# Questions Asked onJune 14, 2010

1. ## physics

A ferris wheel rotates at an angular velocity of .036 rad/s. At t=0min your friend Seth is at the very top of the ride. What is Seth's angular position at t=3 min, measured counterclockwise from the top?

2. ## math

Calculate the finance charge and new balance using the previous balance method. Previous balance = \$179.32 Annual rate = 16% Finance charge = New purchases = \$117.42 Payments/credits = \$85.00 New balance =

3. ## chemistry

A volume of 35.0 mL of nitrogen gas was collected over water at 24 degrees C and 99.1kPa. The vapor pressure of water at this temperature is 2.99 kPa. What is the pressure of the nitrogen gas alone?

4. ## Statistics

find z such that 5.2% of the standard normal curve lies to the left of z

5. ## chemistry

Of the metals Pb, Mg, Au, and Na, which will not spontaneously donate electrons to copper in solution?

6. ## Statistics

find z such that 97.5% of the standard normal curve lies to the left of z

7. ## chemistry

I need to find how many grams phosphorus (P) are in 0.8645 g sample of MgNH4PO4 x 6H2O How many grams P2O5 can be calculated with this many grams of P What is the percent P (as P2O5) in this

8. ## Math

I need help with these problems for a test. 1. Find the inverse of the one-to-one function. f(x)=5x+1/4. 2. The height of the water, H, in feet, at a boat dock t hours after 7 am is given by E=7+4.4cos pi/35 t, where t is time measured in seconds. Find the

9. ## Statistics

In baseball, is therelinearcorrelation between batting average and home run percentage? Let x represent the batting average of a professional baseball player. Let y represent the home run percentage (number of home runs per 100 times at bat). Suppose a

10. ## physics

Rita accelerates a 0.40-kg ball from rest to 9.0 m/s during the 0.075 s in which her foot is in contact with the ball. What average force does she apply to the ball during the kick? A) 48 N B) 72 N C) 24 N D) 60 N E) 76 N

11. ## Chemistry

What volume of hydrogen would be produced by the reaction of 2.00g of Mg with an excess of hydrochloric acid at STP. Using this equation Mg+HCl

12. ## Chemistry

okay so I have this question; Co3^2- is a component of soil and can neutralize acid deposition. Sketch the pH curve for soil containing carbonate ions that undergoes continual addition of hydronium ions from acid deposition. Include relevant chemical

13. ## physics

What is the minimum downward force on the box in the figure that will keep it from slipping? The coefficients of static and kinetic friction between the box and the floor are 0.35 and 0.25, respectively.

14. ## physics

A 70.0-kg man jumps 1.00 m down onto a concrete walkway. His downward motion stops in 0.0400 seconds. If he forgets to bend his knees, what force is transmitted to his leg bones? A) 15 500 N B) 7 750 N C) 4 900 N D) 3 8740 N E) 2.600 N

15. ## proviso

how many grams of Fe2O3 are formed when 16.7g of Fe reacts completely with oxygen?

16. ## physics

The accelerating force of the wind on a small 200-kg sailboat is 707 N north. If the drag of the keel is 500 N acting west, what is the acceleration of the boat? A) 1.5 m/s2 35 degrees north of east B) 2.5 m/s2 55 degrees north of west C) 3.0 m/s2 35

17. ## math

a man buying a new car can choose among 6 different colors, 3 different steering wheel styles, and 4 different audio packages? what is the total number of different combos he can choose?

18. ## physics

Doug hits a hockey puck, giving it an initial velocity of 6.0 m/s. If the coefficient of kinetic friction between ice and puck is 0.032, how far will the puck slide before stopping? A) 19 m B) 25 m C) 37 m D) 57 m E) 68 m

gaseous ammonia is made by the following reaction: N2+3H2 - 2NH3. if you start with 7 liters on nitrogen gas, how many liters of hydrogen are needed for a chemical reaction?

20. ## phyics/moon

The acceleration due to gravity on the Moon's surface is one-sixth that on Earth. What net force would be required to accelerate a 20-kg object at 6.5 m/s2 horizontally on the moon? A) 1.3 N B) 20 N C) 33 N D) 120 N E) 130 N

21. ## chemistry

A solution of 0.2113 g of water dissolved in 25.0 g of a solvent freezes at 11.5 °C below the freezing point of the solvent. What is Kf for this solvent?

