# Questions Asked onNovember 17, 2010

1. ## Computer science

what are some examples of a computer system in an unsafe state and describe how the process could be complete without causing a deadlock.

2. ## contemporary Math

If there are 2 red disks numbered 1 through 2, and 6 yellow disks numbered 3 through 8, find the probability of selecting a red disk, givent that an odd-numbered disk is selected?

3. ## Physics

A 120 kg astronaut (including space suit) acquires a speed of 3.00 m/s by pushing off with his legs from an 1900 kg space capsule. What is the change in speed of the space capsule? As the reference frame, use the position of the space capsule before the

4. ## physics

An object is solid throughout. When the object is completely submerged in ethanol alcohol., its apparent weight is 15.2 N. When completely submerged in water, its weight is 13.7 N. What is its volume? Steps please.. answer isnt really necessary

5. ## law

if you were a leader in your community. what LAW would you write to help others?

6. ## school of social science

what is quantitative research?

how many positive integral factors does the number 36 have? I don't understand what that means or how to find the answer.

8. ## Maths

Multiple-choice questions in a test are graded by adding 2 marks for each correct response and subtracting 1 mark for each incorrect response (including no response). Rory and Jenny answered all the multiple-choice questions, with Rory scoring 27 and Jenny

9. ## Physics/Chemistry

few other questions. 1.) Suppose you expend 430 kilocalories during a long walk, how many liters of ice water at 0 degrees do you need to consume in order to use up the 430 kilocalories of metabolic energy. Stomach can hold 1 liter. 2. A person eats a

10. ## English title help!

I need help thinking up a title for my paper!! My paper is about contrast between passionate, youthful love and mature, steady love it is about the book "O Pioneers!" by Willa Cather.. Cather implies that passionate love is dangerous and unstable and is

11. ## math

The lcm of two #s is 60. one of the #s is 20. other # is even & has only two prime factors. what is the other number?

12. ## physiscs

A 2 kg rock is released from rest at a height of 29 m. Ignore air resistance and determine the kinetic energy, gravitational potential energy, and total mechanical energy at each of the following heights;20m 15m 9m

13. ## chemistry

What volume of 9.54M sodium chloride solution must be added to the correct amount of water to produce 750. mL of a .327 M sodium chloride solution?

14. ## chemistry

how many moles of naoh could be absorbed by a so3 hso3 buffer before the case absorbing the capacity of the buffer is destroyed?

15. ## chemistry

10.0 mL of 0.15M of sulfuric acid is titrated with 0.05M of sodium hydroxide. how many mL of sodium hydroxide solution are required to reach the equivalence point?

16. ## physiscs

A man runs with a speed of 6 m/s off a platform that is 10m above the water. How fast is he moving when he heats the water

17. ## chemistry

10.0 mL of 0.15M of sulfuric acid is titrated with 0.05M of sodium hydroxide. how many mL of sodium hydroxide solution are required to reach the equivalence point?

18. ## chemistry

A. ) A goodyear blimp typically contains 5400 m cubed of helium at an absolute pressure of 1.1*10^5 Pa. The temperature of the helium is 280 K. What is the mass (in kg) of the helium of the blimp? B. ) Estimate the spacing between the centers of

19. ## college chemistry

10.0 mL of 0.15M of sulfuric acid is titrated with 0.05M of sodium hydroxide. how many mL of sodium hydroxide solution are required to reach the equivalence point?

20. ## Trig math

how to split up using sum and difference identities cos (13pi/12) PLeaseeeeeeeeeee help!!! thanx a million

21. ## Physics

An object is solid throughout. When the object is completely submerged in ethanol alcohol., its apparent weight is 15.2 N. When completely submerged in water, its weight is 13.7 N. What is its volume? Steps please.. answer isnt really necessary

22. ## chemistry

If 380. mL of 0.4294 M aqueous CaBr2 and 250. mL of 0.5880 M aqueous SO42- are reacted stoichiometrically according to the equation, how many mol of CaBr2 remained? Al2(SO4)3(aq) + 3 CaBr2(aq) → 2 AlBr3(aq) + 3 CaSO4(s)

23. ## College Algebra

The population of the Earth is approximately 6 billion people and is growing at an annual rate of 1.9%. Assuming a Malthusian growth model, find the world population in 44 years.

24. ## chemestry

Consider once again the magnesium nitride addition reaction from the previous question. This time, suppose you start with 10.0 g N2 and an unlimited supply of Mg. What is the maximum number of MOLES of Mg3N2 that could be produced in this case?

