# Questions Asked onFebruary 24, 2011

1. ## physics

A 214 kg boat is sinking in the ocean. The boat's weight is partially offset by the 790 N buoyant force of the water. What is the net acceleration of the boat?

2. ## Algebra 2

Add(1/12X^4+6/7X^3+3/8X^2+5)+ (-7/12X^4+5/8X^2-5). Thank you so much for your help.

3. ## comsumer math

victoria has a total of twenty-four nickles and quarters. she has ten more quarters than nickles.how much money does she have?

4. ## Research Practicum

I'm conducting a research project on "to what extent are college students addicted to text-based college communication?" this is my survey I created. Is this a good survey? and how do I evaluate my responses from, let's say, 50 surveys to table data to

5. ## math

(9x^4+0x^3+8x^2+17x-20)÷(-3x-4)

6. ## ap chem

I'm supposed to find the mass of NaCl in 1 L & the mass of H20 in 1 L. I'm given NaCl solution. 1% by mass. The Density is 1.071 g/mL. I know the answer for NaCl is 10.71 g, but I don't know where to start to get to this. Could you lead me in the right

7. ## ENGLISH

Please read for errors and correct them. Thank you for your request for a credit card with our store. Before we can issue you a credit card, we must ask you to furnish the information on the enclosed credit application. When we receive it we will process

8. ## Algebra 2

write an equation in standard form for the ellipse with endpoints of the major axis (-1,4) and (1,6)and endpoints of the major axisi at (-4,1) and (6,1) i have no idea how to start this

9. ## Algebra 2

Divide. x^2+5x-26,x+7 Thank you.

10. ## equivalnet fractions

what are two equivalent fractions for 5/15?

11. ## Excel

Like obtaining the sum of squares in an area in Excel =sumsq(a1:g1) I would like an algorithm/module that will give me the sum of cubes. Can anyone help me? thankyouuuuuuuuuuu!

12. ## Chemistry

How do I prepare 80 mL of 0.10 M HC2H3O2 from a 6.0 M solution of Acetic acid? How do I prepare 80 mL of 0.10 M NH3 from 6.0 M ammonia?

13. ## ENGLISH

Please Check for any errors I wish to compliment you on the radio ad you presented to the committee yesterday. This ad will be a fine complement to our advertising campaign for Wiz our new product. By the time, we have our next meeting you may be able to

14. ## Physics

If the speed of light through material Z is 2.5×10^8 m/s, what is this material’s index of refraction? The speed of light in a vacuum is 3 × 10^8 m/s.

15. ## English

Please find errors and correct them. To all ABC Internet Customers we have resolved the problem we were having with the Internet backbone for Southern Illinois. There was an NAP connection that was having trouble in Atlanta, Georgia. This is been resolved.

16. ## Physics

A ray of light has an angle of incidence of 30.4 degrees on a block of quartz and an angle of refraction of 20.7 degrees. What is the index of refraction for this block of quartz?

17. ## Physics

A ray of light is incident at an angle of 51.1 degrees on the surface of a piece of crown glass whose index of refraction is 1.52 degrees. What is the angle of refraction? Answer in units of .

18. ## Good Thesis Statement?

Is this a good thesis statement? John Keats' odes and letters advance the Romantic literary movement through use of three common themes: living life to the fullest, overcoming hardships, and placing passion over reason.

19. ## statistics

The results of a medical test show that of 66 people selected at random who were given the test, 3 tested positive and 63 tested negative. Determine the odds in favor of a person selected at random testing positive on the test.

20. ## math

A music store offers a prize to a computer who can guess the closest, the number of jelly beans that fill a litre jar on the counter. Estimate the number of jelly beans in the jar if 1 jelly bean is approximately 2cm long (h) by 1.5cm in diameter(d)

21. ## math

Tamara invests \$30,000 in an account earning 7% interest per year over the next 4 years. How much (simple) interest will her investment earn in total?

22. ## maths

In Newtopia, inflation runs at 15%. A home entertainment unit currently sells for \$2000 A)How much would you expect it to cost in a year`s time? B) How much would you expect it to cost in two years time?

23. ## maths

Tamara invests \$30,000 in an account earning 7% interest per year over the next 4 years. How much (simple) interest will her investment earn in total?

24. ## maths

In Newtopia, inflation runs at 15%. A home entertainment unit currently sells for \$2000. A) How much would you expect it to cost in a year`s time? B) How much would you expect it to cost in two years time?

25. ## maths

A) Sam jogs 6 laps around a circular running track which has a radius of 30 meters. How far does she jog in total? B)Tom and Jerry decide to find the perimeter of their garden. Tom measures the length as 5.2 meters while Jerry measures the width as 370cm.

26. ## chemistry

At a pressure of 405 kPa, the volume of a gas is 6.00 cm3. Assuming the temperature remains constant, at what pressure will the new volume be 4.00 cm3?

27. ## English Now

Correct any errors found.Thank you! Thank you for your request for a credit card with our store. Before we can issue you a credit card, we must ask you to furnish the information on the enclosed credit application. When we receive it we will process your

28. ## trigonometry

Can you please show me the steps: Derive the identity for sin 3x in terms of sin x.

29. ## CALCULUS 3

Use the triple scalar product to determine whether the given points lie in the same plane. A(1, 2, 3), B(3, -4, 8), C(7, -1, 1), D(5, 5, -4)

30. ## Maths

Chris wants to put a concrete path and a fence around his rectangular garden. The concrete path will be 1 meter wide and the fence will go around the edge of the path. The garden itself measures 5 meters by 8 meters. A)Calculate the perimeter of the fence.

31. ## maths

A farmer needs to spread fertiliser over a paddock measuring 40m by 80m. The instuctions on the fertiliser bag say to use 80grams per square meter. How many kilograms of fertiliser will be needed?

32. ## maths

A coffee urn holds 12 litres when full. Harry fills coffee cups from the urn until the coffee runs out. A)How many 140ml cups of coffee can be filled from the urn? B)At the end there is not enough coffee left to fill a cup, Harry decides to drink it

33. ## maths

A circular pool has a diameter of 3m and is filled to a depth of 70cm. Mr Thorne climbs into the pool and submerges for ten seconds while his son measures the new depth at 72cm. Calculate Mr Thorpes volume.

