# Questions Asked onNovember 6, 2012

1. ## chemistry

For which of the following mixtures will Ag2SO4(s) (Ksp=1.20E^-5)precipitate? More than one answer can be selected. a.) 150.0 mL of 0.10 M Na2SO4(aq) and 5.0 mL of 0.20 M AgNO3(aq) b.) 150.0 mL of 0.10 M Na2SO4(aq) and 5.0 mL of 0.30 M AgNO3(aq) c.) 150.0

2. ## geometry

A regular heptagon has an apothem of approximately 6.5 ft and a perimeter of approximately 44.1 ft . Based on these measurements, what is the area of the heptagon?

3. ## economics

Could someone check my work? Please When the government attempts to cover large deficits by creating more money, what is the probable result called? government borrowing hyperinflation (my choice) excess currency full employment 2. What is one of the major

4. ## Chemistry

Which of the following gases will effuse through a hole in a balloon fastest? a.Kr b.NO c.N2O d.NO2 e.ArNO2

5. ## Chemistry

Write a balanced equation for the incomplete combustion of gaseous pentane (C5H12) which combines gaseous oxygen to form carbon dioxide, gaseous water and carbon monoxide.

6. ## Chemistry

Write a balanced equation for the combustion of gaseous ethane (C2H6) a minority component of natural gas, in which it combines with gaseous oxygen to form gaseous carbon dioxide and gaseous water.

7. ## English 4

Hamlet Act 1 scene 1-4 Most of the advice Polonius gives Laertes concerns etiquette and ways to make a good impression on other people. Name the precept from Polonius's farewell speech to his son that seems to contain the best advice on how to be a good

8. ## GRAMMAR

THE PATIENT WAS PLACED IN THE WHEELCHAIR WITH THE FRACTURED TIBIA WHAT KIND OF AGREEMENT ERROR IS IT

9. ## a;gebra

The perimeter of a rectangle is 34 ft. The length is 1 ft longer than the width. Find the dimensions. Write a system of linear equation and solve the resulting system. Let x be the length and y be the width. 2x+2y=

10. ## Math for Steve

1. Identify the part, whole, and percent in the following statement: Find 15% of 750. a. part = 750, whole = n, percent = 15 b. part = 15, whole = 750, percent = p c. part = n, whole = 750, percent = 15 d. none of these 2. Write a percent equation that can

11. ## Chemistry

Aspirin is prepared by heating salicylic acid, C7H6O3, with acetic anhydride, C4H603. The other product produced is acetic acid, C2H402. C7H6O3+C4H6)3->C9H8O4+C2H4O2 What is the theoretical yield in grams of aspirin, C9H8O4, when 2.00 grams of salicylic

12. ## Physics... URGENT !!!!

A 66.7-kN car is travelling at 66.5 mph when the driver decides to exit the freeway by going up a ramp. After coasting 418 m along the exit ramp the car\'s speed is 28.9 mph, and it is h = 13.1 m above the freeway. What is the magnitude of the average drag

13. ## Chemistry

Which of the following reactions will result in a reduced total pressure? a. CH4(g) + 2O2(g) → CO2(g) + 2H2O(g) c. 2HI(g) → H2(g) + I2(g) b. 2N2O(g) → 2N2(g) + O2(g) d. 2H2(g) + O2(g) → 2H2O()

14. ## Chemistry

The density of an unknown gas is 1.72 g/L at 750.0 torr and 30.0°C. Which of the following could be the unknown gas? a. CS2 b. NO c. N2O d. NH3 e. N02

15. ## physics

A small sphere of mass m = 7.50 g and charge q1 = 32.0 nC is attached to the end of a string and hangs vertically as shown in the figure. A second charge of equal mass and charge q2 = –58.0 nC is located a distance d = 2.00 cm below the first charge. (a)

16. ## english

At his entrance before the king, all the people gave a great shout. The queen of Appamatuck was appointed to bring him water to wash his hands, and another brought him a bunch of feathers, instead of a towel to dry them: having feasted him after their best

17. ## chemistry 30 concentration of a product

calculate the concentration of the products of the following equilibrium when the equilibrium constant is 12.3 and the equilibrium concentration of nobr2 is 2.17 mol/l

18. ## Finance

The following information was available as of the close of business June 1, 2004 on government of Canada bonds. Coupon...Maturity.....Price.....Yield 5.00%......June 1, 2005......102.35......2.60 10.50%......June 1, 2006......113.91......3.26

19. ## chemistry

An ideal gas in a sealed container has an initial volume of 2.50 L. At constant pressure, it is cooled to 14.00 °C where its final volume is 1.85 L. What was the initial temperature?