25. ## chemestry

A student weighs out a 14.0 g sample of Fe(NO3)2, transfers it to a 500 mL volumetric flask, adds enough water to dissolve it and then adds water to the 500 mL tic mark. What is the molarity of iron(II) nitrate in the resulting solution?

26. ## chemestry

How many mL of a 0.217 M aqueous solution of ammonium fluoride, NH4F, must be taken to obtain 3.63 grams of the salt?

27. ## chemestry

How many moles of zinc acetate, Zn(CH3COO)2, are there in 163 mL of a 0.160 M solution?

28. ## chemestry

Based upon the previous two questions, consider the magnesium nitride addition reaction again. This time, suppose you start with 10.0 g of each reactant. What is the maximum number of MOLES of Mg3N2 that could be produced in this case? Remember that the

29. ## chemestry

Based upon the previous question, what is the THEORETICAL YIELD (in grams) of Mg3N2 if you start with 10.0 grams of each reactant? previous question:consider the magnesium nitride addition reaction again. This time, suppose you start with 10.0 g of each

30. ## chemestry

For the following reaction, 5.70 grams of hydrogen gas are mixed with excess nitrogen gas. The reaction yields 22.6 grams of ammonia. (1) What is the theoretical yield of ammonia ? ____ grams (2) What is the percent yield for this reaction ? ____ %

31. ## chemestry

For the following reaction, 6.84 grams of benzene (C6H6) are mixed with excess oxygen gas. Assume that the percent yield of carbon monoxide is 71.1 %. 2 C6H6 (l) + 9 O2 (g) 12 CO (g) + 6H2O (g) (1) What is the theoretical yield of carbon monoxide ? __grams

32. ## chemistry

Suppose that "element A" has a valence number of 3 and"element B has a valencenumber of 2. If the two numbers combine,then when writing the formula for resulting in the compound what subscript number will be given to element "B

33. ## geometry

find the measure of an angle that is supplementary to an angle of size 35 degrees, 1 inch, 51 inches

34. ## bussiness maths

using the graphical method solve the following linear programing problem maxmise objective function p=3x+y.subject to following constrains 6x+4y0

35. ## hist from 1945

measure the impact of the watergate scandal on public perseption of the government power.

36. ## probability

a circular dartboard of tedious 1 foot is at a distance of 20 feet from you.you throw a dart at it and it hits the dart board at some point q.what is the probability that q is closer to the center of the circle than the periphery ?

37. ## Physics

An elevator cable breaks when a 950 kg elevator is 23 m above a huge spring (k = 2.3×105 N/m) at the bottom of the shaft. (a)Calculate the work done by gravity on the elevator before it hits the spring. (b) Calculate the speed of the elevator just before

38. ## Math

I'm after understanding more than an answer but an answer would be greatly appreciated. The question reads as "On the answer sheet for this question is shown an x-y graph of the function [y(x)=x^2cos(3x)] Add to that same picture a rough sketch of the

39. ## Physics

Yocelyn is lifting a 10.0 kg bucket from a well. She wants the bucket to accelerate to the top of the well at 2.0m/s^2. How much force does she need to apply to the bucket through the rope in order to accelerate the bucket up to the surface?

40. ## Math

2. Find the LCM and GCD of (2y^2 - 3a^2)x + (2a^2 - 3x^2)y and (2a^2 + 3x^2)y + (2y^2 + 3a^2)x 3.Find m if the polynomials (x^2 - 2mx + 2) and (3x^2 - mx - 4) have a common linear factor 4. The ramainder on dividing 121^n - 25^n + 1900^n - (- 4)^n by 2000

41. ## English

I need to know if the following sentences are possible. Thank you very much! 1) Lake Titaca is situated (lies) between Bolivia and Peru and is the highest large lake in the world. Can I replace "highest large" with "largest"? What is the difference?

42. ## math

(x/2)+(x/4)+(x/8)=(x-(1/2)) variable domain {(5/7),(6/7),(4/8),(3/7),(2/7)

43. ## philosophy

Supply the missing premise or conclusion of the ff. enthymeme in such a way that the resulting syllogism is valid. Write the resulting syllogism in standard form and test it for validity using a Venn diagram. What things would you into account in

44. ## math

A car radiator has a 6-liter capacity. If the liquid in the radiators 40% antifreeze, how much liquid must be replaced with pure anitfreeze to bring the mixture up to a 50% solutions? If I told you the answer is 1 liter, in your own words, using complete

45. ## Science: Chemistry

A sample of a gas at 0.73 atm occupies a volume of 245 mL. If the temperature remains constant, what will be the new pressure if the volume increases to 633 mL?