34. ## maths

(Write the following expressions using numbers,parentheses and other mathematical symbols. You do not need to colculate the results) A)Double the sum of twenty-five and eight. B)The quotient of fifteen and three subtracted from the product of four and

35. ## Chemistry

In a body of fresh water, a dissolved oxygen concentration of 0.262 or higher is usually needed to maintain a healthy aquatic ecosystem. For a lake to maintain this concentration, what is the maximum water temperature?

36. ## Chemistry

In a body of fresh water, a dissolved oxygen concentration of 0.262 or higher is usually needed to maintain a healthy aquatic ecosystem. For a lake to maintain this concentration, what is the maximum water temperature?

37. ## Chemistry

In a body of fresh water, a dissolved oxygen concentration of 0.262 or higher is usually needed to maintain a healthy aquatic ecosystem. For a lake to maintain this concentration, what is the maximum water temperature?

38. ## chemistry

Explain how you would prepare these solutions from powdered reagents and whatever glassware you needed: a. 2.0 L of 1.5 M KOH the answer is: a. To prepare 2.0 L of 1.5 M KOH, measure out 168 g of KOH and place it into a 2 L volumetric flask. Add water to

39. ## Statistics

Suppose that 92% of all SFSU students own a cell phone. Find the probability that 7 out of 10 random selected SFSU students own a cell phone

40. ## Statistics

Suppose that 92% of all SFSU students own a cell phone. Find the probability that 7 out of 10 random selected SFSU students own a cell phone. explain how answer was arrived

41. ## math

Explain why the simultaneous equations y=1/2x+2 and 2y-x:4 have an infinite number of solutions. What is diffrent about these equations compared with the equations in the first question ( the equations were y=2x+3 and 5y-10x=5)? What is similar? ( include

42. ## Computer

How to write an algorithm to find the fibonacci series ??? Help:/

43. ## math

Tierra, Nico, and Alex had \$865 altogether. Tierra spent 2/5 of her money. Nico spent \$40,and Alex spent twice as much as Tierra. If the three had the same amount of money left, how much money did alex have in the begging?

44. ## math

Tierra, Nico, and Alex had \$865 altogether. Tierra spent 2/5 of her money. Nico spent \$40,and Alex spent twice as much as Tierra. If the three had the same amount of money left, how much money did alex have in the begging?

45. ## haelth

A well-stocked first-aid kit should include which of the following items? A. A bottle of adult multivitamins B. Sterile gauze in assorted sizes C. A small knife to remove splinters D. Injectable steroids

46. ## math

Tierra, Nico, and Alex had \$865 altogether. Tierra spent 2/5 of her money. Nico spent \$40,and Alex spent twice as much as Tierra. If the three had the same amount of money left, how much money did alex have in the begging?

47. ## phsics

at what speed would a car need to hit and knock down a metal 7 ft. lampost on a grass surface with a plastic bumber about a foot off the ground, and what damage would be done to the car

Proofread for spelling Capilization, commas error,any other mistakes, and correct them for me. To all ABC Internet Customers we have resolved the problem we were having with the Internet backbone for Southern Illinois. There was an NAP connection that was

49. ## physics

prepare a standard solution of oxalic acid with a concentration of 0.05mol.dm3. a report of the investigation. give the aim, apparatus, method and results.

50. ## Business Communications

Crystal agreed to serve on a company’s advisory board and now has to contact them to say she cannot attend a scheduled meeting where she was to be one of the several key speakers. What should she do? a) Let the company know she cannot attend and that

51. ## MAth

Can you tell me if the fv function or the pmt functionn use to find the interest rate. I think it is the pmt. Am I right or wrong.

52. ## Business Communications

Which of the following would be the MOST useful strategy for learning to communicate effectively with international employees working in your overseas divisions? a) Devote time to learning the rules for communicating with people from each of the countries

53. ## Business Communication

The dean of students is announcing a reception for new nontraditional students. Which of the following is the BEST subject line? a) Nontraditional Students b) Reception to Welcome Nontraditional Students Who are Attending the University for the First Time

54. ## Business Communication

Many companies have found that family-friendly policies: a) are good recruiting tools, but often result in relocation failures. b) are one of the six leading reasons that new managers fail. c) have given employees with children higher overall compensation

55. ## Business Communication

Which of the following would be classified as an informative or positive message? a) A request for information b) An announcement of a policy that reduces benefits c) A memo for the file recording actions and rationales d) A letter to an employer

56. ## marketing

If you are using the Internet and Web resources for a business publication, under which conditions is it not necessary to include a citation?

57. ## physics

One side of the roof of a building slopes up at 35.5°. A student throws a Frisbee onto the roof. It strikes with a speed of 15.0 m/s and does not bounce, but slides straight up the incline. The coefficient of kinetic friction between the plastic and the

58. ## physics

a rock is dropped from the top of diving platform into the swimming pool below. will the distance traveled by the rock in a 0.1 second interval near the top of the flights be the same as the distance covered in a 1.1 second interval just before it hits the

59. ## Business Communication

Indicate the alternative that both correctly evaluates the following sentence and correctly explains the reason for the evaluation. “As soon as you provide your date of birth on Line 2, your application for a flexible spending account will be

60. ## physics

A ball is thrown straight upward and then returns to the earth. choosing the positive direction to be upward, sketch a graph of the velocity of this ball against time. where does the velocity change direction? Explain?

