocity of the ball .

199. ## Marketing

Pick a product or service and explain the nature of consumption by Hispanic, African American, or Asian consumers. Why does consumption differ from the other groups? You are required to find 2 sources to support your paper (newspaper articles, books or

200. ## Algerbra

The area of a rectangle is 243cm^2. The length is three times greater than the width. What are the dimensions of the rectangle?

201. ## math

solve for b ab+3c=2x, I got b=2x-3c/a

202. ## Fib. Number

I noticed someone else is having problems with the same problem below that I am. Since I have a Matt in my class he is having the same problem I am and could use some help. Fib. numbers are not in my math book and I cannot find any help online with these

203. ## Calculus

Assume that a>0. Evaluate the integral from 0 to a of x dx by approximating the region bounded by y=x and the x-axis from 0 to a with rectangles. Use equal subintervals and take right endpoints.

238. ## English

Aristotle's Virtues: Vice of Excess: Rashness the Virtuous Mean: Courage Vice of Deficiency: Cowardice I'm just confused. Would the "Vice of Deficiency" mean the deficiency of the virtuous mean? Meaning is cowardice the deficiency of courage?? OR does the

239. ## statistics

According to the National Transportation Safety Board, 10% of all major automobile crashes result in serious injury to at least one person involved in the crash. The Georgia Department of Transportation reports that there are approximately 20 major

240. ## physics

A bullet is fired with a speed of 450m/s through a board 20 cm thick. If the bullet is subject to a large deceleration of magnitude 106m/s2, will the bullet be able to emerge from the other side of the board ?

241. ## More Algebra

Eve and Jason have an exercise routine that they do together three days a week. Together, they can lift 225 pounds. a) If Eve can lift 113 pounds,how many pounds can Jason lift? b). If Eve can lift 87 pounds, how many pounds can Jason lift? c) What

242. ## Geology

When a hurricane approches a costal area the damage from the storm surge is greater if it occurs: low tide, high tide, tide makes no difference? The dew point of a prcel of air refers to: its elevation above the surface, the temp. at which condesation will

243. ## algebra

can you please help me with this so that i can do my other problems simplify and show alll work -4x^2-3x-(x-x^2+3)

244. ## human services

my beliefs, values, and clinical gesatalt with individuals and systems paper

245. ## math

The Pythagorean Theorem for right triangles states that if a and b are the lengths of the legs of a right triangle and c is the length of the hypotenuse, then a2 C b2 D c2

246. ## Economics

This is about economic solution.There are 2 regions but they were given by different each other function of demand and supply.1.First question is we won't sell these products on both regions and you can't transport the product each other.So please find the

247. ## physics

a body starts from rest and acquire avelosity V in time T. The instantaneous power developed to the body is proportionalto

248. ## physics

A freight train has a speed of 20.8 m/s at a given instant and 10.8 seconds later its speed is 17.1 m/s. What is the train's acceleration

249. ## Physics

Two objects attract each other gravitationally with a force of 2.9 10-10 N when they are 0.29 m apart. Their total mass is 4.0 kg. Find their individual masses.

i tried these quesions so manytimes , but i just cant get he rigt answer ! 1.) 4(2-a)^2-81 2.) -(x-y)^3 3.)3x^2-27(2-x)^2 4.) 9(y-1)^2-25

251. ## physics

What quantity is given by the gradient of such a graph?

252. ## Biology

explain the progression of the atmosphere from prebiotic to its current makeup

253. ## Physics

A car has a velocity of 10m/s it now accelerate at 1m/s square, for 1/4.find the final speed of the car.

254. ## Vocab

Is a person who doesn't spend money, petty?

255. ## candles for chem

How does the wax burn without touching the flames in a candle?

256. ## math

sig figs for.. 1.399 x by 10-3 0.0763 m2 212.080 g 673.133 K 6.69808e+06 cm

257. ## pre calculus

Change the exponentioanl expression to an equivalent expression involving a logarithm. e^-1/3 = 9t Somebody help PLease!

258. ## physics

When does the rocket reach maximum height? Answer in units of s

259. ## physics

How long is the rocket in the air? Answer in units of s

260. ## English

How does Shakespeare work loyalty and betrayal into the play King Lear. Context of order vs. chaos?

261. ## Calculus

Find the value of a≥0 that maximizes the integral from 0 to a of (4-x²)dx. Thank you!

