1. physics

You have an inclined plane. It is 2m long and 1m high. A cylinder of mass 300 grams and 3cm radius is initially at rest at the top of the hill. What is its angular velocity when it reaches the bottom of the hill?

2. MicroEconomic

Strictly speaking, perfect competition has never existed and probably never will. Then why study it?

3. Calculus (urgent!!)

Please answer the following questions about the function f(x)=e^(-0.5x^2) Instructions: If you are asked to find x- or y-values, enter either a number, a list of numbers separated by commas, or None if there aren't any solutions. Use interval notation if

4. chemistry

In calibrating a thermometer by setting only the freezing and boiling points, what assumptions are you making regarding the internal diameter of the thermometer and the expansion of alcohol?

5. chemistry

In calibrating a thermometer by setting only the freezing and boiling points, what assumptions are you making regarding the internal diameter of the thermometer and the expansion of alcohol?

Today many employers expect interviewees to do more than just answer standard questions including all of the following except .defer to the hiring company to take control of the interview process B.provide samples of work they woukd likey do in the job.

7. home economics

Why do some workers make more money than others

8. science

A 250 kg object is acceelerating at 2.8 m/s2. What force was required to achieve this?

9. chemistry

In the reaction N2 + 3H2 -> 2NH3, how many grams of NH3 gas would be formed when H2 gas, having a volume of 11.2 liters at STP, reacts with excess N2 gas? Completly confused, thank you very much for your help :)

10. Chemistry

A 2.52 mg sample of the compound didemnin â€“ C was analyzed and found to have the following compositions: 1.55 mg C, 0.204 mg H, 0.209 mg N, and 0.557 mg O. The mass spectrum of didemnin â€“ C was found to have a parent mass peak of 1014 g/mol

11. Chemistry

In a decomposition reaction 2KCLO3 -> 2KCL + 3O2, what volume of O2 gas at STP would be produced from 3.66g of KCLO3 Thank You very much for your help :)

12. Chemistry

HELP!!! An unknown metal having a mass of 14.00g is dropped into 11.00mL of water at 20.0 degrees Celcius. The starting temperature of the chunk of metal is 100.0C. The final temperature of the water and metal is 32.5C. What is the specific heat of the

13. Information Technology Principles

If a term paper consisted 42 pages, each containing 40 lines of 100 symbols each (counting each space as a symbol), was to be encoded using Unicode, how many bytes of storage space would be required?

14. European History

Hi I just wanted to know if there is any evidence that Stalin used the fear/hatred of Kulaks to eradicate other political and social opponants... Thanks ps. If you could include any sources to support this it would REALLY help

15. Maths

Find the particular solution of the differential equation from: dy/dx = 2/27(x-3)ã(x^2-6x+23) / (y) (y>0. For which y=2 when x =1, and then give this particular solution in explicit form. regards Claire

16. Chemistry

Calculate the mass of H2O produced by the decomposition of 2.21g of CuCO3 x Cu (OH)2. What happend to this water? This question is incredibly important and I am stuck on it, thank you very much for your help

17. Math

Jane's garden is in the shape of a right triangle. One leg of the right triangle is longer than the other leg. The area of the garden is 63 square meters. What is the length of the longer leg?

18. chem

determine the wavelength of the line in the emission spectrum produced by an electron transition He+ from ni= 4 to nf= 2.

Jane's garden is in the shape of a right triangle. One leg of the right triangle is longer than the other leg. The area of the garden is 63 square meters. What is the length of the longer leg?

20. Physics

A concave mirror has a focal length of 20 cm. What is the magnification of an object placed 128 cm in front of this mirror?

21. Physics 2

A converging lens with a focal length of 19 cm is used to form an image on a screen that is 3.3 m to the right the lens. Where must the object be placed? ____m to the left of the lens?

22. calculus

A rumor spreads through a population in such a way that "t" hours after the rumor starts, the percent of people involved in passing it on is given by P(t)=100[e^(-t)-e^(-4t)]. What is the highest percent of people involved in spreading the rumor within the

150. physics

A 110-kg crate, starting from rest, is pulled across a floor with a constant horizontal force of 420 N. For the first 13 m the floor is frictionless, and for the next 13 m the coefficient of friction is 0.35. What is the final speed of the crate?