22. ## algebra

jack bought 3 slices of cheese pizza and 4 slices of mushroom pizza for a total cost of \$12.50. grace bought 3 slices of cheese pizza and 2 slices of mushroom pizza for a total cost of \$8.50. whay is the cost of one slice of mushroom pizza?

23. ## Chemistry

One mole methane is completly burned in xcess oxygen. If 8.90x10^3kj of heat are given off from theis reaction, calculate the heat given off for 1.44g of methane.

24. ## Algebra

Need help with these 2 please-- 19. Nancy invests \$100 in one account for 10 years at a 9% interest rate compounded annually, and she invests \$150 in an account for 10 years at a 6% interest rate compounded semi-annually. How much money will she have in

25. ## Statistics

does a raw score less than the mean correspond to a positive or negative score? what about a raw score greater than the mean.

26. ## chemistry

A solution of 0.2113 g of water dissolved in 25.0 g of a solvent freezes at 11.5 °C below the freezing point of the solvent. What is Kf for this solvent?

27. ## Statistics

how to sketch the areas under the standard normal curveover the indicated intervals and find the specified areas to the left z=0 to the left z=-0.47 to the left of z=0.45

28. ## Chemistry

Calculate the theoretical yield of barium sulfate using your assigned volume. I was assigned 30mL of BaCl2. The balanced equation is: H2SO4 + BaCl2 -> 2HCl + BaSO4. In the experiment we used .20M BaCl2, .60M H2SO4 and 1M HCL

29. ## Geometry

What is the radius if: degree of measurement of arc=30 length=1/3xy(pi) My answer was 8xy. degree of measurement of arc=40 length=8/9(t)(pi) My answer was 9t. degree of measurement of arc=18 length=6(y)pi My answer was 45y. These are the questions I

30. ## Algebra

Need help with these 2 please-- 19. Nancy invests \$100 in one account for 10 years at a 9% interest rate compounded annually, and she invests \$150 in an account for 10 years at a 6% interest rate compounded semi-annually. How much money will she have in

31. ## Chemistry

Calculate the theoretical yield of barium sulfate using your assigned volume. I was assigned 30mL of BaCl2. The balanced equation is: H2SO4 + BaCl2 -> 2HCl + BaSO4. In the experiment we used .20M BaCl2, .60M H2SO4 and 1M HCL

32. ## Pre-Algebra

Three individuals form a partnership and agree to divide the profits equally. X invests \$9,000, Y invests \$7,000, Z invests \$4,000. If the profits are \$4,800, how much less does x receive compared to having the profits divided in proportion to the amounts

33. ## Statistics

A football team’s coach predicts that his team will win 9 out of 10, or 90%, of its games. Which method did he most likely use to make this prediction my answer to this is relative frequency is this correct

34. ## Math/ Algebra

Post your responses to the following. Answer each question in a separate paragraph: Techniques that can simplify solving equations and inequalities are to clear fractions and decimals when solving linear equations and inequalities. 1. Demonstrate how

35. ## chemistry

Using the Le Chatelier's principle, predict the direction of the net reaction in each of the following equilibrium systems, as a result of increasing the pressure at constant temperature. a)N2(g) + O2(g) ==> 2NO(g) PCl3(g) + Cl2(g) COCl2(g)

36. ## CAPITALIZATION

we listened to that old song again, "you and me against the world." the words need to be capitalized is We, You, Me, Against, World.

37. ## Chemistry

Predict whether the following solutions are acidic basic or neutral. Provide explanations to support your predictions a) ammonium phosphate b) Ammonium sulfate c) Magnesium oxide

38. ## college

3. What are the common elements of healthy relationships

39. ## algebra

put into scientific notation (3.7x10^4)(8.1x10^-7

40. ## Physical Education-Hockey

In what year and at which Olympic games did the Indian hockey team use the Indian dribble?

johnny's best lifelong memory was when he got his driver's license. during his teenage years, a driving license signified his passage to adulthood. (johnny knew that a driver's license was like a_____ to adulthood. 1)road 2)passage 3)road 4)all(1,2,3) my

42. ## Chemistry

Mass of flask, boiling chips, foil cap and unknown after cooling reaction 83.350g 2.Mass of flask, boiling chips,and foil cap. 82.657 3. water bath temperature C is 95.0 C 4. Barometric pressure inches of Hg 30.09 5. Accepted molar mass of unknown is

