# Questions Asked in September 2010

## Most Popular Questions of September 2010

1. ### english/CHECK

My answers 1) Assail 2)Banal 3)mercenary 4)allusion 5)Taint 6) appease 7)Arbitrary 8)syndrome 9)altruistic 10)euphemism MY OLDER BROTHERS MARK HAS NO LUCK WITH WOMEN, HE GOES INTO ONE OF TWO STYLES OF CONVERSATION. THE FIRST IS TO (1) TAINT HER WITH A

asked by jae on September 1, 2010

Thomas Kratzer is the purchasing manager for the headquarters of a large insurance company chain with a central inventory operation. Thomas’s fastest moving inventory item has a demand of 6000 units per year. The cost of each unit is $100.00, and the asked by Jackson on September 20, 2010 3. ### PHY Two snowcats tow a housing unit to a new location at McMurdo Base, Antarctica, as shown in Figure 4-46. The sum of the forces A and B exerted on the unit by the horizontal cables is parallel to the line L, and FA = 4300 N. Determine FB and the magnitude of asked by AMI on September 13, 2010 4. ### chem class which of the following has the highest boiling point? a)C2Cl6 b)C2Br6 c)C2H6 d)C2F6 e)C2I6 i know its e, but why is that the answer? are all questions about boiling points similar? or they they have to do with intermolecular forces? i have a test soon on asked by RiChy on September 16, 2010 5. ### physics The earth has a radius of 6380 km and turns around once on its axis in 24 h. 1)What is the radial acceleration of an object at the earth's equator? Give your answer in m/s^2 2) What is the radial acceleration of an object at the earth's equator? Give your asked by Ami on September 9, 2010 6. ### statistics An IRS auditor randomly selects 3 tax returns from 58 returns of which 8 contain errors. What is the probability that she selects none of those containing errors? asked by Kerri on September 19, 2010 7. ### english Use at least five adverbs and five adjectives to write a 150- to 300-word review of a movie, sporting event, musical performance, or television show. · Bold each adverb. · Underline each adjective. · Compare the event to one or more similar events. When asked by dazzy on September 15, 2010 8. ### chemistry 20) The ideal value of i (van't Hoff factor) for (NH4)3PO4. A) 2 B) 5 C) 4 D) 3 E) 1 I know the answer but how are problems like this figured out? asked by Jessie on September 26, 2010 9. ### english HELP PLEASE!!?? Use at least five adverbs and five adjectives to write a brief review of a movie, sporting event, musical performance, or television show. Bold each adverb. Underline each adjective. Compare the event to one or more similar events. When asked by smb on September 8, 2010 10. ### physics The speed of a nerve impulse in the human body is about 100 m/s. If you accidentally stub you toe in the dark, estimate the time it takes the nerve impulse to travel to your brain. (Assume that you are approximately 1.8 m tall and that the nerve impulse asked by jer on September 14, 2010 11. ### 9th grade science Describe the ways in which the earth's spheres overlap each other? asked by peyton on September 8, 2010 12. ### 12th grade The length of a rectangular floor is 2 feet more than its width. The area of the floor is 168 square feet. Kim wants to use a rug in the middle of the room and leave a 2 foot border of the floor visible on all sides. What should the length (the longer asked by Anonymous on September 24, 2010 13. ### science in a symbiotic relationship a) both organisms always benefit b) both organisms are harmed c) both organisms never benefit d) at least one organism always benefits e) neither organisms is affected d asked by pam on September 21, 2010 14. ### chemistry Radio waves travel at the speed of light which is 3.00 x 108 m/s. How many minutes does it take for a radio message to reach Earth from Saturn if Saturn is 7.9 x 108 km from Earth? asked by ashley on September 12, 2010 15. ### Chemistry A 0.25g sample of a pretzel is burned. The heat it gives of is used to heat 50.g of water from 18 to 42 degrees C. what is the caloric value of the pretzel in kcal/g? Can someone walk me through step by step? asked by Jason on September 18, 2010 16. ### science A 0.513 M solution of a weak base has a pH of 11.4. What is the Kb of the base? asked by Martha on September 9, 2010 17. ### calculus Use Newton's method to approximate a root of the equation 3sin(x)=x as follows. Let x1=1 be the initial approximation. The second approximation x2 is and the third approximation x3 is asked by kwack on September 7, 2010 18. ### chemistry Calculate the expansion work done when 50 g of water is electrolysed under constant pressure at 25C asked by Dana on September 5, 2010 19. ### Chemistry 175g of water was heated fro 15 to 88 degrees C. how many kilocalories were absorbed by the water? I got 94.5 kcal. Is this right? asked by Jason on September 18, 2010 20. ### english Four score and seven years ago our fathers brought forth on this continent, a new nation, conceived in liberty, and dedicated to the proposition that all men are created equal. In this sentence i need to know what part of speech these words or phrases