# Questions Asked onMarch 5, 2010

1. ## Chemistry-Equation

How many moles of glucose, C6H12O6, can be "burned" biologically when 10.0 mol of oxygen is available?

2. ## physics

using the strap at an angle of 31° above the horizontal, a Grade 12 Physics student, tired from studying, is dragging his 15 kg school bag across the floor at a constant velocity. (a) If the force of tension in the strap is 51 N, what is the normal force

3. ## PHYSICS

A -3.0 nC charge is on the x-axis at x = -10 cm and a +4.0 nC charge is on the x-axis at x = 20 cm. At what point or points on the y-axis is the electric potential zero?

4. ## chemistry

A solution is prepared by dissolving 15.0 g of NH3 in 250.g of water. The density of the resulting solution is 0.974 g/ml. The mole fraction of NH3 in the solution is?

5. ## child care

which of the following statements about learning are true?

6. ## chemistry 1

what is the value of the coefficient for cobalt when the following equation is balanced Co(s)+ O2 (g)> Co2O3(s)

7. ## Math

A lottery has a grand prize of \$180,000, two runner-up prizes of \$22,500 each, eleven third-place prizes of \$3600 each, and fourteen consolation prizes of \$450 each. If 720,000 tickets are sold for \$1 each and the probability of any one ticket winning is

8. ## physics

What is the acceleration of the system if both blocks have a mass of 5.0 kg, and the coefficient of kinetic friction is 0.11? [___/4] (b) Determine the tension in the rope.

9. ## English

Why do you go to a museum? I go there to watch works of art. I go there to look at works of art. I go there to see works of art. I go there to enjoy watching pictures. I go there to see the works of famous artists. (Are the answers all grammatical? Would

10. ## Economics

How do you calculate the growth rate of real GDP between two years?

11. ## MATH

Which of the following equations has the given solution set? Solution set: Ø A)-2m + 5 = 2m + 5 B)-2m + 5 = -2m + 5 C)-2m + 5 = -2m - 5 D)none

12. ## Math

In rhombus DEFG, if m

13. ## physics

a 1.50 kg book is sliding along a rough horizontal surface. At point A it is moving at 3.21 m/s, and at point B it has slowed to 1.25m/s. 1.) How much work was done on the book between A and B? 2.) If -0.750 J of work is done on the book from B to C, how

Find a pair of factors for each number using the difference of two squares. a. 45 b. 77 c. 112

15. ## Chemistry

An alpha particle (mass 6.6 x 10^-24 grams) emitted by radium travels at 3.4 x 10^7 plus or minus 0.1 x 10^7 mi/h. (a) What is its de Broglie wavelength (in meters)? (b) Whats uncertainty in its position? for part (a) I got 1.53 meters which said it was

Write fourteen thousand and six tenths in standard form. I wrote: 14000.06 Another site told me that it was 0014.06. Which is correct? Please advise, Thank you

17. ## Chemistry-Equation

When iron rusts in air, iron(III) oxide is produced. How many moles of oxygen react with 2.4 mol of iron in the rusting reaction?

18. ## Marketing

Please check and correct my answers for the following multiple choice questions: 1-For Tesla, a new firm that makes an electric sports car, estimating how many competitors will make electric vehicles and what kinds they will make, is: *A. One of the

Please check my answers: 4) Professional Dental Supply has been successfully selling dental instruments to dentists for the past 20 years, and has developed strong customer relations. When looking for new marketing opportunities, Professional Dental Supply

20. ## tsu

While exploring a cave, a spelunker starts at the entrance and moves the following distances: 75.0 m north, 275 m east, 160 m at an angle 30.0° north of east, and 150 m south. Find the resultant displacement from the cave entrance.

21. ## accounting

Control activities and monitoring are one and the same. T or F

22. ## psychology

According to attribution theory,Americans are likely to blame others' first when something goes wrong,but will point to their own when someting goes right a) dispositional attributes;self-serving bias b) self-serving bias;dispositional attributes c)

23. ## phy sci 101

If you have 24 grams of an unstable atom with a half life of 5,000 years, how many grams would be left after 15,000 years

24. ## poetry

What is the tone and theme of Maya Angelou's poem "Still I Rise"?