151. English

Can you please check the following sentences, please. It's really urgent. 1) Following what Joyce had already done in England and Proust in France, and what, in some way, Sterne had attempted as early as two centuries before, Virginia Woolf therefore

217. biology

What is the typical ratio for a dihybrid cross between two parents that are double heterozygotes?

218. physics

alpha particles are accelerated through a potential of 1000volts and then enter a magnetic field 0.2T perpendicular to the their direction of motion.Calculate the radius of the circular path that they traverse.An alpha particle has a mass 6.68x 10^-27kg

3 dice are rolled let (y,r,b) represent each outcome? a- sample space b- prob rolling a sum of 18 c- prob of rolling a sum less than 5

220. spanish

Rewrite each statement two ways using object pronouns. Tengo que leer los libros en una semana.

221. english

Are the pronoun refrences clearly started in these sentences? 1. The governor t told the mayor that she would win by a landslide. 2. When the mayor thanked the governor, she was happy. 3. People who wish to vote must do so before 7:00 p.m., for after that

222. english

Which element of a short story would be most important to a story about a mad scientist stealing a secret weapon?

223. math

a single numbered standard cube is tossed. what is the probability of getting a number other than nine

224. Pre-Algreba

The ratio of the number of postcards john had to the number of postcards Zachary ha d was 4:9. Zachary had 45 more postcards than John. After giving some postcards to John, Zachary had 6/7 as many postcards as John. (A) How many postcards did Zachary have

252. Physics 20

Dymamics unit A car standing still is struck by 2 other cars simultaneously. a beetle applies a force of 2350N [N60degreesE] and a truck applies a force of 4150N [SW]. What is the net force acting on the stationary car?

253. physics 20

DYNAMICS: A 54kg fireman slides down a pole of a distance of 3m. if the man hits the groung at 4.4m/s than what will the force of friction acting on the man due to the pole?

254. Writing

The propmt is Write a story about a time that I did something that caused me to feel pride in myself. What is this action and why did it make me feel pride in myself. I need help writing a story into this and you proofread and revise my grammaticly

255. chemistry

Consider the following reaction Al(OH)3 + 3HCL ____>ALCL3 How many milliltres of 0.8 M HCL will react with 2g of AL(OH)3 ??

284. Physics

The Hubble Space Telescope orbits the Earth at an approximate altitude of 612 km. Its mass is 11,100 kg and the mass of the Earth is 5.97×1024 kg. The Earth's average radius is 6.38×106 m. What is the magnitude of the gravitational force that the Earth

285. Microbiology

What is the purpose of agar in media?

286. Microbiology

How would you determine whether a colony was a containminant on a streak plate?

287. Physics

The Hubble Space Telescope orbits the Earth at an approximate altitude of 612 km. Its mass is 11,100 kg and the mass of the Earth is 5.97×1024 kg. The Earth's average radius is 6.38×106 m. What is the magnitude of the gravitational force that the Earth

288. grammar

how can i rephrase this sentence WITHOUT using any personal pronouns --do you think the dough will rise the fastest in the sample with the highest, lowest, or a moderate concentration of sugar? thank you!

289. College Algebra

What is the difference between direct variation and joint variation and please put into words an example.

290. trig

If an equilateral triangle has a side of 10 ft what is its altitude to two significant digits

291. geometry

Consider the coordinates given and decide whether BC and DE are parallel, perpendicular, or neither B(3, -3), C(-3, -7), D(6, -5), E(0, 4) B(4, -7), C(1, 2), D(2, -8), E(-4, 10) B(-4, 0), C(2, 2), D(1, 4), E(2, 7)

292. Calculus (urgent!!)

Find a formula for a curve of the form y=e^((−(x−a)^2)/b) for b greater than 0 with a local maximum at x=−5 and points of inflection at x=−8 and x=−2.