20. ## Chemistry

Diethyl ether is a volatile organic compound. the vapor pressure of diethyl ether is 401 mm Hg at 18 degrees celsius and the change in H vapor = 26.0 kJ/mol. Calculate the vappor pressure of diethyl ether at 25 degrees C.

21. ## english

I have to write these sentence with the same meaning. Can anybody look them up, please? 1. We will refund your booking fee, provided you cancel 48 hours in advance. -> We will only refund your booking fee, if you cancel 48 hours in advance. 2. I wish you

22. ## Valencia

2.0L of a 2.0M HCl solution is added to water so that the final volume is 6.0L

23. ## Physics

How do you calculate the resultant force of 2 soccer balls, kicked at the same time, one with a force of 60N and the other 85N?

24. ## Chemistry

The combustion of ethane: 2 C2H6 (g) + 7 O2 (g) ---> 4 CO2 (g) + 6 H2O (g) At the same temperature and pressure, what is the maximum volume in liters of carbon dioxide that can be obtained from 15.9 L of ethane and 52.3 L of oxygen?

25. ## physics

A 1,660 kg car is parked on a hill with a slope of 8.0°. Its brakes and transmission are locked in position to keep the car from rolling. The coefficient of static friction of the rubber tires on the asphalt road is 0.14. What is the force of static

26. ## Finance

A salesperson in a furniture store receives a weekly salary of $1,250. She also earns a commission of 6% on all sales for the week and a bonus of 2% on all sales above$5,000 for the week. How much would she earn if her total sales for the week were

27. ## math VERY URGENT+IMPORTANT

Farmer McDonald is building a fence. He will place posts six feet apart and stretch the wire fencing between the posts. If his pasture is thirty-six feet long and twelve feet across, how many posts will he need? Please help immediately1

28. ## Physics Help!

An automobile fuel tank is filled to the brim with 45.3 liters (12.1 gallon) of gasoline at 14.5 degrees C. Immediately afterward, the vehicle is parked in the Sun, where the temperature is 34.5 degrees C. How much gasoline (in Liter) overflows from the

29. ## Physics Help!

Find the total kinetic energy content of 1.55 moles of an ideal gas at temperature 435 K

30. ## Geometry

BC has endpoints B(5,9) and C(-4,-3). Find the coordinates of the midpoint of BC.

31. ## geometry

Need help on perpendicular bisectors!:(

32. ## Math

2-sin^20/cos0 = sec0 + cos0 * 0 = Theta

33. ## geometry

Triangle lmn is congruent to hij. Angle l measures 35 and angle m measures 65 and angle j measures 2x. Find the value of x

34. ## Chemistry

what mass of water will be formed by reaction of 3.50g of methylamine (8CH3NH2) with 15.0g of perchloric acid (13HClO4)? Answer is 99.1. How do you work this?

consider the factorsw from the situationa leadership theory outlined in figure 12.4. Apply these factors to Facobs and Windber

36. ## Chemistry

How would I go about creating a Lewis Dot structure for the Calcium Carbonate and Magnesium Hydroxide? I know how to do it for any compound with two elements such as SF5, but I don't know how to approach it when there's a polyatomic ion involved and there

37. ## physics

calculate the electric flux through the curved surface and base of a right hollow cone of height h and base radius r when charge q is placed at its vertex?

Given a scale factor of 2, find the coordinates for the dilation of the line segment with endpoints (–1, 2) and (3, –3). (1 point) A) (–2, 4) and (6, 6) B) (2, 4) and (6, 6) C)(–2, 4) and (6, –6) D)(2, –1) and (–3, 3) 2. Given a scale factor

39. ## Chemistry

In an experiment, 25.0 mL of a gas with a pressure of 1.00 atm is contained in a balloon at 25.0°C. The balloon is then cooled to 5.0°C, and the pressure is found to be 0.750 atm. What is the volume of the gas under the new conditions?