are: asked by jesse on September 30, 2010 21. ### Mole fraction of a vapor pressure? If 0.380 mol of a nonvolatile nonelectrolyte are dissolved in 3.00 mol of water, what is the vapor pressure P(H2O) of the resulting solution? The vapor pressure of pure water is 23.8 torr at 25 C. I got this answer correct: 21.1 torr A solution is composed asked by Sar on September 2, 2010 22. ### Chemistry The heat of fusion of water is 6.01 kJ/mol. The heat capacity of liquid water is 75.3 J/mol • K. The conversion of 50.0 g of ice at 0.00°C to liquid water at 22.0°C requires how much kJ of heat? Can someone explain how to do this, I tried but keep asked by Anonymous on September 20, 2010 23. ### chemistry sodium reacts completely with 0.142kg of chlorine, forming 234g of sodium chloride. What mass of sodium reacted? I know that for chemical changes the amounts should end up being equal, but I don't know how to set up the problem. asked by will on September 17, 2010 24. ### math In a certain town, 25% of people commute to work by bicycle. If a person is selected randomly from the town, what are the odds against selecting someone who commutes by bibycle? A). 3:1 B). 3:4 C). 1:3 D). 4:1 asked by Sarah on September 18, 2010 25. ### chem The concentration (M) of HCl in a solution prepared by dissolving 5.5 g of HCl in 200 g of C2H6O is ?????? M. The density of the solution is 0.79 g/mL. A) 21 B) 0.93 C) 6.0 × 10-4 D) 1.72 E) 0.58 asked by benju on September 26, 2010 26. ### Chemistry 4NH3+5O2 = 4NO + 6 H20 If a container were to have 10 molecules of O2 and 10 molecules of NH3, initially, how many total molecules (reactants plus products) would be present in the container after this reaction goes to completion? asked by Margaret on September 17, 2010 27. ### physics Mary needs to row her boat across a 120 m -wide river that is flowing to the east at a speed of 1.4 m/s. Mary can row the boat with a speed of 2.0 m relative to the water. 1. How long does it take Mary to reach the opposite river bank ? 2.If Mary rows asked by Melissa on September 15, 2010 28. ### chemistry A certain element forms an ion with 54 electrons and a charge of +2. Identify the element. asked by Mely on September 5, 2010 29. ### physics The two angled ropes used to support the crate in the figure below an withstand a maximum tension of 1300 N before they break. The left angle is 30dregres, and the right angle is 45degrees. What is the largest mass the ropes can support? m=? asked by andrea on September 20, 2010 30. ### algebra Are the following true or false? 1. The difference of two natural numbers is always a natural number. 2. The sum of two natural numbers is always a natural number. 3. The quotient of two natural numbers is always a natural number. 4. The difference of two asked by Bill on September 7, 2010 31. ### english/check My answers 1.Altruistic 2. Mercenary 3. Assailed 4. Appease 5.syndrome 6. Taint 7.Arbitrary 8.allusion 9.Euphemism 10.Banal 1-2 _ people tend to place the public welfare above their own self-interest. In contrast,_ people will exploit anyone for a profit asked by jae on September 1, 2010 32. ### physiscs a pendulum of the length L is suspended from the ceiling of an elevator. When the elevator is at rest , the period of the pendulum is T. In instant when the pendulum reaches its highest position the elevator starts the free fall. What is the period of the asked by Ray on September 21, 2010 33. ### Physics A sled starts from rest at the top of a hill and slides down with a constant acceleration. At some later time it is 14.4 m from the top; 2.00 s after that it is 25.6 m from the top, 2.00 s later 40.0 m from the top, and 2.00 s later it is 57.6 m from the asked by Ceci on September 1, 2010 34. ### Statistics A group of statistics students decided to conduct a survey at their university to find the average (mean) amount of time students spent studying per week. Assuming a standard deviation of 3 hours, what is the required sample size if the error should be asked by Robin on September 5, 2010 35. ### college chemistry How many total moles of ions are released when the following sample dissolves completely in water: 5.15x10^-3 g Ca(NO3)2 asked by KELLY on September 26, 2010 36. ### College Chemistry Balance this equations for redox reactions in basic solution. Fe(OH)3(s) + OCl- ¨ FeO42- + Cl- asked by Marissa on September 23, 2010 37. ### Chemistry A mixture contains only NaCl and Al2(SO4)3. A 1.45-g sample of the mixture is dissolved in water and an excess of NaOH is added, producing a precipitate of Al(OH)3. The precipitate is filtered, dried, and weighed. The mass of the precipitate is 0.107 g. asked by Melissa on September 18, 2010 38. ### Elements of Psychology I need help on these questions. My answers have the < by them 1. In a typical neuron, sheaths of fatty tissue called _______ surround the axon. A. terminals C. synapse B. dendrites D. myelin asked by Natasha on September 16, 2010 39. ### chemistry 65.0 mL of water is heated to its boiling point. How much heat in Kj is required to vaporize it? (Assume a density of 1.00 