25. ## Organic Chemistry

I was wondering what the name to a compound is. A phenyl attached to a carbon that is attached to both a double bonded oxygen and a single bonded oxygen and then a 3 carbon chain linked to the single bonded oxygen

26. ## Oceanography

On a sunny day in an estuary, the surface irradiance is 1.6*10^17 photons cm^-2 s^-1. What is k if the irradiance is 7.3*10^13 photons cm^-1 s^-1 at 16 m depth? At a spot in the ocean, the surface irradiance is 7.8*10^16 photons and k=.14 m^-1. At what

27. ## Chemistry

Consider the following equilibrium: CaCO3(s)Ca 2+(aq) + CO3 2-(aq) Which of the following reagents, when added to the equilibrium system, would cause more CaCO3 to dissolve? a)KNO3(s), can't be this, NO3 is soluble with all negative ions b)CaCO3(s), adding

28. ## MATH

In downtown Victoria there are seven pink houses. Every pink house has seven pick rooms, every pick room has seven cats, and every cat has seven kittens. How many pink rooms are there? How many kittens are there?

29. ## Physics

In a fit of pique, the Canadians fire a cannonball due south from vancouver (lat 49.2 degrees N) at a randomly picked city (39.4 degrees N). Assuming the cannonball takes 48 minutes to get there, by how far and in what direction will the cannonball miss?

30. ## statistics

Considering that a researcher can test at the

Please check my answers: #7-A firm's marketing mix decision areas would NOT include: A. Price B. Promotion C. Product *D. People* #8-The marketing mix: *A. Helps to organize the marketing strategy decision areas* B. Includes four variables-People, Place,

32. ## marketing

Which of the following statements regarding marketing strategies is FALSE? A. These strategies require decisions about the specific customers the firm will target and the marketing mix the firm will develop to appeal to that target market. B. It is useful

33. ## chemistry

CH3 CH3-C-CH3 CH3CH2CH2-C-CH2CH2CH2CH3 CH3 give the IUPAc name for this compound? is it 4-methyl-4-tert-methyloctane?

34. ## band

Help what is the fingering on the flute for F flat?

35. ## commas

the coordinating conjuncitons that can be used to combine two complete sentences with a comma are"for,and,nor, because,yet, so." is this correct?

36. ## Chemistry- Equation

Aluminum reacts with sulfuric acid to produce aluminum sulfate and hydrogen gas. How many grams of aluminum sulfate would be formed if 250 g H2SO4 completely reacted with aluminum?

37. ## Chemistry-Equation

How many liters of hydrogen gas are needed to react with CS2 to produce 1.25 L of CH4 at STP?

38. ## Chemistry

Which type of stoichiometric calculation does not require the use of the molar mass?

39. ## health

a pretrail conference most likely would occur

40. ## criminal justice

What tactics would you use if you had to interview a witness who was the victim of a crime? Would your tactics be different than those used for a witness who had no connection to the crime or parties involved?

41. ## Math

Match the trigonometric expression: cos^2 [(pi/2) - x] / cos x Does csc x match with this?

trying to start my own business selling televisions and need help coming up with business names.

43. ## Chemistry

What does it mean to have a percent yield over 100?

44. ## Math

Use the fundamental identities to simplify the expression. csc Q / sec Q so this would be 1/sinx / 1/cosx and then 1/sinx times cosx/1 = sin x cosx Is this correct so far? If it is I do not know what to do next.

45. ## Math

Two coins are taken at random (without replacement) from a bag containing 7 nickels, 5 dimes, and 6 quarters. Let X denote the random variable given by the total value of the two coins. Find E(X). (Round your answer to four decimal places.)

46. ## Math

Two coins are taken at random (without replacement) from a bag containing 4 nickels, 8 dimes, and 3 quarters. Let X denote the random variable given by the total value of the two coins. Find E(X). (Round your answer to four decimal places.) E(X) = \$...