40. ## Chemistry

How many moles of propane are contained in a 5.00 L tank at 450 torr and 25°C?

41. ## Lang. Arts

2. What is the subject of the sentence below? Try giving the dog less water and he won’t spill it on the floor. a. an understood “You” b. he c. the dog d. There is no subject. This is a fragment. Read the following excerpt from Jesse Jackson’s

42. ## math

If there are 8 boys and 9 girls in a classroom , what is the ratio of boys to girls ?

43. ## Algebra

4y^2-3ay+8y-6a. How to factor

44. ## Math

A state creates license plates that each contain two letters followed by three digits. The first letter must be a vowel ( A, E, I, O, U ) and duplicate letters and digits are allowed. How many different license plates are possible?

45. ## Chemistry

A sample of hydrogen is collected over water at a total pressure of 648 mm Hg at 22 oC. The vapor pressure of water at 22 oC is 19.8 mm Hg. The partial pressure of the hydrogen is __________.

46. ## ap chemistry

A 2.5 g of sample megnesium carbide is added to 8.8 ml of water inside calorimeter of 700 ml of water how do we find limiting reactant

47. ## Trigonometry

Alrighty I have to find two real world sinusoidal functions. I found: 1. A piston in an engine moves up and down in a cylinder. The height, h centimeters, of the piston a t seconds is given by the function: h= 120 sin(πt) + 200. 2. You can find the

48. ## world history

What was the type of monarchy where rulers are limited by law?

49. ## Chemistry

If a .01M Mn(NO3)2 solution has an ammonia concentration of 6M, would a precipitate form? Calculate the ion product and compare to Ksp. I'm way too confused. I'm pretty sure a precipitate would form so I set up an ice table but don't know where to go from

50. ## math

if 2 small containers and 1 large container together hold 10 cups of water, and 1 large container minus 1 small container leaves 4 cups of water, how many cups of water does the large container hold.

51. ## Chemistry

Consider the reaction CaSO4(s)rightleftharpoons Ca^2+(aq)+ SO_4^2-(aq) At 25 C the equilibrium constant is Kc = 2.4 \times 10^-5 for this reaction. If excess CaSO4(s) is mixed with water at 25C to produce a saturated solution of CaSO4, what are the

52. ## Physics Help!

The New River Gorge bridge in West Virginia is a 514 m long steel arch. How much will its length change between temperature extremes -20.3 degrees C and 32.7 degrees C

53. ## physical science

A 30.0kg child standing from rest slides down a water slide with a vertical height of 10.0m. What is the childs speed (a)halfway down he slides vertical distance and (b)three-fourths of the way down? (Neglect friction?

54. ## Math

For a certain set of five numbers, the mean of all but the largest is 80, and the mean of all but the smallest number is 90. What is the range of the set of five numbers?

55. ## Finance

A dealer in government securities currently holds $875 million in 10-year Treasury bonds and$1,410 million in 6-month Treasury bills. Current yields on the T-bonds average 7.15 percent while 6-month T-bill yields average 3.38 percent. The dealer is

56. ## science

Two blocks of different temperatures are brought together. Block A is a 360.0-kg block is made of Material X which has a temperature-dependent specific heat. Its initial temperature is TA = 200.0¡ã C. Block B is a 1000.0-kg iron block with an initial

A 10.0 kg cylinder rolls without slipping on a rough surface. At an instant when its center of gravity has a speed of 16.0 m/s, determine (a) the translational kinetic energy of its center of gravity.(b) the rotational kinetic energy about its center of

58. ## Physics HELP!