46. ## chemistry

A sample of a gas occupies a volume of 1158 mL at 59ºC and 0.76 atm. What would be the new volume if temperature decreases to 40ºC and pressure increases to 1.40 atm?

47. ## chemistry

If 267 mL of O2, measured at STP, are obtained by the decomposition of the KClO3 in a 3.33 g mixture of KCl and KClO3, 2KClO3(s) --> 2KCl(s) + 3O2 What is the percent by mass of KClO3 in the mixture?

48. ## MATH

HOW TO SOLVE 2SIN+1

49. ## music

what are some of the occasions where you would sing. Like "happy birthday". i can't think of anything, so could you please just toss in some ideas. Can be spiritual/cultural. Anything really.

50. ## English

1. There are a lot of empty milk packs which we can recycle. 2. There are a lot of empty milk cartons which we can recycle. (Are both the same? Is 'milk carton' milk pack?

51. ## Statistics

A fair coin is tossed seven times. what is the probability of getting at least one tail?

52. ## Statistics

There are 6 cards numbered from 1 to 6. They are placed into a box, and then one is drawn and put back and then another card is drawn and put back. what is the probability that one of the cards was 5 if the sum of the two was 8?

53. ## chemistry

what is the balanced molecular equation and their physical state of each substance for: copper(II) sulfate and 10% sodium hydroxide?

54. ## chemistry

What is the balanced molecular equation and their physical state of each substance of barium chloride and 3 M sulfuric acid?

55. ## Chemistry

What is the balanced molecular equation and their physical state of each substance of silver(I) nitrate and 6 M hydrochloric acid?

what is genetic engineering?

57. ## english

i need to know if my sentences and grammar are clear, and if i have the correct topic sentence for each paragraph correct. 1. If something will cost more than what it is worth because, you do not have the money to buy it is you can purchase it by financing

58. ## english

make sentence of fence-post

59. ## Chemistry

how would you balance Al2(CO3)3--> A;2O3+CO2

60. ## Physics/Chemistry

few other questions. 1.) Suppose you expend 430 kilocalories during a long walk, how many liters of ice water at 0 degrees do you need to consume in order to use up the 430 kilocalories of metabolic energy. Stomach can hold 1 liter. 2. A person eats a

61. ## Chemistry

A. ) A goodyear blimp typically contains 5400 m cubed of helium at an absolute pressure of 1.1*10^5 Pa. The temperature of the helium is 280 K. What is the mass (in kg) of the helium of the blimp? B. ) Estimate the spacing between the centers of

62. ## physics

An object is solid throughout. When the object is completely submerged in ethanol alcohol., its apparent weight is 15.2 N. When completely submerged in water, its weight is 13.7 N. What is its volume? Steps please.. answer isnt really necessary

63. ## Financial and managerial accounting

1. Use the following data for questions 1 and 2.On March 12, 2005, Trio, Inc. acquired melting equipment for $37,000. The estimated life of the equipment is 7 years, with an estimated residual value of$9,000.Refer to above data. In its financial

64. ## math

The figure shown the chain drive of a bicycle. How far will the bicycle move if the pedals are rotated at 180°. Assume the radius of the bicycle wheel is 13.6 inches. There's a small circle w/a radius of 1.38 in and a large circle w/ 4.33 in.

65. ## college chemistry

10.0 mL of 0.15M of sulfuric acid is titrated with 0.05M of sodium hydroxide. how many mL of sodium hydroxide solution are required to reach the equivalence point?

66. ## english

write five sentences about birthday celebration

67. ## Chemistry 110

How many grams of Au2S can be obtained from 1017 mol of Au? The answer is 249. How did they get that?

68. ## math

i give you 9 tennis balls, all look identical in every way, 8 weigh exactly the same, one weighs an ounce or so more than the other 8. i give you a weight scale (like the scales of justice) and tell you that you can use the scale only twice and put as many

69. ## college

Considering early childhood stuttering, children in the majority of cases is what?