262. ## Geology

which 2 would create a low pressure at the surface? warm temp., cold temp., air moving through a terrain constriction, or air moving out of a terrain constriction. What is the main reason hail is not associated with tropical thunderstorms: lack of

Which one of the following statements best describes a budget "blind spot"? A : To little oney was set aside to cover an expense B. This is an expense the person overlooked or did not account for when setting up the budget. c. This is an item that requires

264. ## science

if i have a Km of 9.78 x 10^-3, is that a relatively high Km, and therefore a low affinity for an enzyme?

265. ## chem

does the wick burn or the wax burn in a candle?

266. ## 11Law

what is some background information on homosexuals?

267. ## US government

What is the freedom from prior restraint?

268. ## math

3/4 - 1/3z= 1/4 please show step by step to ans.

269. ## chemistry

case 1: Iron (3) sulphide contains 46.3% by mass of sulphur, and 53.7% by mass of Fe. case 2: Also Iron (2) sulphide contain 36.50% by mass of S and 63.50% by mass of Fe.a) Calculate the mass of sulphur which combine with 1gm of Iron in case 1 and in case

270. ## Biology

What is the difference between an action and absorption spectrum? (We're talking about photosynthesis and the colors absorbed and such)

271. ## maths

solve x2-(5-i)x+(18+i)

272. ## Math

Dominic arrived at work and went behind the counter at the north end. As he faced out over the counter, north was to his right, south to his left. While he was standing at the north end, a customer ordered a sandwich. Dominic went through these steps: 3

273. ## Geology

A thunderstorm tends to be more severe and have a longer duration if the axis of the storm is: tilted, perpendicular to the ground, or it makes no difference. (Straight forward answers, if possible use the answer choices provided please & thank you)

274. ## algebra

what is a variable change and a constant change?

275. ## pre calculus

Write the expression below as a single logarithm. 2in(x+4)-in((x^(2)+x-12)/(x))

276. ## history

These lawyers, and men of learning, and moneyed men, that talk so finely, and gloss over matters so smoothly, to make us poor illiterate people swallow down the pill, expect to get into Congress themselves...and then they will swallow up all us little

277. ## English

I'm posting you the ones I'm most doubtful about. 1) The Romantics turned to earlier verse forms. They saw society as an evil (force?) which destroyed the individual's personality. 2) In some of them (?) this spirit of revolt led to ......In others (?) it

279. ## Astronomy

Suppose the Sun were twice as massive as it actually is. What would be the orbital period of a planet at a distance of 10AU from the Sun?

280. ## Science

what standards are used to measure temperature? WHAT DOES THIS QUESTION MEAN? and i would like an answer too

281. ## Calculus

Take the derivative of f(x) = 4x^3+(7/x^2).

282. ## Science

If the force of friction acting on a sliding crate is 79 N, how much force must be applied to maintain a constant velocity?

283. ## math

Route 27 runs from Bakersville to Malden through Smilyville. The distance from Bakersville to Smilyville is 81 miles, and the distance from Bakersville to Malden is 204 miles. What is the distance from Smilyville to Malden?

284. ## bio-assap

if there were two proteins samples of exactly the same concentration but one sample contained a protein having a significantly higher number of arginine and lysine residues compared to that of the other sample - would there be a difference in the amount of

285. ## Science

How would the Koppen Climate classification system describe the climate(s) of the Hawaiian Island? I read somwhere that Hawaii has over 13 Koppen Climate classifications and what are they?

286. ## cell bio

Sketch a transition phase diagram with two curves; one for C18:0 and a second for C18.1. Label X and Y. Add a third curve for what you might predict would happen if a nonionic detergent like Triton X-100 were present in the C18:0 preparation

287. ## Social Studies

What is natural resources ???

288. ## Math

Let L be the line whose equation is Re(z) + Im(z) = 2. Find the equation of the inversion of L, expressed in terms of a complex variable z. Thanks so much! Lexi

289. ## Comp 156

How does a persuasive essay differ from a biased essay?

290. ## Social Media

What protest and of-the-moment commentary songs have been most influential and successful at getting their point across

291. ## psychology

Thanks so much for your help PsyDag. God Bless!!!!

292. ## alg2/trig

Which expression is defined for all real numbers? a) x + 3/x^2 b) 5/(x + 2)^2 c)4/(x − 2)^2 d)7/x^2 + 3

293. ## Social Media

Over the last century, has music changed from being about artistic expression to being more about money and business? Is it even possible for a band or artist to make topical or political commentary in a song today while focusing on turning a profit?

294. ## Algebra II

prove the following using trigonometric identities: cos 0 (sin 0 + cos 2nd power / sin 0) = cot 2. Keep getting stuck. thanks

295. ## math

you ate 1/4 of a pizza. your sister ate 1/6 of the pizza. how much of the pizza is left?