47. ## criminal justice

HI can some one help me find a website or tell me where i can find this information at. "Identify the technological tools that might be used in the communication process in criminal justtice"

48. ## microeconomics

Externalities are third party consequence of some other action. They can be positive or negative externalities and they impose a benefit or cost to a third party. Identify a positive and a negative externality. Discuss the benefits and costs associated

Use the fundamental identities to simplify the expression. tan^2 Q / sec^2 Q sin^2/cos^2 / 1/cos^2 = sin^2 / cos^2 times cos^2 / 1 = The cos^2 cancels out so sin^2 is left. Is this correct?

50. ## Math

Which of the following would eliminate the variable on the left side of the given equation? 36 - 19w = -6w + 41 A)add -19w B)add 6w C)add 19w D)add -36

51. ## psychology

If you want a response to persist and resist extinction once it has been learned,you need to reinforce it: a)only as a secondary reinforcer b)on a fixed schedule c)continuosly d)interminttently IS A CORRECT ANSWER?THANK YOU:)))

52. ## Math

Having trouble with this equation. The text reads graph this equation: 6y+2x=8

53. ## math

Solve for x. 5x - 6 = 4x + 8 A)x = -14 B)x = -2 C)x = 2 D)x = 14

54. ## Econ

How do you calculate the growth rate of real GDP between two years?

55. ## british literature

What is the meter or sonnet 73

56. ## british literature

Dramatic irony occurs when a reader or an audience notices something that a character in the story or play does not know.what would the dramatic irony be in Twelfth Night,at least two examples for my essay.

how do i solve this problem The Math Behind the LawHow much force is Mike applying to the 1000 kg car to make it accelerate at a rate of .05 m/s2?

58. ## Algebra

For which table(s) of values in Exercises 39–42 is the relationship linear? Tell how you decided. Write the equation for each linear relationship. x y 5 20 10 30 15 40 20 50 25 50 30 50 bobpursley stated "Look at y. It stays constant at the end. If it

59. ## Math

Perform the multiplication and use the fundamental identities to simplify. (cotx + cscx)(cotx-cscx) I know that you have to foil first so cot^2x - csc^2x and then use the pythagorean identity 1+cot^2u = csc^2u but I do not know how to simplify.

60. ## Psy202

what is a opening of a paragraph

Use the fundamental identities to simplify the expression. csc Q / sec Q so this would be 1/sinx / 1/cosx and then 1/sinx times cosx/1 = sin x cosx Is this correct so far? If it is I do not know what to do next.

62. ## CHEMISTRY

The atmosphere contains about 6.8×1013 moles of ozone. If this amount of ozone gas is compressed into a thin layer around the globe (the radius of Earth is 6370 km) at STP (Standard Temperature (0°C) and Pressure (1.0 atm.)), how thick will the layer be

63. ## math

Which of the following equations has the given solution set? Solution set: Ø A)-2m + 5 = 2m + 5 B)-2m + 5 = -2m + 5 C)-2m + 5 = -2m - 5

64. ## math

Students at Euler Middle School are talking about ways to raise money for a school party. One student suggests a game called Heads or Tails. In this game, a player pays 50 cents and chooses heads or tails. The player then tosses a fair coin. If the coin

65. ## MATH

three brothers try to divide some cookies. The oldest brother gets half of the cookies and half of a cookie. The middle brother gets half of the cookies that are left and half of a cookie. The youngest brother gets half of the cookies that are left and

66. ## human service management

What are three ways human resources help support the strategic goals of human service organizations

67. ## math

Write each of the following in the form a sqrt b where a and b are intergers and b has the least value possible

68. ## trig

y=tan(2x+3.14/4)

69. ## leisure

what has a leg on each side and one in the middle

70. ## algebra

In printing an article of 48,000 words, a printer decides to use two sizes of type. Using the larger type, a printed page contains 1,800 words. Using a smaller type, a page contains 2,400 words. The article is allotted 21 full pages in a magazine. How many

71. ## French

Could you check these thanks Directions: Vrai or faux? Part 1 1. Aux Etats-Unis chaque municipalité a son bureau de poste. Answer: Vrai 2. L'employé(e) des postes distribue le courrier et le facteur travaille au bureau de poste. Answer: faux 3. On ne

72. ## Physics

A 100kg mass is connected to a 200kg mass by a massless rope. The two masses rest on a frictionless surface. A (massless)rope is then attached to the 200kg mass, and is pulled. The two mass system accelerates. What is the relationship between the two

73. ## Finance

What is the current yield of a annual coupon bond with a 6% coupon, four years until maturity, and a price of \$750?