43. ## physics

When a force is applied to an object with mass equal to the standard kilogram, the acceleration of the mass is 3.25 m/s2. When the same magnitude force is applied to another object, the acceleration is 2. 75 m/s2. What is the mass of the object? What would

44. ## Statistics

Suppose in a carnival game, there are six identical boxes, one of which contains a prize. A contestant wins the prize by selecting the box containing it. Before each game, the old prize is removed and another prize is placed at random in one of the six

45. ## CAPITALIZATION

her father is reverend harry anderson?words need to be capitalized is Reverend, Harry, Anderson

46. ## Algebra Combining like terms

It is a multiple choice test. I have placed my after the question. I am not asking anyone to do it for me I simply would like someone to check my answers and maybe if their nice tell me what went wrong on the ones i get wrong. Thanks! 1.) Combine Like

47. ## English

Is Don in? (telephone) - He is not in at the moment. (What other expressions can we use instead of 'at the moment'?)

48. ## algebra

factor completely: 22xy^3+55x^4y^2

49. ## chemistry

What are the final products when CaCl2 x 2H20 are heated strongly?

50. ## Statistics

You draw two cards from a standard deck of 52 cards and replace the first one before drawing the second. Find the probability of drawing a 4 for the first card and a 9 for the second card. Round your answer to the nearest thousandth. 0.039 0.019 0.155

51. ## Geometry

What is the circumference of the circle if the radius is: 5x-My answer was 57(x)pi. What is the radius if the circumference is: 30x(pi)-My answer was 2x. (x + y)pi -My answer (x+y)/7. What is the length of the arc if: radius=3 degree of measurement of

52. ## macroeconomics

According to the optimal output rule, if marginal benefit

53. ## Chemistry

A 1.009-g mixture of the solid salts Na2SO4 (molar mass=142.04g/mol) and Pb(NO3)2 (molar mass=331.20g/mol). The precipitate was filtered and dried, and it mass was determined to be 0.471 g. The limiting reactant was determined to be Na2SO4. a. write the

54. ## Statistics

Suppose x has a distributionwith u=72 and 0=8 if random samples of size n=16 are selected, can we say anything about the x distributin of sample means if the originalx distribution is normal can we say anything about the x distribution of random samples of

55. ## PHY

A good scientific theory is one that has survived extensive scrutiny by the scientific community and best explains observable facts. What are some observations about our solar system that are explained by the nebular hypothesis? Are there any observations

56. ## English

1. He scored 98 % in/on the English test. 2. He scored 98 points in/on the English exam. (Which expression is correct? Do we have to use 'in' or 'on'?)

57. ## math

How do you complete Number-Grid Puzzles?

58. ## chemistry

write the reaction for the dehydration of CuSO4 . XH20?

59. ## organic chemistry

recrystallization question: a student's correctly calculated value for the % recovery of purified unknown solid was 102%. assume that the student performed all steps of procedure correctly. a) comment on the validity of the result (include reasons). b)

60. ## English

I'm looking for three examples (quotes would be a big help) of the following three traits that Ralph displays: Courage Rationality Strong-will Any quotes and examples from the book are INCREDIBLY APPRECIATED. Essay due tomorrow and I cannot think of

61. ## Statistics

Native American pot shards discovered i a hpoi villiageare approximately normally distributed with a mean of 5.1 millimeters and a standard deviationof 0.9mm what is the probability that the thickness is (a)less than 3.0mm (b) more than 7.0 and (c) between

62. ## Statistics

Let x be the elevation (in thousands of feet) for an archaeological site in the southwestern United States. Let y be the percentage of unidentified artifacts (no specific cultural affiliation) at a given elevation. Suppose that the following data were

63. ## light

A failure of the red-sensitive nerves in the eye to respond to light properly causes?

64. ## social studies

PLEASE HELP FAST. i have a social final tmr. and if i don't get 50 questions right im gonna fail socials 9!!! does anyone noe a really good website for the entire socials 9 notes? the textbook im using is called "crossroads" PLEASE HELP. FAST !! i cannot

65. ## TI-83 CALC PROGRAM

Please can anyone help me with this or any part of it? Be very grateful as left it too late... Write a program for ti-83 calculator which generates and displays integer values for A, B and C between 1 and 10; • requests the student to input the solution

66. ## Chemistry

In cold climates, methanol is often used as a gasoline antifreeze and an additive of winer gas. How does it remove water vapour an ice from the gas tank and the fuel line?