296. ## algebra

The length of a rectangle is 3x + 4/4x^2-4 and and the width is8x − 8/6 the area of the rectangle is a)1 b)2 c)x+1/x-1 d)4 please help!

297. ## science

Tight junctions prevent the movement of the extracellular matrix between cells. A) True B) False Which one is it please :)

298. ## physics

An object moving with uniform acceleration has a velocity of 11.0 cm/s in the positive x-direction when its x-coordinate is 2.97 cm. If its x-coordinate 2.95 s later is −5.00 cm, what is its acceleration?

299. ## physical geology

Select a city or region that is faced with one of the following issues: o Saltwater invasion in coastal wells o Depletion of an aquifer for drinking or agricultural water o Subsidence associated with water pumping o Depletion or pollution of surface water

300. ## physics

An object moving with uniform acceleration has a velocity of 11.0 cm/s in the positive x-direction when its x-coordinate is 2.97 cm. If its x-coordinate 2.95 s later is −5.00 cm, what is its acceleration?

301. ## Algebra - Did I do this right?

Q = Josh and his brother willdrive from Boston to New York, a distance of 220 miles. If they drive an average speed of 55 miles per hour, how long will it take Josh and his brother to arrive in New York? A = 266,806/220 = m m = 1212.7445 Did I do it

302. ## Socials - - Canada

Identify four cultural/racial groups who were not popular choices for coming to Canada. With each group identify four ways in which the federal Gov't systematically made it tougher for these people to immigrate to and to move around in the country. Provide

303. ## Physics

What is the maximum amount of force a human can exert in newtons?

304. ## English

These sentences refer to the definition of tragedies. Can you please check the grammar? Thank you very much in advance. 1) Classical tragedies were usually introduced by a prologue from a chorus, who commented on the main action or advised the main

305. ## Astronomy

In the equation 4pi^2/G/p^2 times a^3, what is the value of 4pi^2? Is it 39.47? or 157.913

306. ## Socials

Describe the situation of women in Canada, in the years before world war I. They had very few rights. Their husbands controlled their property, and they were mainly employed as servants and factory workers. They didn't have the right to vote, and were

308. ## Physics

A spring with k=42N/m is mounted horizontally at the edge of a 1.2m high table. The spring is compressed 5cm and a 25g pellet is placed at its end. When the spring is released,m how far horizontally from the edge of the table does the pellet strike the

309. ## College Math

I am really struggling with this Fibonacci number problem. If the greates common factor of "m" and "n" is "r", then the greatest common factor of Fm and Fn is Fr. Show that this is true for m=6 and n=9. I am so confused

310. ## math

What is the dormain and range of square root of x-5

311. ## math

how do i write the slope-intercept form of the equation of the line through the given points??? through (0,-1) and (-5,-3)??

312. ## math

What is the dormain and range of g (x) =square root of x-5

313. ## Calc

ex: Find the indicated derivative using implicit differentiation. e^x/y^2= 8 + e^y; dy/dx Please I need help and thank you very much!

314. ## Math

On July 5th six different people reported to the police that they had seen Bigfoot, the large hairy creature sometimes seen but never captured. The next day, twice as many people called the police; sure they had seen the creature. Each day the police

315. ## math

3/4-1/3z=1/4 5/6c-2/3c=1/3 please show step by step Thanks!

316. ## science

hi im eleven and i know nothing about acids and alkalis so plz help it sez nothing here about

317. ## Math

expand and simplify 1. -(y^2-4y+7)(3y^2-5y-3) 2.2(a+b^3

318. ## Physics

Nuclear fusion reactions require that positively charged nuclei be brought into close proximity, against the electrostatic repulsion. As a simple example, suppose a proton is fired at a second, stationary proton from a large distance away. What kinetic

319. ## math

Find the value of the angle data in degrees rounded to the nearest tenth of a degree.

320. ## calculus

Let f(x)=6x+16x^2 . Then the equation of the tangent line to the graph of f(x) at the point (2,16) is given by y=mx+b for m= and b=

321. ## science

Tight junctions prevent the movement of the extracellular matrix between cells. A) True B) False Which one is it please :)

322. ## chemistry

Calculate the enthalpy change, ΔrH, for the following reaction, 4 NH3 (g) + 5 O2(g) → 4 NO (g) + 6 H2O (g) given the thermochemical equations below. N2 (g) + O2 (g) → 2 NO (g) ΔrH° = +181 kJ N2 (g) + 3 H2 (g) → 2 NH3 (g) ΔrH° = 91.8 kJ 2 H2

323. ## Pre-Calc

Evaluate the indicated function for f(x)=x^2-8 and g(x)=x-4 (fg)(3) Am i doing this right? ((x^2)-8))(x-4) =(x^3 -12+32)(3) Answer=3x^3 -36+96 Thanks!