g/mL) asked by jessa on September 10, 2010 40. ### Grade 9 science: ecology What chemical process(es) do producers and consumers share? What chemical process(es) do they not share? asked by Rebecca. on September 20, 2010 41. ### physics a cheetah can accelerate from rest to 24 m/s in 2.0 s . Assuming the acceleration is constant over the time interval, a)what is the magnitude of the acceleration of the cheetah? b) what is the distance traveled by the cheetah in these 2.0 s.? c) a runner asked by tatiana on September 21, 2010 42. ### chem What is the freezing point (°C) of a solution prepared by dissolving 11.3 g of Ca(NO3)2 (formula weight = 164 g/mol) in 115 g of water? The molal freezing point depression constant for water is 1.86 °C/m. whats wrong with my answer: molal: 0.069 moles asked by jessie on September 26, 2010 43. ### Physics A chain composed of four identical links is suspended by a rope and does not move. How many force vectors would be drawn on the free body diagram of each link and which direction would they point? My answer: ---------- FIRST LINK (top): Upward force from asked by Stanley on September 21, 2010 44. ### math Assume that the committee consists of 4 Republicans and 5 Democrats. A subcommittee consisting of 5 people is to be selected. How many such subcommittees are possible if each subcommittee must contain at least 1 and no more than 2 Republicans? asked by Shawna on September 15, 2010 45. ### physics a 1500 kg car accelerates from 0 to 25 m/s in 7.0 s. What is the average power delivered to the engine? asked by shnook on September 26, 2010 46. ### Chemistry net ionic equation of Na2CO3+2HC2H3O2-->CO2+h2o+2Na2H3O2 asked by Emily on September 1, 2010 47. ### chemistry Is diamond a pure substance, a homogeneous mixture or a heterogeneous mixture???? asked by person on September 4, 2010 48. ### chem Which of the following elements would you expect to gain electrons in chemical changes? (Select all that apply.) gold chromium zirconium nitrogen iodine asked by Sara on September 21, 2010 49. ### Physics A bob of mass = 0.250 is suspended from a fixed point with a massless string of length = 23.0 . You will investigate the motion in which the string traces a conical surface with half-angle = 25.0. What tangential speed must the bob have so that it moves in asked by tim on September 30, 2010 50. ### chemistry While in Europe, if you drive 125 km per day, how much money would you spend on gas in one week if gas costs 1.10 euros per liter and your car's gas mileage is 39.0 mi/gal? Assume that 1euro= 1.26; dollars. asked by Mely on September 4, 2010 51. ### PHYSICS A rock is dropped from rest into a well. The sound of the splash is heard 2.40 s after the rock is released from rest. (a) How far below the top of the well is the surface of the water? The speed of sound in air (at the ambient temperature) is 336 m/s. asked by JULIET on September 24, 2010 52. ### psy Surveys show that people who use calorie information to decide which foods to eat consume on average 100 calories less than they would if they didn’t check calorie information before eating. Strangely though, people who use calorie information in this asked by Cat on September 25, 2010 53. ### chem The concentration of a benzene solution prepared by mixing 12.0 g C6H6 with 38.0 g CCl4 is__________ molal. asked by jessie on September 15, 2010 54. ### College Chemistry In this lab: we demonstrated the method of evaporation of a saturated sodium chloride solution. The following question ask: 1) why is sodium chloride chosen for the solute? 2)Suggest reasons why the following were not chosen for the solute? a)Calcium asked by Tim on September 4, 2010 55. ### psy Political science professor: Many people insist that the Internet is revolutionizing the political process. They argue that Internet debates and online political polls and chat rooms give people greater access to political information. And they’re right asked by Cat on September 25, 2010 56. ### chemistry Phosphoric acid reacts with magnesium carbonate to produce? When you predict the products and write a balanced equation the coefficient of phosphoric acid is a.1 b.2 c.3 d.6 e.4 asked by Mely on September 5, 2010 57. ### physics If a car rolls gently(vo=0) off a vertical cliff, how long does it take to reach 85km/h? asked by john on September 13, 2010 58. ### MATH WRITE EACH ADDITION VERTICALLY. DECIDE WHICH NEW GROUPS YOU WILL MAKE. THEN, ADD TO SEE IF YOU WERE CORRECT. asked by BYNN on September 13, 2010 59. ### cary collage "A 2.5-kg block slides down a 25 degree inclined plane with constant acceleration. The block starts from rest at the top. At the bottom, its velocity reaches 0.65 m/s. The length of the incline is 1.6m. a) What is the acceleration of the block? b) What is asked by sahan on September 27, 2010 60. ### Stats Exercise 6-8 The Downtown Parking Authority of Tampa, Florida, reported the following information for a sample of 235 customers on the number of hours cars are parked and the amount they are charged. Number of Hours Frequency Amount Charged 1 18$3 2 33 7