74. ## algebra 2

Use an associative property to write an equivalent expression. 2r + (19s + 22)

75. ## Algebra

We are studying linear and quadratic functions and the problem is stated as: "The Political Noise Problem. The amount of background noise is important to television news reporters. One station developed the formula N=-t^2+12t+54 showing the noise level in

76. ## math

Which of the following equations has the given solution set? Solution set: Ø A)-2m + 5 = 2m + 5 B)-2m + 5 = -2m + 5 C)-2m + 5 = -2m - 5

77. ## in essay question

Why do you think people are so fascinated with celebrities?

78. ## Pre-Cal

Perform the multiplication and use the fundamental identities to simplify. (cotx + cscx)(cotx-cscx) I know that you have to foil first so cot^2x - csc^2x and then use the pythagorean identity 1+cot^2u = csc^2u but I do not know how to simplify.

79. ## Pre-Cal

Use the fundamental identities to simplify the expression. csc Q / sec Q so this would be 1/sinx / 1/cosx and then 1/sinx times cosx/1 = sin x cosx Is this correct so far? If it is I do not know what to do next.

80. ## Statistics

The first class in a relative frequency table is 50–59 and the corresponding relative frequency is 0.2. What does the 0.2 value indicate?

81. ## History

How did the ratification of the Constitution affect indentured servants?

82. ## Pre-Cal

Simplify the expression 1/tan^2x+1 tan^2x+1 = sec^2x = 1/sec^2x I am not sure what 1/sec^2x is equal to

83. ## Financial accounting

What does rule of thumb evaluation method mean? no matter how many times i read this, I get different answers..and how would I calculate this or what is the formula for the rule of thumb evaluation method??? I am supposed to compute this example: Arcadia

84. ## math

Solve for x. 7x + 9 = 6x - 5 A)x = -14 B)x = -4 C)x = 4 D)x = 14

85. ## algebra

The perimeter of a tennis court is 228 ft. The length is 42 ft longer than the width. Write a set of linear equations.

86. ## math

If is a line whose equation is y = 2x - 1, find the equation of the image of under each of the following trans? a. (x, y) → (x, y - 2) b. (x, y) → (x +3, y) c. (x, y) → (x - 3, y + 2)

87. ## Geometry

In rhombus PQSR, PQ=y+8 and QS = 4y-7. Find PQ. Also... In rectangle ABCD,AB=x+15, BC=x-8, and CD=2x+3. Find: 1)x. 2)AB 3)BC Thanks!

88. ## Pre-Cal

Perform the addition or subtraction. tanx - sec^2x/tanx tan^2(x)/tan(x) - sec^2x/tanx = tan^2x sec^2x / tanx then I use the identity 1+tan^2u=sec^2u I do not know what to do at this point.

89. ## Math

What mixed numbers fall between 5 and 6? 5 - - - - 6

90. ## physics

if velocity vector is changing but speed is constant, can there still be work

91. ## psy 230

In your own words, describe each of the five basic dispositional traits. Then, select one of the adjective pairs listed in the table for each of the five trait categories in Table 1.2 and describe where you think your personality falls in the spectrum of

92. ## biology

what is the definition of invertebrates

93. ## Financing and Accounting

What does rule of thumb evaluation method mean? no matter how many times i read this, I get different answers..and how would I calculate this or what is the formula for the rule of thumb evaluation method???

94. ## chemistry

When silver nitrate reacts with hydrochloric acid, what type of reaction takes place

95. ## Calculus

Find the value of tan2x, (pi/2)

96. ## Calculus

If √2cos(x)-1 = (1+√3)/2 and √2cos(x)+1 = (1-√3)/2, find the value of cos4x.