293. Workplace Hazards and Safety

Describe and explain 5 rights and/or responsibilities of the worker with regards to safety in the workplace. This is the information I have: Worker's responsibilites: -Cooperate with the joint committee or worker health and safety representative,

294. geomery b

I need help understanding this so please help me?? 1. A table is 4 ft high. A small model of the table is 6 in. high. What is the ratio of the height of the model table to the height of the real table? 2 : 3 1 : 6 1 : 8 2 : 6 2. If a/b = 9/10, complete

295. Calculus (pleas help!!!)

Let f(x)=e^(2x)-kx, for k greater than 0. Using a calculator or computer, sketch the graph of f for k=1/9, 1/6,1/3,1/2,1,2,4. Describe what happens as k changes. f(x) has a local minimum. Find the location of the minimum. x= ____ Find the y-coordinate of

296. Math

how does (2) / √[(2+√(2))] become (2-√(2))√[(2+√(2))] steps too please

297. math

how to put weights in order from least to greatest

298. chemistry

The Ka for hydroflouric acid is 4.5 *10^-4 at 298K. Calculate the amount of sold NaF that is required toprepare a 250. mL acidic buffer with pH = 2.75. The inital molarity of hydroflouric acid is .250M but you have only 75mL. Part 2 Recalculate the pH of

299. Finance

what would happen if i had a credit card with $2000 dollars on it with an interest rate of 10%.the minimum payment is$50 a month how long would it take to pay off

300. English

Describe and explain 5 rights and/or responsibilities of the worker with regards to safety in the workplace. This is the information I have: Worker's responsibilites: -Cooperate with the joint committee or worker health and safety representative,

301. Physics 20

Dymamics unit A car standing still is struck by 2 other cars simultaneously. a beetle applies a force of 2350N [N60degreesE] and a truck applies a force of 4150N [SW]. What is the net force acting on the stationary car?

302. math

Consider the function f(x) whose second derivative is f''(x) = 5 x + 6 \sin (x). If f(0) = 4 and f'(0) = 2, what is f(x)?

303. accounting

a merchandising company wants to include the cost of operating its warehouse in the cost of inventory. The company’s controller argues that the cost of the warehouse is a reasonable and necessary cost of getting the inventory ready for sale and,

304. math

The density of a crystal is 2.65 grams per cubic centimeter. Ryan has a rectangular prism made of quartz. It measures 10 cm by 10 cm by 6 cm. Find the weight of this crystal in kilograms.

305. chemistry

How many molecules water are produced from 33 g lithium hydroxide? and work the slove

306. English

Please check for comma errors. If I need to add any commas or take some out please show me where. Thank you!! You seem to be progressing nicely after your back surgery; however, I do want to remind you of the importance of the instructions that was give to

307. English-Help

Please check for commas errors. If I need to add or take out any commas, please show me where. Have you quit trying to train your dog? Don’t be discouraged. We have the answer to your problem. Professional obedience training can make an amazing different

308. Calculus (urgent!!)

Find a formula for a curve of the form y=e^((−(x−a)^2)/b) for b greater than 0 with a local maximum at x=−5 and points of inflection at x=−8 and x=−2.

If 1100 square centimeters of material is available to make a box with a square base and an open top, find the largest possible volume of the box. I'm supposed to type the answer in cubic centimeters... my answer was 2500 cm^3 but it's wrong... I have also

310. ENGLISH

Please check for commas errors and capilization. If I need to add or take out any commas, please show me where. Nashville, TN, November 9, 2011: Anisha Carter was named the new president of M& M Industries, and will take commands of the company on November

311. math

the density of a diamond is 3.52 grams per cubic centimeter. Sally has a diamond that has a volume of 20 mm^3. What is the weight of the diamond?.

312. chemistry

210 210 Pb --> Bi + ? 82 83 60 0 Co --> ? + e 27 -1 I need an explanation on how to find the missing product.

313. Enghlish-Now

Please read any if I need to add any commas or delete any, please let me kow where. Thank you!! Your presentation the Martin Managerial Conference in Chicago was excellent. While you were speaking, the audience was more attentive than they had been at any

335. algebra

Find f(x) and g(x) such that f(g(x))= square root of x over 6 square root of x+5 .

336. Chemistry

An empty flask weighs 128.632g. After vaporization of a sample of volatile liquid, at a measured temperature of 99.8 C. The flask is sealed, cooled to room temperature, and weighed. The mass is now 129.225g. The measured P atm is 757.7 torr. The flask is