asked by Nicole on September 28, 2010

what does the statment mean. The properties of salts are different from the properties of the elements that go into making them mean?

62. ### calculus

If 2100 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. Volume = cubic centimeters.

asked by kwack on September 7, 2010
63. ### Chem

f 147 grams of FeS2 is allowed to react with 88 grams of O2 according to the following unbalanced equation, how many grams of Fe2O3 are produced? FeS2 + O2 → Fe2O3 + SO2

asked by Valarie on September 19, 2010
64. ### chemistry

Write formulas for the compounds that form from {\rm Rb} and each of the following polyatomic ion: {\rm NO}_{3}^{-}, {\rm SO}_{4}^{2-}, {\rm PO}_{4}^{3-}.

asked by Anonymous on September 13, 2010

Which of the following functions f has a removable discontinuity at a? If the discontinuity is removable, find a function g that agrees with f for x a and is continuous at a. (If the discontinuity is not removable, enter NONE.) 1. f(x)= (x^4-1)/(x-1), a=1

asked by Terry on September 3, 2010
66. ### physics

At a picnic, there is a contest in which hoses are used to shoot water at a beach ball from three directions. As a result, three forces act on the ball, F1, F2, and F3 (see drawing). The magitudes of 1 and 2 are F1 = 55.0 newtons and F2 = 95.0 newtons.

asked by Jane on September 12, 2010
67. ### chemistry

what is the density of a solid object with a mass of 1.65 lb and a volume of 170ml?

asked by sam on September 10, 2010
68. ### Biochemistry

What is the net ionic equation for Phosphate ion + ammonium molybdate in the presence of nitric acid?