97. ## russia

why do geographers disagree about the location of russia?

98. ## Accounting

Write a 200- to 300-word response to the following: You have been hired into a new company to oversee the accounting department. What type of financial reports would you expect to see in your department? How will you use the financial reports available to

99. ## computers

the names of the pioneers/people involved

100. ## Chemistry *URGENT*

URGENT help! 3. A rock sample was dated using potassium-40, Neasyrenebt ubducated tgat 1/8 of the original parent isotope is left in the rock sample. How old is the rock? 5. When a sample of lava solidfied, it contained 28g of uranium-238. It that lava

101. ## English

Look at the pictures and mark an O on the picture in which you can do the activity. However, if you cannot do the activity in the picture, mark an X. And then say as follows. (Is the passage above grammatical? Check the sentences,please. Do we have to use

102. ## ENGLISH

HOW MANY SYLABLES DOES THE WORD RESPONSIBLE HAVE ?

1. 36/7= _ _ 2. -8-m>-19

104. ## English

1. Look at the living puma. 2. Look at the live puma. 3. Look at the puma alive. 4. Look at the puma that is alive. (Are all expressions grammatial?) 5. He succeeded to his father's estate. 6. He succeeded in solving a problem. 7. He succeeded in passing

105. ## English

1. Thanks to his father, he succeded in his business. Instead of 'thanks to' can we use 'because of' or 'owing to'? Are they the same in meaning? Does 'thanks to' have a positive connotation? 2. He retired from the work. 3. He retired from the workplace.

106. ## MATH

PLEASE COULD SAME ONE HELP ME. THREE 2 INCH DIAMETER TENNIS BALLS SNUGLY FIT IN A CYLINDRICAL CAN. THE BALLS TOUCH THE SIDE, TOP AND BOTTON OF THE PLASTIC CAN. HOW MUCH AIR IS IN THE CAN? ROUND DECIMAL ANSWERS TO THE NEAREST TENTH OF A CUBIC INCH. SHOW AND

107. ## classroom instruction

compare and contrast approaches for teaching English language arts in a constructivist classroom and in a traditional classroom. can you help me find some info please.this is what i have so far but i am not sure if it is correct. Constructivism is a view

108. ## Math

State domain, range, period, vertical asymptotes, zeros, symmetry and y-intercept of y = -2tan(3x + 180°) + 3 I just need to know if there is a formula to find the vertical asymptotes, symmetry, and zeros or do I have to solve it graphically. Thanks.

109. ## COM 150

Some athletes have taken drug tests to prove they are not on steroids. does this sentence contain a regular or irreagular verb, and why?

110. ## social study

how did the reformation in great britain affect the colonization of the new world? explain.

111. ## chemistry

how many grams of H are needed to produce 1.80grams of H2O

112. ## English

1. I like oil paintings better than watercolors. 2. I like oil painting better than water colors. (Which one is correct, #1 or #2?) 3. I have two life stills, a portrait and three landscapes. (Is this one correct as well?) 4. I go there to see still lifes

113. ## Physics

On a bright sunny day the irradiance on the surface of the ocean is 1.6*10^17 photons cm^-2 s^-1. If k=0.02 m^-1 a) How much light is left (irradiance) at 15 m? b)at 75m?

114. ## Physics

At a spot in the ocean, the surface irradiance is 7.8*10^16 photons and k=.14 m^-1. At what depth does the euphotic zone end?

115. ## Physics

Your airplane leaves 20 degrees N(linear velocity= 845 nm/h) heading to a point due north at 25 degrees north (linear velocity = 815 nm/h). You set the autopilot dor due north and go to sleep. If your flight time is 30 minutes, how far off and in what

116. ## college

Sammy takes 5 hours longer to complete 300 lines of code the Martin. Together Sammy and Martin can complete the code in 6 hours.