61. ## physics

Some European trucks run on energy stored in a rotating flywheel, with an electric motor getting the flywheel up to its top speed of 120 ð rad/s. One such flywheel is a solid, uniform cylinder with a mass of 270 kg and a radius of 1.10 m. (a) What is the

62. ## physics

A+(NOT A)B=? {BOOLEAN ALGEBRA)

63. ## physics

A uniform spherical shell of mass M = 8.00 kg and radius R = 0.550 m can rotate about a vertical axis on frictionless bearings. A massless cord passes around the equator of the shell, over a pulley of rotational inertia I = 0.130 kg·m2 and radius r =

64. ## English

Can you check these sentences for me please? Thank you very much. 1) He doubts about suicide (wrong) He is doubtful about /he has doubts about suicide. 2) A period of doubt follows, in which (not when?) the hero plans his revenge. 3) Every man is scared:

65. ## physics

A magician pulls a tablecloth from under a 200 g mug located 30.0 cm from the edge of the cloth. The cloth exerts a friction force of 0.105 N on the mug, and the cloth is pulled with a constant acceleration of 3.50 m/s2. How far does the mug move relative

66. ## Chemistry

chemist relate units of counting, of mass, and of volume to a single quanity called the _____.

67. ## math

find the lowest common multiple of 30,40 and 70? -|-8|- |-11-8|

68. ## acc250

Please post your response to the following: Chapter 5 discusses internal control. Why are internal controls and audit trails important in a computerized accounting system?

69. ## Acc

A crane with the mass of 500kg,lifting an object of the mass of 50kg, what wil be the gravitational potential energy of a crane?. I need the equation and the answear.

70. ## Child Care Mangment

An apprpriate science activity for a child 6 to 12 years of age is: A. collecting leaves. B.using a compass to find specific sites. C.growing plants froom seeds. D. experimenting with magnet. Thanks

71. ## math

use integration by parts to prove the following reduction formula: |cos^nx dx =1/n cos^(n-1)xsinx +(n-1)/n |cos(n-2)xdx

72. ## grammar

A potluck dinner is when friends or neighbors bring food to share.

73. ## subject mismatch

what wrong with this sentence The purpose of the microscope was invented to allow people to see tiny things.

74. ## physics

A+(NOT A)B=A+B How do you get A+B as the answer

75. ## IPC

The specific heat capacity of aluminum is 0.22 cal/g°C. How much energy needs to flow into 20.0 grams of aluminum to change its temperature by 15°C? How do i set this problem up to solve it?

76. ## matching the subject

The purpose of the microscope was invented to allow people to see tiny things.

77. ## computers

What are contributing factors if you were in the market for commercial paper prior to a final purchase?

78. ## chemistry

To make 10 mL of 25 mM sodium standard, what volume of 1 M NaCl stock should be used? 250 mL 2.5 mL 0.25 mL 0.5 mL None of these 400 mL

79. ## chemistry

To make 10 mL of 25 mM sodium standard, what volume of 1 M NaCl stock should be used? 250 mL 2.5 mL 0.25 mL 0.5 mL None of these 400 mL

80. ## chemistry

The label of a spread says that it contains, per 100 g product: 80 g fat; 20 g saturated fat. What is the percentage of saturated fatty acids expected in the fat extracted from this spread? 25% 80% none of these 20% 16%

81. ## 12th grade English

arguments and counterarguments in "A Vindication of the Rights of Woman"

82. ## Chemistry

What is the pH of a solution that is 0.10 M CH3NH2 (methylamine) and 0.15 M methylammonium chloride?

83. ## CRIMINOLOGY

What types of social conflict exist in American culture today? Are they productive conflicts, producing results for those who need help?

84. ## biology

Explain that the energy needed to produce ATP comes from food during cellular respiration.

85. ## Hum 111

Week Nine DQ 2 Post a 150- to 300-word response to the following discussion question by clicking on Reply: Think of something you would like to persuade others to believe or agree with you. Which techniques should you use to present those ideas and

86. ## Business Communication

Many organizational situations involve an audience that consists of a group of people. Which is an appropriate approach to analyzing this type of audience?

87. ## organic chemistry

suppose solute A has a partition coefficient of 4.0 between diethyl ether and water. Demonstrate that if 100mL of solution of 5.0g of A in water were extracted with two 25mL portion of diethyl ether, a smaller amount of A would remain in the water than if

88. ## maths

this is urgent y=1/2x - 1 if x equals 4 what does why equal? please help

89. ## Physics

How many calories are absorbed by a copper spoon with a mass of 200 grams as it changes from 28°C to 33°C? A) 0.00027 B) 3 C) 90 D) 13,000 And this one. How do i solve this one?

90. ## calculus

The fee per ton of pollution is given by A(x) = F(x)=x. Write a piecewise de nition of A(x). What is the limit of A(x) as x approaches 4,000 tons? As x approaches 8,000 tons?

91. ## calculus

A state charges polluters an annual fee of \$20 per ton for each ton of pollutant emitted into the atmosphere, up to a maximum of 4,000 tons. No fees are charged for emissions beyond the 4,000-ton limit. Write a piecewise de nition of the fees F(x) charged

92. ## calculus

Sketch the graph of F(x).

93. ## calculus

Given f(x) = x3, evaluate lim h->o f(a+h)-f(a)/h

94. ## physics

A mass m = 0.225 kg on a frictionless table is attached to a hanging mass M = 0.330 kg by a cord through a hole in the table (see the figure). Find the speed with which m must move in order for M to stay at rest if r = 27 cm.

95. ## American Government: HELP

I already did my part and got two other peoples opinions. Could you just give me one more opinion on this matter? Answer the following questions based on your knowledge of civil law and the above scenario. The answer for each question should be at least

96. ## physics

The velocity of a 2.5 kg block sliding down a frictionless inclined plane is found to be 1.58 m/s. 1.40 s later, it has a velocity of 7.32 m/s. What is the angle of the plane with respect to the horizontal (in degrees)?

97. ## 3rd grade math

How do yu draw an array for the number 88

98. ## Math

Write 1.87 as a mix number

99. ## French

I am writing a narrative with that involves multiple verbs in the PC/l’imparfait within the same sentence. I suspect there are special procedures you follow when conjugating in this situation, but I don’t remember what. I remember something about using

What is customer focus?

101. ## mat117

Describe the mathematic process of canceling like factors when working with rational expressions. Demonstrate this with an example

102. ## Chem

how many grams of NH3 are required to completely react with 40.0 grams of NO.

103. ## Math

A tabletop is made of two layers of plywood. The top layer is .584 inch thick. The bottom layer is .258 inch thick. What is the total thickness of the tabletop?

104. ## math

is 2311 a prime or composite number?