asked by Help on September 27, 2010
69. ### Astronomy

Which of these gasses are outgased by our volcanic eruptions? a)oxygen, methane,ammonia b)carbon dioxide, water vapor, oxygen c)ammonia, water vapor, oxygen d) water vapor, methane, carbon dioxide e)helium, carbon dioxide, methane

asked by Jerrika on September 26, 2010
70. ### psy

1. Barney: Last winter, I slipped on the outside stairs of PineTree Café and broke my leg. My fall was caused by ice on the stairs that the restaurant failed to remove. Since the restaurant clearly did not provide a safe atmosphere for its customers, I am

asked by Cat on September 25, 2010
71. ### Chemistry

what is the difference between a basic bunsen burner and the tirrll burner

asked by christine on September 24, 2010
72. ### chemistry

If 30.0 mL of 0.150 M CaC12 is added to 15.0 mL of 0.100 M AgNO3, what is the mass in grams of AgC1 precipitate?

asked by Michael on September 29, 2010
73. ### Physics 1

A rock is thrown straight upward with an initial velocity of 9.6 m/s in a location where the acceleration due to gravity has a magnitude of 9.81 m/s2. To what height does it rise? Help meh please.

asked by Aisumi on September 29, 2010
74. ### Physics

Two 10 cm diameter charged rings face each other, 20 cm apart. The left ring is charged to -20 nC and the right ring is charged to +20 nC. What is the force on a 1.2 nC charge placed at the midpoint? I have already calculated the electric field between the

asked by David D. on September 3, 2010
75. ### Chemistry

A small hole in the wing of a space shuttle requires a 12.8cm^2 patch. What is the patch's area in square kilometers (km^2)? if the patching material costs NASA 3.21/in^2, what is the cost of the patch?

asked by Lanise on September 6, 2010
76. ### Science

When a net torque is applied to a rigid object it always produces a 1. constant acceleration 2. rotational equilibrium 3. constant angular velocity 4. constant angular momentum 5. change in angular velocity

asked by Franco Krause on September 20, 2010
77. ### Chemistry

How would you prepare 1L of a .050 M phosphate buffer at pH 7.5 using crystalline K2HPO4 and a solution of 1 M HCl? pka of H2PO4 = 7.2

asked by HELP!!! on September 19, 2010
78. ### Research and Statistics

2. The results of a recent survey indicate that the average new car costs $23,000, with a standard deviation of$3,500. The price of cars is normally distributed. a. What is a Z score for a car with a price of \$ 33,000? 9.415000 b. What is a Z score for a

asked by Moreen on September 11, 2010

Evaluate u + xy, for u = 18, x = 10, and y = 8. a. 188 b. 224 c. 98 d. 36

asked by Denis on September 20, 2010
80. ### Physics

A cheetah can maintain its maximum speed of 120 km/hr for 38 seconds. What minimum distance must a gazelle running 74 km/hr be ahead of the cheetah to escape? A) 417.2 m B) 3778 m C) 624.3 m D) 485.6 m E) 1748 m

asked by Jon on September 23, 2010
81. ### math

in which quadraints are the signs of the first and second coordinate the same? the signs of the first and second coordinate are always the same in quadrants type I, II, III, or IV. use a comma to separate answers as needed

asked by Anonymous on September 28, 2010
82. ### CHEMISTRY

45) George is making spaghetti for dinner. He places 4.01 kg of water in a pan and brings it to a boil. Before adding the pasta, he adds 58 g of table salt to the water and again brings it to a boil. The temperature of the salty, boiling water is _ _ _ _

asked by hjw on September 26, 2010
83. ### Chemistry

Could someone please check my answers/work for the following questions. EQUATION: 3H2+N2 -->2NH3 1) How many grams of NH3 can be produced from 3.98 mol of N2? 3.98 mol N2(2 mol NH3/2 mol H2)=2.65 mol Convert to grams: 2.65(17.0)=45.14g 2.)How many grams of

asked by Sarene on September 28, 2010
84. ### Chemistry

I am really having trouble answering this question, can someone help? A binary compound between an unknown element E and hydrogen contains 91.27% E and 8.73% H by mass. If the formula of the compound is E3H8, calculate the atomic mass of E.