117. ## Physics

What is the instantaneous acceleration (both magnitude and direction) due to the coriolis force on an object moving at 160 m s^-1 to the west located at 17 degrees south, 86 degrees west?

118. ## sci275

Provide a brief summary differentiating conservation and preservation. Do you believe that humans can harvest forest resources in an environmentally friendly way? Or, should national forests be left in their natural state in which resources are not used to

119. ## social study

what was the native americans reactions over trime?

120. ## social study

how did the beliefs of the quakers influence the evolution of pennslyvania in terms of its economy and social structure?

121. ## Need an opinion

I'm doing a speech on teen suicide and I need your opinion. I start with an introduction, statistics, and why I chose the topic. But for these three things is the order correct or should switch them. If you were listening what would you like to hear first.

For many global companies, China represents a very attractive market in terms of size and growth rate. Yet, it ranks lower in terms of economic freedom and higher in political risk than other country markets because it has a communist government. Despite

123. ## math

Describe what the graph of interval [-4,10] looks like.

124. ## Government

I have to list the majority and minority leader of both the house and senate: House majority -Steny Hoyer House minority -John Boehner Senate majority - Harry Reid Senate minority - Mitch McConnell I believe this is correct but in the senate it also lists

125. ## Chemistry-Equations

Iron(III) oxide is formed when iron combines with oxygen in the air. How many grams of Fe2O3 are formed when 16.7 g of Fe reacts completely with oxygen?

126. ## Help

5.6 x 10 the the 5th power

127. ## english

mountain :high :_________: deep

128. ## math

The game of dots is played by rolling a fair die and receiving \$1 for each dot showing on the top face of the die. What cost should be set for each roll if the game is to be considered a fair game?

A tanker can hold 40,000 kL, OR 40,000 L OR 40,000 mL? I chose 40,000 kL Please advise, Thank you

130. ## 3rd grade social studies

What effect have vaccinations had on the lives of people today?

131. ## chemistry

why NaOH must be standardized?

132. ## Oceanography

What is the instantaneous acceleration (both magnitude and direction) due to the coriolis force on an object moving at 160 m s^-1 to the west located at 17 degrees south, 86 degrees west?

133. ## math

aksed find the equation oft he parabola y=ax^2 + bx +c. there are four given clues 1) the y-intercept is (0,6) 2) the curve goes throuth (4,5) 3) the curve has aturning point at (2,3) 4) the line of symmetry is x=1 a)is it not possible for all four clues

134. ## math

a business lady leaves her laundry every Monday, then picks it up the next monday as she drops off more. If she wears a clean blouse every day of the week, how many blouses must she have, in order to visit the laundry only on Mondays?

135. ## Physics

Two shuffleboard disks of equal mass, one orange and the other yellow, are involved in a perfectly elastic glancing collision. The yellow disk is initially at rest and is struck by the orange disk moving initially to the right at 5.60 m/s. After the

136. ## chem

Analyze the chemical reactions that take place when a biological catalyst combines with a reactant (substrate) to form an unstable intermediate.

137. ## Accountng

On january 1st, NetSolutions had a debit balance of \$1,250.00 in the Office Supplies account. During the month, Netsolutions purchased \$245.00 and \$610.00 of office supplies and journalized them to the office supplies asse account upon purchasing. On

138. ## Physics

Calculate the magnitude of the linear momentum for the following cases. the Earth (mass = 5.98*1024 kg) moving with an orbital speed equal to 2.98*10^4 m/s. so i did 5.98*10^24 times 2.98*10^4=1.78204 × 10^29 But homework website doesn't accept this

139. ## PHYSICS

A stereo amplifier creates a 3.5 V potential difference across a speaker. To double the power output of the speaker, the amplifier's potential difference must be increased to: A. 7.0 V B. 9.9 V C. 12 V D. 4.9 V

140. ## Chemistry-Equation

How many moles of H3PO4 are produced when 142.0 g P4O10 reacts completely to form H3PO4?

141. ## Chemistry-Equation

How many moles of aluminum are needed to react completely with 2.4 mol of FeO?

I am unsure how to research finding three Control mechanisms used in a company. Thanks in advance.