67. ## Career Studies

Hi, I have to do a visual presentation on a current economic or social trend. I'm not allowed to use bristol board/posters or powerpoint/slideshows, because she wants us to be creative. What are some trends I could choose from, and what kind of

68. ## Macroeconomics

Between 1968 and 1980, the US economy experienced a slowdown in productivity growth. However, since the mid 1980s, economy has experienced increased in the growth rate in productivity. Can you give reasons why US productivity growth started to increase

Your friend has asked you why the price of bananas is higher during certain times of the year. Using what you have learned about the laws of supply and demand, explain to your friend how the market affects price.

Consider the experiment of rolling a single die. Find the probability of the event described. What is P(odd or prime? Since this is an "or" problem would the problem consist of 3 chances out of 6 thus my answer = 1/2?

71. ## Algebra

-0.2x+12x+11 solve by using quadratic equation

72. ## Statistics

Native American pot shards discovered in a hopi villiage are approximately normally distributed with a mean of 5.1 millimeters and a standard deviationof 0.9mm what is the probability that the thickness is (a)less than 3.0mm (b) more than 7.0 and (c)

73. ## Statistics

Let x be the elevation (in thousands of feet) for an archaeological site in the southwestern United States. Let y be the percentage of unidentified artifacts (no specific cultural affiliation) at a given elevation. Suppose that the following data were

74. ## CAPITALIZATION

aunt consuelo is consuelo metendez, doctor of dental surgery? the words (Aunt, Consuelo, Consuelo, Metendez, Doctor, Dental, Surgery )need to be capitalized

75. ## Math

The area if a rectrangular swimming pool can be represented by the trinomial expression 6xsqaured+5x-4. If x= 4m, what is the total area of the pool and what are it's dimensions?

76. ## psychology 202

As we age, our physical functioning deteriorates. This is most likely due to reduced officiency in basic cellular processes. One cause of this is thought to be:

77. ## English- A little help please

I am doing my plot summary on the Book Royally Jacked and I really want to know the significance of this title towards the book. I can't seem to explain it well. Royally stands for the royal family in this book whom Valerie and her dad are staying with. I

78. ## To Ms. Sue

Ms. Sue how does this opening sound for a plot summary? I chose the book "Royally Jacked" and it turned out to be pretty good. The only thing that I didn't really like about it was that there wasn't really any high rising actions in there, but it was still

79. ## Standard Deviation-What?

I cannot figure out how to do standard deviation. standard deviation 2, 5, 47, 11, 13, 48, 39, 36

80. ## trig

Write the following equation in standard form and identify the type of conic: 9y^2 - 4x^2 + 8x + 18y + 41 = 0

81. ## biology

At one time the continent of Australia was connected to Asia. About 50 million years ago Australia became separated. It has many unusual animals not found elsewhere, such as the Kangaroo and the Koala bear. Using the concepts of geographic isolation and

82. ## math

the first term of a sequence of numbers is 4. each term after the first is 4 more than half the preceding term, what is the fourth term of the sequence?

83. ## algebra

Which is greater 3^31,9X3^30 or 3^33?

84. ## calculus

Consider the function. f (x) = 5x3 + 3x (a) Compute the derivative at x = 3 using the limit definition. f '(3) = (b) Find an equation of the tangent line. 2

85. ## SCI 162

Case Study: Gayle and Patrick Read the following case study about Gayle and Patrick. You may also click on the Audio: Thinking It Over if you prefer to listen to the case study. After reviewing the case study, answer the questions on below. Gayle and

86. ## physics

A spring scale is attached to a cart and is being pulled with a force of 10.5 N. If the car moves to the right with a constant velocity. What are the magnitude and direction of the frictional force?

87. ## biology

1. What adaptive advantage did seeds provide -------------------------------------- Notes: Embryo is protected in a seed. The seed is modified for dispersal which is good b/c…. Once landed, the seed can remain dormant until… The rains come… The

88. ## Sci

I want a catchy prahse for my topic experiment"Can water be splitted into hydrogen and oxygen?"

89. ## Math

how to round 427,685 to the nearest thousand?