70. ## physics

Please help me A 2 kg rock is released from rest at a height of 29 m. Ignore air resistance and determine the kinetic energy, gravitational potential energy, and total mechanical energy at each of the following heights;20m 15m 9m

71. ## physics

A child wants to throw a rock into a puddle which is 20m away and 20m down a hill. If he can throw the rock at ana ngle of 60, what velocity does he need to release the rock at?

72. ## Chemisty

Nitric acid is abailable commercially at a concentration of 16M. What volume would you use to prepare 750 ml of a 0.20 M solution?

73. ## Chemistry

How many milliliters of a 0.75 M HCL solution do you need to obtain 0.0040 mol of HCL?

74. ## Chemisty

Kaochlor, a 10% (m/v) KCl solution, is an electrolyte solution. How many milliequivalents of K+ are in a 30 ml dose.

75. ## math

compare the annual percentage yield for three banks. Bank 1 offers an APR of 3.8% compounded daily; bank 2 offers an APR of 4.1% compounded monthly; bank 3 offers an APR of 4.5% compounded quarterly

76. ## physics

A man runs with a speed of 6 m/s off a platform that is 10m above the water. How fast is he moving when he heats the water

77. ## org chm

how many grams of KOH are needed to make 590 ml of a solution with a pH of 11.35?

78. ## Chemistry

A helium baloon has a volume of 28.9L, what is the mass of helium inside the ballon? what is the mass of the same volume of air it displaces? MM of air = 29.0g/mol, 25C (temperature) and 1 atm.

79. ## English

Can you check these sentences for me, please? Thank you. 1) The girl in the right margin of the text is wearing a light blue plaited mini-skirt over a pair of grey leggings. She is also wearing a pink sleeveless top over a purple vest and pink trainers.The

96. ## Physics

A typical coal-fired power plant burns 310 metric tons of coal every hour to generate 790 MW of electricity. 1 metric ton= 1000 kg. The density of coal is 1500 {\rm kg}/{\rm m}^{3} and its heat of combustion is 28 \;\rm MJ/kg. Assume that all heat is

97. ## Financial and managerial accounting

1. Use the following data for questions 1 and 2.On March 12, 2005, Trio, Inc. acquired melting equipment for $37,000. The estimated life of the equipment is 7 years, with an estimated residual value of$9,000.Refer to above data. In its financial

98. ## Math: Statistics

A study of elephants wishes to determine the average weight of a certain subspecies of elephants. The standard deviation of the population is 2,014 pounds. How many elephants need to be weighed so we can be 93% confident to be accurate within 325 pounds?

99. ## e

what is dramatic irony?

100. ## eng

i need to know if i underlined the correct topic sentence. if not can you see the topic with in the two paragraphs? 1. When purchasing a car, it can cost more than what it is worth because of not developing the money to buy it. Financing a car to purchase

101. ## Geography

What influence did western europe's geography have on WWI

102. ## English

Can you help me proofread the following paragraph and find nine misspelled or misused words and write them correctly? Planting a vegetable garden is a popular American hobby. It’s not ready that difficult. A gardening magazine or book can help you get

103. ## Precalculus

State the amplitude, period, and phase shift of the function. h(t)=-9cos(7t-Pie/5)

104. ## Physics

A stationary 25kg object is located on a table near the surface of the earth. The coefficient of kinetic friction between the surface is 0.30. Determind the acceleratin of the object.

105. ## Math

Factor 24 into primes.

106. ## Physics

A model airplane with a mass of 0.748 kg is tethered by a wire so that it flies in a circle 30.2 m in radius. The airplane engine provides a net thrust of 0.806 N perpendicular to the tethering wire. (b) Find the angular acceleration of the airplane when

107. ## statistics

A marketing research ﬁrm suspects that a particular product has higher name recognition among college graduates than among high school graduates. A sample from each population is selected, and each asked if they have heard of the product in question. A

108. ## physic

how do you find the acceleration for kinetic friction?

109. ## physics

A 2 kg rock is released from rest at a height of 29 m. Ignore air resistance and determine the kinetic energy, gravitational potential energy, and total mechanical energy at each of the following heights;20m 15m 9m * physics - bobpursley, Wednesday,

110. ## geography

bp oil spill - how long did it take to clear it up?, and can i have a real life story about it x oh and some history facts and figures please x thank you so so much x

111. ## chemistry

how do I calculate what temperature is needed to heat 52 grams of ethane to occupy 1200ml?

112. ## british literature

Describe each part of the plot of Alfred,Lord Tennyson's poem THE LADY OF SHALOTT.