A war-wolf, or trebuchet, is a device used during the Middle Ages to throw rocks at castles and now sometimes used to fling pumpkins and pianos. A simple trebuchet is shown in the figure. Model it as a stiff rod of negligible mass 3.00 m long and joining

59. ## Physics

A 9.00 kg mass is connected by a light cord to a 1.00 kg mass on a smooth surface as shown in the figure. The pulley rotates about a frictionless axle and has a moment of inertia of 0.300 k∙m2 and a radius of 0.500 m. Assuming that the cord does not slip

60. ## biology

What is the different between tissue-specific knockout mouse and an inducible knockout mouse

61. ## Science

The products of the reaction between zinc and sulfuric acid are zinc sulfate, hydrogen sulfide, and water. Balance the equation using the electron-transfer method.

62. ## trigonometry

2cotx + 1 = -1 over [0,2pi)

63. ## Chemistry

what mass of nitrogen dioxide (8NO2) will form by reaction of 3.50 mole of perchloric acid (13HClO4) with excess methylamine (8CH3NH2)? Answer is 99.1 g. How do you work this?

64. ## Trigonometric

Given that sinx = 7 /25 pi/2

A painter climbs a ladder leaning against a smooth wall. At a certain height, the ladder is on the verge of slipping. Let the mass of the painter be 69.0 kg, length = 2.80 m, the ladder’s mass to be 21.0 kg, θ = 57.0°, and the coefficient of friction

66. ## geometry

can someone help please? Find the measure of the smallest angle, ∠HFG, if ∠ GHF = 92° and ∠HGF = 72°. 16 20 26 15

67. ## English 8R - help!!!!!

the princess diaries movie "reviews" in quotes???? you know how in movies trailers they say the movie review quotes "5 star" or "best film this year" I couldn't find any movie reviews in quotes can you help me, i need about at least 3 for my movie poster

68. ## Chemistry

The gas sulfur dioxide, SO2, oxidizes to form another gas, sulfur trioxide, SO3. How many oxygen atoms are present in 3.20 g of sulfir trioxide?

69. ## physics

From the moment a 42 m/s fastball touches the catcher's mitt until its completely stopped takes 0.014 s. Calculate the average acceleration of the ball as it is being caught.

70. ## Chemistry

What is the root-mean-square speed of N2O at 25°C?

71. ## algebra

What is the vertex form of the equation? y=-x^2+12x-4

72. ## algebra

What is the expression in factored form? 2x^2+16x+24

73. ## algebra

Use the quadratic formula to solve the equation. x^2-7x-6=0

74. ## math

destiny is going to build a patio. she wants the patio to be 20 feet by 35 feet. what is the perimeter of the patio in yards?

75. ## algebra

What are the solutions? 1/2x^2+2x+3=0

76. ## math

3 1/2 + 2 5/8 -4 1/4=

77. ## math

Consider the relation R = (a,b),(a,c),(c,c),(b,b),(c,b),(b,c) on the set A = a,b. Is R reflexive? Symmetric? Transitive? and why or why not.

78. ## ENGLISH LIT

The theme of the book "Tolstoy" the death of ivan ilyich. i read the book but i don't get the theme.

79. ## MATH

mark scores 6 points. amy scores 11 points. how many points does mark need to tie the game? WRITE A NUMBER SENTENCE TO SOLVE. THANK YOU

80. ## math

If y varies diretly with x, write an equation for the direct variation. then find each value. Find y when x = 10 if y = 8 when x = 20 If think I can find the value by y/10 = 8/20 with the answer for the value is 4. My problem is how to find the equation.

81. ## English 8R - Reflections help!!!!

I can't think of a topic to write for the Reflections This is not an English assignment and plus the deadline is 11/14/12, I just want to write the essay. I'm already doing visual arts but I want to try the literature the theme is "The Magic of a Moment" I

82. ## Grammar

Is tthe following statement dependent clause? So Chad bought a new bat

When the movie Star Wars premiered in 1977, it was both surprising and a revolution in its special effects. Is this correct or does it have bad speeling ?

84. ## Math

Stephanie got a travel pack of 4 aspirin, each 500 milligrams. How many total grams are in the pack 2 grams?

85. ## physics

a jet plane traveling at +87 m/s lands on a runway and comes to ret in 11 s. a)Calculate its uniform acceleration b)Calculate the distance it travels

86. ## Chem

How many grams of CO2 can be produced when 200 g of C5H12 are reacted with 300 g of O2?