90. ## Math

cot (theta)=-9/8, cos (theta)

91. ## vocab

The lake's reflection usually creates a glare,but now the surface is

92. ## geometry

how much foil is required to cover a rectangular box that is 4 in. by 8 in. by 5 in.?

93. ## science

which two biomes are the driest?

94. ## algebra

if there is a 4 digit code and the number choices are 0-9 and the last two numbers in the code are 0 and 7 what are all the code possibilites? _ _ 0 7

95. ## chemistry

1. Mass of flask, boiling chips, foil cap and unknown after cooling reaction 83.350g 2. Mass of flask, boiling chips and foil cap. 82.657 3. water bath temperature C 95.0 C 4. Barometric pressure in Hg 30.09 5. Accepted molar mass of unknown 86.2g/moles 6.

96. ## Chemistry

Calculate the energy in joules and calories required to heat 40.0 silver from 112 degrees to 280 degrees

97. ## Chemistry

1. Mass of flask, boiling chips, foil cap and unknown after cooling reaction 83.350g 2.Mass of flask, boiling chips,and foil cap. 82.657 3. water bath temperature C is 95.0 C 4. Barometric pressure inches of Hg 30.09 5. Accepted molar mass of unknown is

98. ## biology

Imagine that your a scientist digging for fossils on a low-lying grassland. Many of the fossil you dig up seem to belong to creatures adapted to live in the mountains. Million of years ago, what do dou think the landscape looked like in the region where

99. ## biology

Wasps are multicellular consumers with complex organ sytem. To what kingdom do they belong?

100. ## Statistics

fawnsbetween one and five months old have a approx body weight of u=27.2 kilograms and a standard deviation of o= 4.3 kilograms let x be the the weight of the fawn in kilograms convert the following x intervals to z intervals. x=

101. ## math

what can x equal if 4 < 2x+1/x-3 < 7

102. ## biology

Amoebas are unicellular consumers that lack complex organ systems and are found in damp enviroments. To what kindom do they belong

103. ## biology

A species of bird with three toed feet feeds on worms and crawling insects. Over a period of several thousand years, the ocean level rises, and the region where the bird lives is flooded. Over several thousand years or so the birds descendant evolve webbed

104. ## Math

How do you factor this completely? 6x-x^3-x^2

105. ## accounting

How do I figure out the cost of merchandise purchases for the year?

4xc=29+3

107. ## Biology

Using the words hypertonic, hypotonic, and equilibrium correctly , predict what happens when, A) A living cell is placed into fresh water and B)A different living cell is placed into salt water.

108. ## delinquency

how dose gender affect delinquency

109. ## Statistics

How many sequences contain exactly three heads when you flip a coin five times? my answer was 15 but apparently I am wrong 2 15 10 8 12

110. ## healthcare

if hipaa rules are stricter than state law which standard shuld you foolow and why? what if the state law was stricter?

111. ## french

microwave in french

112. ## healthcare

explain the subject matter jurisdiction of federal courts.

114. ## general studies

I'm trying to narrow down/refine thesis statementt about women vs. men, being as ruthless and capable of voiulenbt crime. Any ideas?

115. ## research

what strategies formulated a nation apart

116. ## Biology

please help !!! were you able in all cases to determine the parent and meiotic stage of origin of the nondisjunction?

117. ## science

which two biomes is the driest?

118. ## EXP105

SUMMARIZE BLOOM'S THEORY IN YOUR OWN WORDS AND HIGHLIGHT THE MAIN COMPONENTS

119. ## literature

i need to know all of the syllables in words

120. ## biology

A sceitists gradually increases the amount of carbon dioxide available to a plant. The plant's rate of photosynthesis increases at first, but then levels off. What else might tyhe plant need to further increase its rate of photosnthesis?

121. ## Statistics

What are the values of the mean and standard deviation of a normal standard deviation

122. ## math

if the lengths of triangle RST are r, s and t, where r=2, s=4, and t is an integer, what is one possible value of r+t/s?

123. ## biology

In Aristotle's system of classification, which two animals would be grouped together (A)segulls and lizards (B)seals and bats (C)snails and butterflies (D)whales and fish

124. ## literary

define modernism

125. ## Mechanics

If an object weighs 39.2 N on earth, what is its mass?

127. ## English

1. I am 100% about that. 2. I am 100% sure about that. 3. I am positive about that. 4. I am 100% positive about that. 5. I am 100% certain about that. (Are they the same and grammatical?)