324. ## crimnal justice

Which of the following is an ethical system that does not support using the individual as a means to an end? A. Natural law B. Utilitarianism C. Ethical formalism D. Egoism

325. ## Technology

Which software is best for creating advertisement? Give at least 3 different possibilities

326. ## egd

I need information on a floor plan.The floor plan consists of 1 bedroom,bathroom & a kitchen.I need a design brief on how to draw it and what any other relavinet info.Please con you help!!!

327. ## english

Does anyone know where to find a summary for the story "Half Beat" by Elizabeth Gonzalez in the book the best american nonrequired reading?

328. ## Geology

why do fall winds always warm as they descend the lee side of a mountain

329. ## English

Thank you very much. Here are a few things of Romanticism I'd like you to check. 1) The Romantics turned to earlier verse forms. 2) They saw society as an evil (force?) which destroyed the individual's personality. In some of them this spirit of revolt led

330. ## statistics

The following data on the number of iron workers in the United States for the years 1978 through 2008 are provided by the U.S. Bureau of Labor Statistics. Using regression techniques discussed in this section, analyze the data for trend. Develop a scatter

331. ## programming

what are application- level requirements

332. ## algebra

A survey of 2,000 people was given to find their mode of transportation to work each day. The pie chart below gives the results. Of the people surveyed, how many travel by bike to work?

Emilio is employed as full-time mechanic in the service department of an auto dealer. In his soare time, He draws political artoons and sells them to the weekly newspaper in his hoe town. He is paid \$35 for each cartoon, which amounts to an additional

334. ## Statistics

A bag contains two blue, three purple, four yellow, two red, three green and one orange marbles. What is the conditional probability that, without replacement, the second marble is purple given that the first marble is green?

335. ## Statistics

Please help me. I am working a paper that needs a verbal statment and a numerical statement. My hypthoesis is The use of social media Facebook is associated with an increase among couples.. if anyone can help that would be great. Thanks so much.

336. ## algebra

how to solve equations like SQRT(x-6)/SQRT(4-x) for their domain

337. ## math

540 kg of dry concrete mixture is to be spread over three surfaces in the ratio equal to that of their areas.If their areas are 9 square m,11 square m and 16 square m,how much is used on each surface?

338. ## functions grd 12

what are the number of turning points for this equation? y=4x^2 and can you plz explain how u find them thanks :)

339. ## physics

A man cycles to his destination with the wind at 8m/s and returns home against the wind at 4m/s what is his average speed

340. ## Physical Science

What fuel other than uranuin can be used in a nuclear reactor?

5(x-3)=

342. ## Maths

Sacks are filled with 100 kg of sand corect to the nearest 10 kg. what is the least possible amout of sand and the greatest possible amound of sand in a sack?

343. ## Geology

Winds blow whenever there are: cold temperatures, pressure inequalities in the atmosphere, or the earth rotates on its axis

344. ## Geology

When will a thunderstorm tend to be more severe and have a longer duration in reference to the axis of a storm.

345. ## math

3/4-1/3z=1/4 5/6c-2/3c=1/3 please show step by step Thanks! I now the ans for the first one is 3/2 but how did you work it out?

346. ## Math

Ernesto makes a snack mix. For every cup of raisins he adds 2 cups of peanuts and 3 of pretzels. What fractional part is peanuts?

347. ## writing essays

Which of the following will help you produce clear and focused writing? A.Brainstorming before writing. B.A rubric that provides criteria. C.The style of your paper. D.A solid thesis statement. i got A what do you think

348. ## English

Aristotle's Virtues I'm just confused if in generally the vice of deficiency means the "definicency of the mean" OR the deficiency of what is stated. Ex: cowardice the definicency of courage OR deficiency of cowardice: being lack of cowardice

349. ## Physics

One type of aeroplane has a maximum acceleration on the ground of 3.4m/s what is the minimum length of runaway needed if it is to reach its take off speed of 110m/s.and how long atime will this take.

350. ## Math

what would be a set of 12 numbers that have the landmarks: maximum 8 range 6 mode 6 median 5

351. ## uco

how to solve 3x^2+4x-2=0 (mod 5)

352. ## physics

A bullet is fired with a speed of 450 m/s through a board 20cm thick. If the bullet is subject to a large deceleration of magnitude 10^6m/s^2, will the bullet be able to emerge from the other side of the board.?