105. ## Math

1.16 divided by 6.148? i got the answer, I need help working it out.

106. ## Chemistry

Can someone please explain me how to do this problem? A 25mL solution of 0.5 M NaOH is titrated until neutralization into a 50mL sample of HCl. What was the concentration of the HCl?

107. ## Interpretation of fiction

I was wondering if anyone has read the novela "Aura" by Carlos Fuentes. If so I am writing a paper about what the purpose was for the use of magic in the story. I think that magic was used in order to seduce the main character Felipe. I think that the

108. ## Math

Multiply eight and eighty-eight hundredths by two and three tenths? can show the work please.

109. ## Physics

The force on a 0.80 m wire that is perpendicular to Earth's magnetic field is 0.12 N. What is the current in the wire?

110. ## Chemistry

The indicator Methyl Yellow changes from red to yellow over the pH range of 2.9-4.0. A second indicator, Bromcresol Purple., changes from yellow tored over the pH range of 5.4 - 6.8. You conduct an experiment in which a sample of HCl is titrated with NaOh,

111. ## Algebra

The Graph of F(x) = (x^2 -2x -8)/(x+6) has which of the following ? a) point of discontinuity b) vertical asymptote c) both of the above d) neither of the above i guess a) not sure, can someone help me

112. ## Microbiology

People with Rhinovirus infections of the nose and throat have an 80-fold increase in kinins and no increase in histamine. What do you expect for rhinoviral symptoms? What disease is caused by rhinoviruses?

113. ## Interpretation of fiction

The novella Aura. My thesis statement for my paper is: The use of magic in this story serves for the purpose of seducing Felipe. Does this statement sound ok?

114. ## THE AGE OF JEFFERSON TO THE AMERICAN EXPANSION

Which of the following was true of the Judiciary Act of 1801? A. It expanded the federal court system. B. It was opposed by the Federalists. C. It packed the Supreme Court with Democratic Republicans. D. It reduced the power of the federal courts.

115. ## math

f(x)=x*x+7x-10

116. ## English

Are news article summaries written in past or present tense? For Example: "The Author describes how the 4 year old boy works at construction sites" OR "The Author described how the 4 year old worked at construction sites" Thank you

117. ## English

Can you please check these sentences for me, please? Thank you very much. 1)The avenger is involved in complex planning. 2) A lot of murders occur within the play. 3) The hero becomes more and more isolated throughout the play (better: within the play, as

118. ## chemistry

if 50 grams of a substance with temperature of 20 degrees C and a specific heat of 2 is mixed with 200 grams of water at 40 degrees C, what will be the equilibrium temperature of the mixture?

119. ## Math

What is 23.56 divided by 1000 answer = 0.02356 23.56 x 1000 answer = 23560 can you show me how to work it out.

120. ## earth

Can someone give me a better idea of Precipitation Variability ? and the 4 types of atmospheric lifting, I'm confused and want to understand this better. Convective Lifting Orographic Lifting Frontal Lifting Convergent Lifting

5-2+3=

5-(2+3)=

9(3)+4=

9(3+4)=

125. ## Physics Mehanics

In the figure below, wheel A of radius rA = 11 cm is coupled by belt B to wheel C of radius rC = 23 cm. The angular speed of wheel A is increased from rest at a constant rate of 1.6 rad/s2. Find the time needed for wheel C to reach an angular speed of 110

126. ## Physics Mehanics

A meter stick is held vertically with one end on the floor and is then allowed to fall. Find the speed of the other end when it hits the floor, assuming that the end on the floor does not slip. (Hint: Consider the stick to be a thin rod and use the

127. ## finance

company issuing \$1,000 par value bond that pays 7% annual interest maturing in 15 yrs. Investors willing to pay \$958 for bond. Flotation cost 11% of market value and tax rate 18%. What will be theafter-tax cost of debt?

128. ## marketing

A large community hospital, River Valley, has recently begun to acquire physician practices. At issue is whether to rename each acquired practice “River Valley Associates” or to leave each name alone. 1. What are the trade-offs River Valley should

129. ## math/algebra

8*2 divided by 4=

130. ## math/algebra

If n=4 what does 3x+5=

131. ## english

What are some product that are essential to your quality of life besides cell phones and ipod

132. ## Microbiology

People with Rhinovirus infections of the nose and throat have an 80-fold increase in kinins and no increase in histamine. What do you expect for rhinoviral symptoms? What disease is caused by rhinoviruses?

133. ## english

Which is the most effective coordinating conjunction to join the following independant clauses? The wheather forecast calls for more rain today. We will have to cancle our beach outing

134. ## Chemistry

You are titrating 35.00 mL of a 1.20 M solution of HCOOH with a strong base. If you add 1.00 mL of a 3.60 M solution of sodium hydroxide, what is the final pH of the acid solution? The Ka for HCOOH is 1.8 X 10-4.

135. ## Physics

A con of soda displaces 3.79 * 10^-4 m^3 of water when completely submerged. Each 0.018 kg can contains 3.54 * 10^-4 m^3. Compare the buoyant force on a can of diet soda of density 1001 kg/m^3 to the force on a can of regular soda of density 1060 kg/m^3.

136. ## Calc

limit as h approaches 0 : ((23.1^(6+h))-(23.1^6)) all that divided by (h)

137. ## calculus

Please help with this. I need the first derivative of f(x)=4(x+squareroot (x(8-x)) and then the second derivative of this to show by the second derivative test that it is a local maximum. This is difficult to put into form here and I hope I have got it

138. ## social studies

what was the name of a hired soldier

139. ## algebra 2

Divide. x^2+5x-26,x+7 Thank you.

142. ## Math

If you have 3 graphs plotted on the same page and can't tell just by looking at them which one is linear (they all have a slight curve and some linear features), how do you use the y-intercepts to determine this?

143. ## Cal

The circumference of a sphere was measured to be 86.000 cm with a possible error of 0.5 cm. Use linear approximation to estimate the maximum error in the calculated surface area and Estimate the relative error in the calculated surface area.