87. ## physics

Consider the 57 N weight held by two cables shown below. The left-hand cable is horizon- tal. 57 N 52 a) What is the tension in the cable slanted at an angle of 52? Answer in units of N

88. ## Pre Calc

How to prove tan4x = 1-8 sin squared of cos squared of x

89. ## physics

A sled whose total mass with cargo is 30.0 kg rests on ice. The coefficient of static friction is 0.20, and the coefficient of kinetic friction is 0.15. The sled is attached to a rope, horizontally, in which the tension force is slowly increased. How much

90. ## Chemistry

The density of ethane, C2H6, at 25 oC and 1.10 atm is ___________.

91. ## english 2

Neither pesticides nor hormones are used in the production of organic foods. Is there any mistakes here ?

92. ## MATH

mark scores 6 points. amy scores 11 points. how many points does mark need to tie the game? WRITE A NUMBER SENTENCE TO SOLVE. THANK YOU

93. ## pre-calc

two lighthouses A and B are positioned along the coast.A ship is positioned 30 miles from lighthouse A and 40 miles from lighthouse B.The angle between the line of sight from the ship to lighthouse A and the line of sight to lighthouse B is 33 degree. what

94. ## math

rule= input3 output 2 input 6 output3 input 9 output4 input 12 output 5

95. ## vocabulary

A sentence with offhand oversight prior proclaim

96. ## Chemistry

Which of the following will result in a chemical change?

97. ## pre-calc

a lifeguard sits on the lifeguard stand that is about eight feet high.he suddenly notices that a swimmer is struggling in the water.the angle between the base of the lifeguard stand and the swimmer is about 102 degree,and the straight line distance between

98. ## Chemistry

convert 458166 atoms of H20 to moles

99. ## High school

Maths;{2X-2Y=4+{3X+4Y=6

100. ## pre-calc

two observers 3 miles apart and facing each other find that the angles of the elevation of a balloon in the same vertical plane with themselves are 28degree and 31 degree respectively.find the distance from the balloon to the observer located at the 31

101. ## Science

A 52kg tricyle left a child's yard at 3m/52. What is its force ?

102. ## calculus

Find the equation of a straight line that passes through a point (1,5) and tangent to curve y = x^3

104. ## Social studies

Where can I get the information about the origin of Thanksgiving Day in detail? There are questions related Pilgrim Fathers who left for the nes land. Would you answer them, please? 1. Where did they (Pilgrim Fathers) leave for the North America? 2. Did

105. ## History

What was the contribution of Alexander the great to the world today?

106. ## Physics

two satellites are launched from earth to the same altitude. One is twice the mass of the other. How will their periods compare?

107. ## world history

What factors helped spur European exploration?

108. ## Algebra/Biology

y=2.12x + 0.004 and Protein A treated w/Bradford Reagent and has an A595 of 0.53. Can you please explain how to calculate this problem so I know in the future? Thanks for your help.

109. ## Science

Why are dog fleas more successful parasites than bacteria that causes deadly diseases?

110. ## physics

An 8 g bullet is shot into a 4.0 kg block, at rest on a frictionless horizontal surface. The bullet remains lodged in the block. The block moves into a spring and compresses it by 7.9 cm. The force constant of the spring is 1400 N/m. What is the impulse of

111. ## Physics B

Objects with masses of 105 kg and 528 kg are separated by 0.482 m. A 41.1 kg mass is placed midway between them. 0.482 m b b 105 kg 41.1 kg 528 kg Find the magnitude of the net gravitational force exerted by the two larger masses on the 41.1 kg mass. The

112. ## Chemistry

Is this always true, sometime true, or never true? The orbitals of a principal energy level are lower in energy than the orbitals in the next higher principal energy level. -I'm thinking sometime true but I can't figure out how to explain why it sometime

113. ## physics

A car is rounding a curve that is the arc of a circle with a radius of r . If the car has a constant speed of 10 m/s, and its acceleration is 5 m/s 2 , what is the radius of the curve?

114. ## math

bill and ted combined age is 40. Eight years ago, bill was 2 years younger than ted is now. how old is bill now?