113. ## Accounting

Need help with this bank reconciliation...this is actually for a job and I am forgetting everything about accounting because I am nervous. BANK RECONCILATION ============================================== On Aug 14th, One of our Partner's ( Compuville )

114. ## british literature

Analyze Robert Browning's poem,"My Last Duchess" using the criteria for "good poetry" set forth by Elizabeth Barrett Browning in Aurora Leigh.

115. ## physics

A truck increases its speed from 8 m/s to 28 m/s over a distance of 120 m? How long does this take? Assume that the acceleration is constant

116. ## british literature

Explain the theme of Robert Browning's poem "Love Among the Ruins."

117. ## british literature

Explain what we learn about Captain Brown from the narrator of "Our Society at Cranford."

118. ## precal

Find the value of sec theta for angle theta in standard position if the point at (–2, –4) lies on its terminal side. If 0° lessthanorequalto x lessthanorequalto 360°, solve the equation sec x = –2. The terminal side of an angle theta in standard

119. ## british literature

Analyze the characterization of Sherlock Holmes. A:How do we learn about him? B: What do we learn about him?

120. ## british literature

In Matthew Arnolds' poem, "Dover Beach," what does the speaker have in common with Sophocles?

121. ## geography

how long did it take to clear up the bp oil spill? i have searched google and cannot find any relevant answers x thank you x

122. ## british literature

What is Gerald Manley Hopkins praising? Explain why.

123. ## british literature

Summerize the denouement of THE IMPORTANCE of BEING EARNEST.

The following data are weights of hummingbirds (in grams) randomly selected from a population. Which histogram best portrays this data set? (You may want to use your TI-83 to help you.)

125. ## Calculus 2 / Physics

An underground tank full of water has the following shape 1) hemisphere of radius 5 m at the bottom 2) a cylinder of radius 5 m and height 10 m in the middle 3) a circular cone with base radius 5 and height 4 m at the top The top of the tan is 2 m below

126. ## geography

how many rig workers survived the bp oil spill explosion?

127. ## calculus 2 or physics

An underground tank full of water has the following shape 1) hemisphere of radius 5 m at the bottom 2) a cylinder of radius 5 m and height 10 m in the middle 3) a circular cone with base radius 5 and height 4 m at the top The top of the tan is 2 m below

128. ## chemistry

A pH glass/calomel electrode was found to develop a potential of -0.0390 V when used with buffer of pH 5.52. With an unknown solution, the potential was -0.360 V. Calculate the pH of the unknown solution

129. ## physics

An object has a total energy that is two times its rest energy. What is its speed? Give answer in c. what equation do i use to solve this? step by step anyone?

Most of the enzymes of the Calvin cycle also function in other metabolic pathways. This should not be a surprising finding, because ____.

131. ## Fine Art

17. During _______, the historian is concerned with the finding out if the artwork represents a particular style of art. a. analysis b. criticism c. interpretation d. inspiration ? 20. Effective organization of the elements of art is important when looking

132. ## Chem 141

Write the three thermochemical equations needed to calculate the delta H for the below reaction.? 2Mg(s) + O2(g) --------> 2 MgO(s) delta H rxn = ? (Include delta H values in kJ for each reaction)