144. ## victoria Ci

We find an electric field of magnitude E = 1.2 x 107 V/m across a particular nerve membrane. The potential difference between the interior and exterior surface of the membrane is 65 mV. The thickness of the membrane is closest to

145. ## Physics

An Atwood's machine consists of masses m1 and m2, and a pulley of negligible mass and friction. Starting from rest, the speed of the two masses is 3.80 m/s at the end of 3.16 s. At that time, the kinetic energy of the system is 77.0 J and each mass has

146. ## english

thesis statement on jack the ripper

147. ## social studies

type of art made from tiny pieces of stone

149. ## calculus

Given f(x) = x^3, evaluate lim h-->o f(a+h)-f(a)/h

150. ## cal

Let f(x)=-5e^(x+1)+e^8 . find f'(0)

151. ## math

f(x)=2e^(xcosx) f'(x)=?

152. ## math

f(x)=sin(e^(4x)) f'(x)=??

153. ## algebra 2

Divide and check. Write your answer using none negative exponents. 40x^2y^2/5x^4y^2. Thank you.

154. ## Physics

Two point charges are separated by 10.0 cm and have charges of 2.0 μC and -2 μC, respectively. What is the electric field at the point midway between the two charges? (k = 8.99 x 109 N.m2/C2) A. 28.8 x 10 6 B. 14.4 x 106 C. 7.19 x 106 D. 3.59 x 106 E.

155. ## Physics

Increasing the voltage across the two plates of a capacitor will produce what effect on the capacitor? a. increase charge b. decrease charge c. increase capacitance d. decrease capacitance how do i approach this one?

156. ## Physics

Doubling the voltage across a parallel plate capacitor does not double which of the following? a. the charge b. the electric field between the plates c. the energy stored d. the electric force on the plates e. both a and b is the answer A if not then how

157. ## Physics

A nichrome wire has a radius of 0.50 mm and a resistivity of 1.5 ´ 10‑6 W‑m. What is the resistance per unit length of this wire?

158. ## Physics

Which process will double the power given off by a resistor? a. Doubling the current while doubling the resistance b. Doubling the current by making a resistance half as big c. Doubling the current by doubling the voltage d. Doubling the current while

159. ## Math

How do you multiply monomials without an exponent as one of the numnbers? The problem is 1 to the 4th times 1.

160. ## chemistry

The formation of nitroanalyine (an important intermediate in dyes, called ‘fast orange’) is formed from the reaction of ortho-nitrochlorobenzene (ONCB) and aqueous ammonia. (See Table 3-1 and Example 9-2.) The liquid-phase reaction is first-order in

161. ## social studies

the general term for a variety of groups who attacked roman towns

162. ## math

What is the greatest and least possible product you can make using the digits 1,3,5,6 and 7 in the multiplication problem below? Use each digit only once,

163. ## science

How to determine the molarity of a 1.8% NaCl solution.

164. ## calculus

The fee per ton of pollution is given by A(x) = F(x)=x. Write a piecewise de nition of A(x). What is the limit of A(x) as x approaches 4,000 tons? As x approaches 8,000 tons?

165. ## social studies

specific group that plundered rome. 5 letters.

166. ## Calc

Derivative of: (exp(8x^4))(5x^3+9)^3 ___________________________ (divided by) (22x^2+4x-20)^2

167. ## Trigonometry (Logarthims)

Give checks to the following two questions Use logarithms and the law of tangents to solve the triangle ABC, given that a=21.46 ft, b=46.28 ft, and C=32°28'30" without logarithms i can do this problem easily and i have. but when i try solving it with

168. ## statistics

If μ =10 and σ =4 for a distribution of sample mean, with n=16 for each mean, how far above the population mean (in %) is a sample mean score of 12

169. ## Algebra 1

When a plane flies into the wind, it can travel 3000mi in 6 hr. When it flies with the wind, it can travel the same distance in 5 hr. Find the rate of the plane in still air and the rate of the wind.

170. ## physics

A 10 amp fuse is connected in series to 4 identical 5 ohm resistors in parallel with each other. What is the maximum size battery that could be connected without blowing the fuse?

171. ## math

How do you make this decimal 0.85 in simmpleiest form? And what will be the new number?

172. ## Math

I have 5 books. Each book weighs 1 kilogram 250 grams. How much is the total weight?

173. ## Science

Whats a molecule?

174. ## Economics

If all the wealth in the world were distributed evenly, how much money would each person have? How would this affect the everyday lives of westerners? Thanks for your help. Any references would be appreciated.

175. ## trig

an art student wants to make a string collage by connecting six equally spaced points on the circumference of a circle to its center with sting. What would be the radian measure of the angle between two adjacent pieces of string, in simplest form?

176. ## calculus

let f(x)=sqrt x+4. Calculate the difference quotient f(5+h)-f(5)/h for h=.1 h=.01 h=-.01 h=-.1

177. ## physics

A student applies an upward force of 56 N to a 5.6-kg physics textbook. Find the book’s acceleration (positive for up, negative for down). answer in miles/seconds squared.

178. ## physics

A man steps on his bathroom scale and obtains a reading of 243 lb. The spring in the scale is compressed by a displacement of -0.0480 inches. Calculate the value of its spring constant in (a) pounds per inch (b) newtons per meter.

179. ## physics

It is the year 2305 and the tallest structure in the world has an insane height of 3.19×106 m above the surface of the Earth. A pendulum clock that keeps perfect time on the surface of the Earth is placed at the top of the tower. How long does the clock

180. ## social studies

what is an arch that forms a celling or roof

181. ## Civics

What are some common goals a society would have?

182. ## Math

Lisa bought two equal pieces of fabric. She will cut squares for a quilt from the fabric. All together Lisa bought 5 yards 1 foot of fabric. What is the length of each piece of fabric?

183. ## math

the loan amount \$750.00 @ 6% rate for 135 days. what would the interest be.

184. ## math

If the base to a gutter and 12 feet from the base of a house, how many feet high on the house does the ladder reachIf th

185. ## Geometry

Are perpendicular lines the same as intersecting lines?