asked by Melissa on September 12, 2010
85. ### CHemistry

The concentration of sodium chloride in an aqueous solution that is 2.23 M and that has a density of 1.01 g/mL is __ % by mass.

asked by JBS on September 26, 2010
86. ### icp

Charge q is 1 unit of distance away from the source charge S. Charge p is six times further away. The force exerted between S and q is _____ the force exerted between S and p.

asked by j on September 20, 2010
87. ### physics

A hot air balloon is descending at a rate of 2.4 m/s when a passenger drops a camera. (a) If the camera is 50 m above the ground when it is dropped, how long does it take for the camera to reach the ground? (s) (b) What is its velocity just before it

asked by vonne on September 16, 2010
88. ### CSUEB

An electron is released from rest at a distance of 9 cm from a proton. How fast will the electron be moving when it is 3 cm from the proton?

asked by Lorena on September 19, 2010
89. ### physics

A long, thin straight wire with linear charge density -λ runs down the center of a thin, hollow metal cylinder of radius R. The cylinder has a net linear charge density 2λ. Assume λ is positive. Find expressions for the electric field at the following

asked by David D. on September 14, 2010
90. ### Intro. Chemistry

Based on the law of definite composition, Dalton proposed that one atom of carbon combines with two atoms of oxygen to always produce CO2. Similarly,he proposed that two atoms of hydrogen combine with one atom of oxygen to give a molecule of H2O.

asked by Cliff on September 17, 2010
91. ### college chemistry

Please identify the net ionic equation for Na3PO4 +ZnSO4=Zn3(PO4)2+ Na2SO4

asked by Jessica on September 27, 2010
92. ### chemistry

When carbon is burned in air, it reacts with oxygen to form carbon dioxide. When 24.0 of carbon were burned in the presence of 76.8 of oxygen, 12.8 of oxygen remained unreacted. What mass of carbon dioxide was produced?

asked by will on September 17, 2010
93. ### geometry

gk bisects

asked by Si on September 26, 2010
94. ### chemistry- electrochem

A cell can be prepared from copper and tin. What is the E° cellfor the cell that forms from the following half reactions? Cu2+(aq) + 2e-Cu(s) E° = 0.35 V Sn4+(aq) + 2e- Sn2+(aq) E° = 0.13 V a. 0.48 V b. 0.22 V c. -0.48 V d. -0.22 V

asked by lucylu on September 15, 2010
95. ### calculus

A conical tank has height 3m and radius 2m at the top. Water flows in at a rate of 2m^3 /min. How fast is the water level rising when it is 2m.

asked by esma on September 29, 2010
96. ### Statistics

Roll two standard dice and add the numbers. What is the probability of getting a number larger that 9 for the first time on the third time.

asked by Lori on September 19, 2010
97. ### Chemistry

a)What mass of water is produced from the complete combustion of 2.30×10−3 g of methane? b)What mass of oxygen is needed for the complete combustion of 2.30×10−3 g of methane? This is the unbalanced equation given: CH4+O2->CO2+H2O

asked by Cindy on September 21, 2010
98. ### Calculus

If a rock is thrown upward on the planet Mars with a velocity of 10 m/s, its height in meters t seconds later is given by y = 10t - 1.86t^2 a) Find the average velocity over the given time in intervals: (i) [1,2] (ii) [1,1.5] (iii) [1,1.1] (iv) [1,1.01]

asked by CMM on September 25, 2010
99. ### STATISTICS

Who is the king of the late night TV? An internet survey estimates that, when given a choice between David Letterman and Jay Leno, 52% of the population prefers to watch Jay Leno. Suppose that you randomly select three late night TV watchers and ask them

asked by Hayli on September 29, 2010
100. ### music

Thailand and Vietnam are both part of Southeast Asia, but their music is very different. What historical and cultural factors led to these musical differences?

asked by jon on September 19, 2010