A man asks for a loan for $5,000 for 14 days. He receives the loan plus$45 in interest. What annual interest did the man pay. How much would the man need to repay at the end of two months if he borrowed $5ooo with the same rules and the same annual asked by geri 134. ## Trigonometry Prove that 1/sin theta-tan theta and - 1/cos theta = 1/cos theta and + 1/sec theta+tan theta asked by Rahul 135. ## geometry find CD. ab=bd=2x +3 ac=4x+5 bc=3x+11 round to the nearest tenth asked by Anonymous 136. ## Javascript Can you check my code and tell me why the prompts are not showing up on the webpage: Homework 8 I like the color purple. asked by Anonymous 137. ## Organic Chemistry The separation of a mixture of benzoic acid and benzoin in dichloromethane into its pure compounds by a combination of solvent extraction , distillation and recrystallization. Why is carbon dioxide evolved when the organic solution is shaken with sodium asked by Davia 138. ## HEALTH INFORMATION SYSTEMS What are some of the advantages and disadvantages in using PDAs to facilitate patient care? asked by keisha 139. ## Fine Art What are three components of aesthetics? Thanks -MC asked by mysterychicken 140. ## Physics The motion of material particles in P-waves is A. Clockwise circles as seen from the side B. Counter-clockwise circles as seen from the side C. Parallel to the propagation direction D. Perpendicular to the propagation direction asked by Bethany 141. ## english in the story "civil Peace" jonathan iwegbu reiles on the proverb "nothing puzzles god." what significance does the proverb hold for him? does it provide an explanation for events, or is its meaning more complex? asked by denae 142. ## world geography what is the diffrence between a cooperative community,called a moshav,and a collective community,called a kibbutz? asked by alea 143. ## PLEASE HELP/LINEAR EQUATION Is 7y+2x = 11 a linear equation why? asked by AMY 144. ## US History Describe the concept of Popular Sovereignty as it was used in the years leading up to the civil war. Unsure about this question, don't know exactly what it's about. asked by anthony 145. ## English what are some good quotes about life? asked by Rebecca 146. ## US History Why was President Johnson impeached? Was it the right action to take?? asked by anthony 147. ## chemistry what is the delta u when 1.00mol of liquid water vaporizes @ 100C? The heat of the vaporization, delta h, of water @ 100C is 40.66kj/mol asked by yesenia 148. ## Earth science what are the causes of groundwater contamination? How can you stop the contamination? asked by SHelly 149. ## math I Have to solve for an equation 6 asked by Anonymous 150. ## physics Three uniform spheres are located at the corners of an equilateral triangle. Each side of the triangle has a length of 3.30 m. Two of the spheres have a mass of 3.10 kg each. The third sphere (mass unknown) is released from rest. Considering only the asked by Ashley 151. ## consumer math You are debating about whether to buy a new computer for$800.00 or a refurbished computer with the same equipment for $640.00. If a savings account earns 4.5% APR interest, how much do you really save with a refurbished computer if you put the difference asked by Anonymous 152. ## operating systems what are some examples of a computer system in an unsafe state and describe how the process could be complete without causing a deadlock. asked by katherine 153. ## short story, part 2 an auther's purpose in using rhetoric is to? a. create a certain effect for the reader b. present facts as they realy are c. provide hints as to whats going to happen d. separate realism from idealism asked by tom 154. ## Algebra II I need to rewrite this with rational exponents. (√3mn)^9 I have no clue of what I need to do. Can someone please take me step by step? asked by Daniel 155. ## philosophy Supply the missing premise or conclusion of the ff. enthymeme in such a way that the resulting syllogism is valid. Write the resulting syllogism in standard form and test it for validity using a Venn diagram. What things would you take into account in asked by Claudia 156. ## Math Jen and Heather went to lunch. When the bill came, Jen discovered she had only$6. Luckily, Heather had enough money to pay the other part, or 3/5 of the bill. How much did Heather pay and how much was the total bill? Please explain how you got these

How can you determine if you are using a two tailed test vs a one tailed test? For example, for the below, which test would I use? Based on this data, at α =.01, can we conclude that the proportion of democrats who favor “junk food" tax is more than 5%

158. ## chemistry

0.35 grams of an unknown solid containing magnesium hydroxide is combined with 50 mL of 0.25M nitric acid. If 34.5mL of 0.1 NaOH was required to reach an endpoint, determine the concentration of magnesium hydroxide inthe sample.

198. ## Physics

A weather ballon is designed to expand to a maximum radius of 20 m at its working altitude, where the air pressure is 0.030 atm and the temperature is 200 K. If the ballon is filled at atmospheric pressure and 300 K, what is its radius at liftoff?

Find the lowest common denominator of the rational expression: 1/m = (m-34) / 2m squared

200. ## US History

Describe the greatest foreign policy victory for the Carter Administration. I need examples.

201. ## geometry

draw an acute scalene triangle ABC in the center of your paper with sides approximately 8cm 10cm and 16cm

A sled of mass 50 kg is pulled along a snow-covered, flat surface with a force of 200 N. the friction force acting on the sled is 49 N. what is the acceleration?

203. ## chemistry

If I make an ice pack with 750mL of water, what mass of ammonium chloride must I include to get the temperature to drop from room temperature (20 degrees C) to 5 degrees C?