186. ## child day care management,health,safety,and nutrit

Q;Which of the following is an obstacle to learning for a beginning mover? A.knowledge of what elements of the movement to focus on B. chronic indifference characteristic between birth and age three. C.shorter time to monitor perceptual input from the

187. ## math

Create your own word problem that uses a system of equations to solve. Your problem must include the following words: beach,hammock,dance,and troll.

188. ## math

multiply the two binomial below (2x-3)(2x+3) the answer is 4x^2+9 is this correct

189. ## math

Among the royalty of the land of Pirnza are Velve, Brint, Draz, Flard, and Sorn.In no particular order, their titles are Queen, Marquis, duke baron, and duchess. Their ages are 25,30,35,40 And 45.From the clues given try to determine the age and Title of

190. ## chem

What type(s) of intermolecular force is (are) common to each of the following. (Select all that apply.) 1) Xe and methanol (CH3OH) a)london-dispersion forces b)dipole-dipole c)hydrogen bonding i put a and b but it was wrong 2)CH3OH and acetonitrile (CH3CN)

191. ## math

simplify the expression below (3x^2y-5xy+12xy^2)-(5xy^2+4xy) 3x^2y - xy + 17xy^2

192. ## child day care management,health,safety,and nutrit

Q;a plant in a classroom appears to be wilting.The children are asked to come up with as many possible explination for this as they can.They'r engaged in second stage of decision making,called A.groupthink B.herding ideas C.railroading ideas

193. ## math

3a^2b + 6a^2b 9a^4b^2

194. ## English

Cn you please help me with these sentences, please? Thank you very much in advance. 1) Do you mind if I change channel to the football match? 2) If there is an earthquake and I'm inside a building, I'll get (or I ge) under a table or desk. 3) If I'm out of

195. ## physics

Consider a square of side length a = 9.4 cm with charged particles at each of the corners.Three of the particles carry +9 nC of charge while the fourth particle carries -9 nC.In volts, what is the electric potential at the center of the square? Hint:

196. ## math

(3x-5)(2x -8) 5x^2+3

197. ## science

i need a science fair project that will last more than a week

198. ## English

Add it How are these words alike? add more. made,play,train...

199. ## science 5

ts the est source of power in toronto please tell me i need help

200. ## child day care management,health,safety,and nutrit

Q; introducing organized sporttts among young children is not recommended because A.this excludes the teacher or caregiver from a role in play B.they lack the necessary physical maturation needded C.they should be making their own rules D.they lack the

201. ## CALCULUS

Derivative of: (exp(8x^4))(5x^3+9)^3 ___________________________ (divided by) (22x^2+4x-20)^2

202. ## physics

how do i find the amount of work done when given mass and speed?

203. ## physics

A block with mass 0.55 kg on a frictionless surface is attached to a spring with spring constant 39 N/m. The block is pulled from the equilibrium position and released. What is the period of the system? answer in seconds...

204. ## MATH

how many one-inch square tiles will he need to cover a surface that is 2ft by 3ft

205. ## physics

A spring with spring constant 26 N/m is stretched 0.29 m in the positive x direction, referring to the figure. What is the spring’s restoring force (with its sign)? in newtons?

206. ## physics

A spring exerts a restoring force of 2.8 N to the right, in the positive x-direction. The spring constant is 7.3 N/m. Find the displacement of the end of the spring (with its sign). in meters??

207. ## physics

When the end of a spring is displaced from its rest position by 8.5 cm, the spring’s restoring force has a magnitude of 4.4 N. What is the spring constant? in N/m??

asked by gino intili
208. ## Chemistry

Cyclopropane reacts to form propene in the gas phase. The reaction is first order in cylclopropane and has a rate constant of at 485 . If a 2.5 reaction vessel initially contains 724 of cyclopropane at 485 , how long will it take for the partial pressure

209. ## Math

Every day for 11 days, Tylia saw 23 sport cars pass her bedroom window. Write a numerical expression to describe how many sports cars she saw in all. Rewrite the expression using the Distributive Property so that you can mentally calculate how many sports

210. ## Physical Science

a car has an acceleration of 4 m/s squared. What will the increase in it's velocity be after 2 seconds? If it started with a velocity of 30 m/s, what is its final velocity?

211. ## college physics

Two cars of equal mass are traveling as shown in the figure below just before undergoing a collision. Before the collision, one of the cars has a speed of 19 m/s along +x, and the other has a speed of 31 m/s along +y. The cars lock bumpers and then slide

212. ## math

show why two thirds of 9 and one third of 18 name the same number.use counters or draw a picture to explain your reasoning.

213. ## math

What multiplication fact can be found by using the arrays for 2x9 and 5x9?

214. ## Math

Fred says "To find 6x8,I can use the facts for 5x4 and 1x4." Do you agree? Explain.

215. ## chemistry

15ml of 0.325M NaOH is delivered into 35ml HOBr solution of unknown concentration.The pH of the final solution is 7.48. Ka for HOBr is 2.0 x 10-9at 25C. Find the number of moles of OBr- and HOBr in the final solution.

216. ## science

A rifle bullet travels 5000 feet in 4 seconds. what is the speed of the bullet?

217. ## science

I am researching on a butterfly named Holly Blue. I know they live in gardens and woodlands. I need help because I want to know what dangers they might face in a GARDEN that they need to avoid, what creatures they might encounter and what they can find in

218. ## Chem

Cyclopropane (C3H6) reacts to form propene (C3H6) in the gas phase. The reaction is first order in cylclopropane and has a rate constant of 5.87*10^-4 at 485degreesC. If a 2.5L reaction vessel initially contains 724 torr of cyclopropane at 485degreesC, how

219. ## MATH 12U

Mary leaves a dock paddling her canoe at 3m/s. She heads downstreamat an angle of 30 degrees to the current which is flowing at 4 m/s. a) How far downstream does Mary travel in 10s? b) What is the length of time required to cross the river ifits width is

220. ## Physical Chemistry

Assuming that the osmotic pressure of a sample of sea water at 10 C is 25.5 atm, calculate the work required under reversible conditions at this constant temperature to prepare 9 litre of pure water from this sea water. (Take the available volume of sea

221. ## Economics

If all the wealth in the world were distributed evenly, how much money would each person have? How would this affect the everyday lives of westerners? Thanks for your help. Any references would be appreciated.