115. ## physics

a jet plane traveling at +87 m/s lands on a runway and comes to rest in 11 s. a)Calculate its uniform acceleration b)Calculate the distance it travels

116. ## math question

What is 0.8 x 12 and what is 0.10 x 12?

168. ## math

A carpet measures 6 meters and 5 decimeters in length by 3 meters and 2 decimeters in width. What is its area in square meters?

169. ## Physics

A 2.01 kg block starts from rest at the top of a 25.8degree incline and accelerates uniformly down the incline, moving 2.13m in 2.98 seconds. What is the magnitude of the acceleration of the block?

What are the foreign language requirements and how to get credit for them before attending for The Ohio State University?

171. ## physics

A solid disk of radius 0.20 m and a mass of 1.0 kg starts at rest and then speeds up to 100 rad/s in 10s. What is the torque that produces this rotational acceleration?

172. ## Physics

A box of books weighing 328N moves with a constant velocity across the floor when it is paged with a force of 385N exerted downward at an angle of 25.3 below the horizontal. Find muK between the box and the floor

173. ## Maths

There were 40 members in a hockey club. 3/8 of them were girls. When more girls joined the club, the percentage of the number of girls increased to 75%. How many more girls had joined the club? Some teachers attended a workshop. They were divided into

174. ## AP Calc for Reiny

You did just fine and your second derivative is correct, if you meant (6y^2 - 4x^2)/(9y^3) except they took it a bit further. notice your numerator is -4x^2 + 6y^2 from the original 2x^2 - 3y^2 = 4 , then 4x^2 - 6y^2 = 8 , and -4x^2 + 6y^2 = -8 to get

175. ## Maths

There are a total of 70 pebbles in Bag A and Bag B. There are a total of 120 pebbles in Bag B and Bag C. Bag C contains 3 times as many pebbles as Bag A. How many pebbles are there in Bag B? There were 27 pineapple tarts and murukus. The ratio of the

Consider the following equations. N2H4(l) + O2(g) N2(g) + 2 H2O(l) ÄH = -622.2 kJ H2(g) + 1/2 O2(g) H2O(l) ÄH = -258.5 kJ H2(g) + O2(g) H2O2(l) ÄH = -187.8 kJ Use this information to calculate the enthalpy change for the reaction shown below. N2H4(l) +

177. ## chemistry

Consider the equation: 2NO2(g) N2O4(g). Using ONLY the information given by the equation which of the following changes would increase the molar concentration at equilibrium of the product N2O4(g)?

254. ## math

help me! 2 3/5 + 1 4/5=

255. ## arithmetic

Amanda is making xookies for a charity event. She expects 10 people to come. She wants to have 3 cookies for each person. How can Amanda use a patter to find the product for 6 x 10?

256. ## physics

top-fuel drag racers are able to uniformly accelerate at 12.9 m/s from rest 97 m/s before crossing the finish line . How much time elapses during the run ?

257. ## Physics B

Objects with masses of 105 kg and 528 kg are separated by 0.482 m. A 41.1 kg mass is placed midway between them. 0.482 m b b 105 kg 41.1 kg 528 kg Find the magnitude of the net gravitational force exerted by the two larger masses on the 41.1 kg mass. The

258. ## physics

a race car accelerates from rest at +7.2 m/s^2 for 4.5 s. How fast will it be going at the of that time ??

259. ## Physics

To move a box you pull on the handle as indicated in the diagram shown below with a constant force F. The mass of the box is m = 8 kg and the angle è = 22°. What is the magnitude of the normal force?

260. ## Math

Stephanie got a travel pack of 4 aspirin, each 500 milligrams. How many total grams are in the pack its not 0.5?

261. ## english

he writers transformation of questioning of whether or not there truly is a God to the personal conclusion made through surrounding wondrous works that there is indeed a God. The purpose for writing this piece is to express and entertain. This can be first

4 3/4 +3 1/2

263. ## math

whole number for 30.089

264. ## CHEM EQB

How many ml of 0.2M NaH2PO4 should b added to 40 mL of 0.1M Na3PO4 to make the buffer pH 7.2. Ka1:1.1 x 10^-2 Ka2:7.5 x 10^-8 Ka3:4.8 x 10^-13