204. ## math

which is greater half pennies or 0.05 how do you know

205. ## Algebra

For this problem, tell whether each relationship is a direct variation. Explain. x | -3 | -6 | -9 | y | 18 | 36 | 54 | My teacher didn't really explain direct variation very well, but i did catch that you put x over y. (Hopefully this helps)

206. ## Algebra

This is question 2 about direct variation For this problem, tell whether each relationship is a direct variation. Explain. x | 8 | 0 | -5 | y | 13 | 5 | 0 |

207. ## Algebra

This is my third question about direct variation. For this problem, tell whether each relationship is a direct variation. Explain. x | -1 | 5 | 8 | y | -1.5 | 7.5 | 12 |

208. ## Algebra

This is about direct variation. The area a painter can paint varies directly with the amount of time he works. One morninig, he painted 204 ft² between 8 a.m. and 12:15 PM. Write a direct variation equation to describe the area y covered in x hours. The

209. ## vocab

what is a metaphor, and personification

217. ## Science

When served at 200 km/h (124 mph), what is the equivalent weight exerted on the tennis ball?

218. ## English

I really need you to check these sentences for me. I tried to rephrase the beginning of chapter five of Shelley's Frankenstein. 1) The scene takes place during a dreary night. It is one in the morning and the rain taps dismally (I need a synonym) against

219. ## College Physics

An amusement park mirror shows anyone who stands 2.5 meters in front of it an upright image two times the person's height. What is the mirror's radius of curvature?

220. ## math

How do I find the area of a triangle?

221. ## math

Three rectangles have exactly the same area. The dimensions of each rectangle (as length and width) are a and b; a – 3 and b + 2; and a + 3 and b – 1. Find the area of the rectangles.

222. ## math

Mrs. Rossi wrote the following clus for a mystery 4-digit number. .The tens digit is twice the one digit .The hundreds digit is twice the ones digit. .The ones digit is 3. .The sum of the digits is 19. What is the mystery number? show the work.

223. ## math

Three rectangles have exactly the same area. The dimensions of each rectangle (as length and width) are a and b; a – 3 and b + 2; and a + 3 and b – 1. Find the area of the rectangles.

224. ## us history

in its signed petition to the king, which rights did the rights did the tfirst continental congress claim colonists had?

225. ## math

A painter leans a ladder against a vertical wall. The top of the ladder is 7 meters above the ground. When the bottom of the ladder is moved 1 meter farther away from the wall, the top of the ladder is 5 meters above the ground. What is the length of the

226. ## Chemistry

How do you balance: iron(II0 oxide+ oxygen--> iron(III) oxide

227. ## English

I forgot to include the following sentences. I really hope you can have a look at them, too. 1)Now the reality with which he is confronted fills him with horror and disgust. 2) He is disgusted and horrified by his creation- He rushes from the room and

228. ## C++

I have no idea how to construct this program. Any help is appreciated. Thank you. In a population, the birth rate is the percentage increase of the population due to births and the death rate is the percentage decrease of the population due to deaths.

229. ## social studies

Just a few more vaction days left. I sailed between Corscia and Sardinia to this Mediterranean port in the second-largest country in Western Europe. I am about 75 miles south of the French borde, but I am not in France

230. ## Carnita

What is John G. Roberts background, before being nominated by President Bush? Why he chosen for the Court, and by whom

231. ## Math

Please help! x-2y+z=7 2x+y-z=0 3x+2y-2z=-2 a. Solve the above system of equations using Gaussian Elimination or Gauss-Jordan Elimination. You must show row operations. b. Solve the above system of equations using Cramer's Rule.

232. ## Math

A candy bowl contained 723 candies. Some of the candies were red and the rest were green. There were twice as many green candies as red candies. How many red candies were in the candy bowl? Write an equation to solve this problem.

233. ## Chemistry

What is the minimum amount of 1.75 m of HCL necessary to produce 28.5 L of H2 at stp? EQUATION IS AS FOLLOWS: Mg+2HCL->>MgCl2+H2

234. ## physics

A 1000 kilogram car traveling at 25 mph hits a 60 kg person. How much force is exerted on the person?

235. ## Algebra HELP

h(x)= 3x^(5) + 2x^(4) + 15x^(3) + 10x^(2) - 528x - 352 for this equation how would I know to use the square root of 11 in synthetic division to be a factor? I used the p / q list but I did not get sqt root of 11 as a possible factor. could someone help

236. ## social studies

In what ways did Greek culture develop differently from Italian culture after the division of the Roman Empire

237. ## social sgtudies

Can anyone tell me what happened when Prince Shotoku of Japan died?

can u simpilify 24 radical 152?

239. ## Math

I need to write the specified ratin as a simplified fraction. A certai lake is 1100 ft deep. A nearby lake is 300 feet deep. Write the ratio of te fist lake's depth to the second lake's depth.