222. ## Math

Let f(x^2/3). Find f(S) if S = {1,5,7,11}.

223. ## CHEMISTRY

How to determine the molarity of a 1.8% NaCl solution.

224. ## foreign language

Hi there! I know two languages so far English and Russian. (I know the Russian language as well as I know English.) So, I was wondering about a third language to take at the college. I want to take a European language, but I cannot decide. Among my top

225. ## french

can you unscamble eeienhtocasr

226. ## Chem

In lab, the ratio of moles C2O4^2-/Fe^3+ was 0.0063 to 0.0017, which is 3.7 . However, I am having a hard time deducing the formula and charge on complex ion. The unbalanced formula I had to use was: Fe^3+(aq) + C2O4^2+(aq) = Fex(C2O4)y^(3x-2y) Since the

227. ## Science

Which of these would cause a rapid change in the appearance of the Earth's surface? A. Erosion and deposition by a river B. Earthquake C. Summer waves on Galveston's beach D. Weathering of rocks by acid rain

228. ## Physics

A point on the rim of a 0.75 m diameter grinding wheel changes speed at a constant rate from 15 m/s to 21 m/s in 6.2 s. What is the average angular acceleration of the wheel in rad/s^2?

229. ## Science/Maths

I don't know where to start with it? A tube is set up for radioimmunoassay containing antibody with a capacity for binding 1ug antigen. Both labelled (50,000 counts per ug) and unlabelled antigen are added to the tube. Work out a formula to calculate the

230. ## English

1) Can you tell me if the word "counter of frozen food, frozen food counter" can be replaced by "freeze counter"? 2) Go through the arcades as far as the baker's. At the baker's turn left into Piccadilly Street. 3) Cross the road on the zebra crossing./ Go

231. ## math

how doo i do my my math homeeework:congruence problems.

232. ## college physics

Two cars of equal mass are traveling as shown in the figure below just before undergoing a collision. Before the collision, one of the cars has a speed of 19 m/s along +x, and the other has a speed of 31 m/s along +y. The cars lock bumpers and then slide

233. ## physics

It is the year 2305 and the tallest structure in the world has an insane height of 3.19×106 m above the surface of the Earth. A pendulum clock that keeps perfect time on the surface of the Earth is placed at the top of the tower. How long does the clock

asked by gino intili
234. ## math

what fraction is not equivalent 3/10,9/30,27/90,36/180

235. ## math !!!! :O

Tierra, Nico, and Alex had \$865 altogether. Tierra spent 2/5 of her money. Nico spent \$40 , and Alex spent twice as much as Tierra. If the three friends had the same amount of money left, how much money did Alex have in the beginning.

236. ## Chemistry

What is the pH when 3.46 mL of 2.37 M KOH is added to 26.9 mL of a 1.78 M solution of formic acid (HCOOH)?

237. ## Websites

Could you give me links to websites that have accurate and good information, such as some univeristy websites that give out good homework information, etc.

238. ## physics

A mass is given an initial velocity up a frictionless 28 deg. incline and reaches a vertical hight of 1.35m. What was the initial velocity?

239. ## Math

An open box with a square base is to bemade to organize items in the trunk of a car. It is planned to use an area of 16m square of flexible plastic forthis box. What are the dimensions of the box for max volume?

240. ## physics

A spring with spring constant 21 N/m is stretched 0.35 m in the positive x direction, referring to the figure. What is the spring’s restoring force (with its sign)?

241. ## Physics

A grasshopper jumps 1.0 m from rest, with an initial velocity at a 47 angle with respect to the horizontal. Find the speed of the grasshopper? Find the maximum height reached?

242. ## Physics

A projectile is launched with an initial speed of 40m/s at an angle of 25 degrees above the horizontal. The projectile lands 3 sec. later. Neglect air friction. What is the projectile's velocity at the highest point of it's trajectory? What is the straight

243. ## Math

we need to fence off a rectangular section of land in order to make some huge play pens. All four sides will be fenced and there will also be 2 parallel fence lines inside the perimeter in order to make 3 identical fields. If we have 2600 meters of

5 devices of energy in your home. please tell me. whats the largest source of power in the whole toronto. please help me i`m confused. i cant find good websites.

245. ## math 4th grade

each student brought in 9 cans to recycle. write an equation to represent the total number of cans (c)for any number of students(s)

246. ## physics

Uniform rod of weight 10N and length 5m is supported by ropes from points P and Q. The rope at P is attached 1.0m from end M and the rope at Q is attached 0.25m from end O. find the tensions Tp and Tq

247. ## FRENCH-Sra and Frenchy

Could you please give me some notes on the Prepositions. De + A.

248. ## History

A policy on how to handle things within a state or country What is it?

what is the value of the expression (4.32 x 10^-3) + (6.025 x 10^-3) ? i came up with either 0.010345*10^-3 or 10.345*10^-3 and when i check them they're both wrong.

250. ## french

please unscramble this word.. the word is eeienhtocasr

251. ## math

is 10^2 less thans or greater than -200?

252. ## physics collision

A 0.060 kg tennis ball, moving with a speed of 7.00 m/s has a head-on collision with a 0.086 kg ball initially moving in the same direction at a speed of 3.10 m/s. Assume a perfectly elastic collision and take the initial direction of the balls as

253. ## math

is -3+(-3) less than or greater than -6

254. ## Chinese

what does washa washa mean

255. ## scientist

Scientists performed an experiment to determine whether there is a connection between learning ability and food. They took two groups of 20 mice each, all from the same purebred strain. The mice were deprived of food for 3 days and then given a standard

256. ## math

-3/8 less or gereater than -1

257. ## math

is 7 less or greater then -1-(-10)? PLZZZ HELP IM HAVING A TEST ON THIS

258. ## maths

In Newtopia, inflation runs at 15%. A home entertainment unit currently sells for \$2000. A)How much would you expect it to cost in a year`s time? B)How much would you expect it to cost in two year`s time?

259. ## S.P

Tamara invests \$30,000 in an account earning 7% interest per year over the next 4 years. How much (simple) interest will her investment earn in total? Please help!!! :)

260. ## math

Radioactive radium has a half-life of approximately 1599 years. What percent of a given amount remains after 100 years?