240. ## social studies

Is change in a student's appearance an adequate way to evaluate the success of Native American boarding schools?

241. ## math

Finding the area or a triangle A=1/2bh A= 1/2 x 13.6 x 7

242. ## physics

A 1000 kilogram car traveling at 25 mph hits a 60 kg person. How much force is exerted on the person?

243. ## Math

a long distance phone company charges $3 for a phone call plus$0.75 for each minute of the call. What fuction does this situation give rise to? Find the formula and make a table for this function.

244. ## physics

You are watching an archery tournament when you start wondering how fast an arrow is shot from the bow. Remembering your physics, you ask one of the archers to shoot an arrow parallel to the ground. Unfortunately the archer stands on an elevated platform

366. ## Chemistry

Why are the alkali and alkaline earth metals more reactive than other elements on the periodic table?

367. ## Chemistry

Explain why the Noble Gases are unreactive

368. ## Physics

A charged particle moves into a region of uniform magnetic field B, goes through half a circle, and then exits that region. The particle is either a proton or an electron (you must decide which). It spends 155 ns in the region. a) What is the magnitude of

369. ## chemistry

CO (g) + Cl2 (g) ↔ COCl2 (g In one experiment, 0.93 bar of CO was combined with 1.01 bars of Cl¬2 in a reaction vessel at 700K. After the system reached equilibrium, the total pressure was 1.24 bars. Calculate Kp0 for the system.

370. ## math 2

in what simple interest rate will 7200 triple itself if invested for 10 yrs.

371. ## Chemistry

Why would Magnesium (Mg) be unable to combine with Chlorine (Cl) to make a compound?

372. ## chemistry

Wrtie the equilibrium constant expression for the reaction of NH3 with water. the OH- concentration of .050 M ammonia, NH3, is 9.5 x 10^-4 M

373. ## Chemistry

Calculate the H3O+ concentration and pH of a carbonated beverage that is .10 M in dissolved CO2- (Essentially all of the H3O+ comes from the first stage of dissociation, CO2 + 2H2O = H3O^+ + HCO3-, for which K1 = 4.4 x 10^-7)

374. ## chemistry

120 ml of oxygen gas was collected over water at a barometric pressure of 732.0 torr and 23 degrees celsius. what is the partial pressure of the oxygen?

375. ## Math

A painter leans a ladder against a vertical wall. The top of the ladder is 7 meters above the ground. When the bottom of the ladder is moved 1 meter farther away from the wall, the top of the ladder is 5 meters above the ground. What is the length of the

376. ## Math

Three rectangles have exactly the same area. The dimensions of each rectangle (as length and width) are a and b; a – 3 and b + 2; and a + 3 and b – 1. Find the area of the rectangles.

377. ## us history

A great deal of america's success can be traced to the impacted of inventions. Show how several of these developments helped the country to grow.

378. ## math

y=-5x+2 make a table

379. ## 5 th grade English

I need help with these words it;s Analogies. 1.chair is o tableas stool is to ______? 2.hurry is to run as stroll is to _____? next is antonyms opposite of Enormous____ and release____? please !!help me i can't find it thanks!

380. ## Physics

A copper wire has a resistance of 24 Ω at 20°C. An aluminum wire has three times the length and twice the radius of the copper wire. The resistivity of copper is 0.6 times that of aluminum. Both Al and Cu have temperature coefficients of resistivity of

381. ## english

i am looking for the main topic in this paragraph would it be In society today more and more people are making the wrong choices to protect their wellbeing and overall health. In society today more and more people are making the wrong choices to protect

382. ## Math

how to solve 2(6a+7)=38

383. ## physical science

decribe an experiment you could perform to determine the average speed of a toy car rolling down an incline

384. ## chemistry

Household hydrogen peroxide is an aqueous solution containing 3.0% hydrogen peroxide by mass. What is the molarity of this solution? (Assume a density of 1.01g/ml .)

385. ## british literature

Analyze Robert Browning's poem, "My Last Duchess" using the criteria for "good poetry" set forth by Elizabeth Barrett Browning in AURORA LEIGH. Please point me in the right direction.

386. ## british literature

Explain the theme of Robert Browning's poem "Love Among the Ruins." Please point me in the right direction.

387. ## physics

what is the symbolic expression for the wavelength ë of a photon in terms of its energy E, Planck's constant h, and the speed of light c.