261. ## maths

Chris wants to put a concrete path and a fence around his rectangular garden. The concrete path will be 1 meter wide and the fence will go around the edge of the path.The garden itself measures 5 meters by 8 meters. A)calculate the perimeter of the fence

262. ## math

Radioactive radium has a half-life of approximately 1599 years. What percent of a given amount remains after 100 years?

263. ## Calculus(derivatives)

f(x)=7cosx+6tanx, find f'(x)and f'(5pie/4)

264. ## Maths

A farmer needs to spread fertiliser over a paddock measuring 40m by 8m. the instructions on the fertiliser bag say to use 80grams per square meter. How many kilograms of fertiliser will be needed? HELP!

265. ## math

jada baked 4 trays of cookies with a dozen on each tray. she and her brother ate 6 of the cookies while they were still warm. otis baked 4 trays of cookies . he started with one dozen on each tray then his mom removed 6 cookies from each tray to send to

266. ## college algebra (maths 112)

To conduct a new experiment, a scientist needs a 23% salt water solution. How much of a 13% solution must be mixed with 45 quarts of a 32% solution to get the proper solution?

267. ## Maths

A coffee urn holds 12 litres when full. Harry fills coffee cups from the urn until the coffee runs out. A)How many 140mls cups of coffee can be filled from the urn? B)At the end there is not enough coffee left to fill a cup, Harry decides to drink it

268. ## physics

A mass of 0.52 kg attached to a vertical spring stretches the spring 39 cm from its original equilibrium position. The acceleration of gravity is 9.81 m/s2 . What is the spring constant?

269. ## Physics

Suppose the Earth was only half the size it is now (half the mass and half the radius), what would "g" be?

270. ## physics

A load of 46 N attached to a spring that is hanging vertically stretches the spring 0.23 m. What is the spring constant? Answer in units of N/m.

271. ## physics

A load of 46 N attached to a spring that is hanging vertically stretches the spring 0.23 m. What is the spring constant? Answer in units of N/m.

272. ## maths

A circular pool has a diameter of 3m and is filled to a depth of 70cm. Mr Thorne climbs into the pool and submerges for ten seconds while his son measures the new depth of 72cm. calculate Mr Thorpes volume.

273. ## physics

A slingshot consists of a light leather cup attached between two rubber bands. It takes a force of 32 N to stretch the bands 1.1 cm. a) What is the equivalent spring constant of the rubber bands? Answer in units of N/m.

274. ## math

can someone plzz tell me whichone is true. just but down the number when u answer back plzz & thank you 1. 14+(-25)> -50= 2. 20*10^3 3. 3/4 + 3/4> 1 4. 6^2=2^6 5. -21-(-39)=60 6. 19 7. 11*11*11 = 33^3 8. 38

275. ## Maths

A)Sam jogs 6 laps around a circular running track which has a radius of 30 meters. How far does she jog in total? B)Tom and Jerry decide to find the perimeter of their garden. Tom measures the length as 5.2meters while Jerry measures the width as 37cm.

276. ## writing

which is the adjective in the sentence. Our house is built from wood. can any help, by the way if theres no adjective its fine but i want ot make sure if there is or not

277. ## English

What actions could the friar and nurse (from Romeo and Juliet) have taken in act 4 that would have changed the outcome?

278. ## English plural form

Is plural for Kelly....Kellys or Kelly's?

279. ## physics

Consider a 1kg mass at rest at the equator.Because of the earths rotation , the mass experiences a centripetal acceleration. a)Draw free body diagram of mass b)Find centripetal force acting in the mass c)Compare apparent weight and true weight d)what

280. ## English

What actions could the friar and nurse (from Romeo and Juliet) have taken in act 4 that would have changed the outcome?

281. ## vareiables

can you help me because i need a good science fair project

282. ## math

I have \$6400 to invest at 8% and 6%. What amount is to be invested at 8% in order to earn double the interest of 6%

283. ## calculus

f(x)=12x/sinx+cosx find f(-pie)

284. ## Physics

A block is released from rest at the top of an incline which makes a 30 degree angle with the horizontal. The incline is 12 m long and it takes the block 25 seconds to reach the bottom. What is the coefficient of kinetic friction, between the block and the

285. ## Economics

An article in BusinessWeek warned of the dangers of deflation as the collapse of numerous Asian economies was creating worries that Asia might try to "export its way out of trouble" by oversupplying everything from automobiles to semiconductors. Evidence

286. ## economics

An airline transportation consultant offers the CEO of BlueStar, a struggling new commercial airline company, the following advice concerning the airline's high operating costs in the current quarter: "You don't have enough aircraft to operate efficiently.

287. ## managerial economics

draw me an indifference curve where someone does not value integrity very much compared to income

288. ## pre-algebra

Graph the equation. Tell whether the equation is a function. y = -x

289. ## 3rd grade math hw help!

Hell All, Please help my son with his Math fraction. He needs to put the below fractions in ordedr from least to greatest. 1) 2/4, 2/3, 2/7, 2/5 2) 1/2, 6/7, 5/7, 1/10 3) 1/2, 6/7, 1/12, 2/3, 11/12, 1/6, 1/3, 1/4, 4/5 Please help!!! Thanks.

290. ## Physics

A moving object has a kinetic energy of 138 J and a momentum of 23.9 kg·m/s. a) Find the speed of the object. Answer in units of m/s.

291. ## math

corinne rolls two six sided number cubes with sides labeled 1-6. what is the probability that she rolls a 6 on both side

292. ## physics

A 25.1 g marble moving to the right at 22.9 cm/s overtakes and collides elastically with a 12.1 g marble moving in the same direction at 11.3 cm/s. After the collision, the 12.1 g marble moves to the right at 25.1 cm/s. Find the velocity of the 25.1 g

293. ## Math

A farmer buys two varieties of animal feed. Type A contains ounces of oats and ounces of corn per pound. Type B contains ounces of oats and ounces of corn per pound. The farmer wants to combine the two feeds so that the resulting mixture has at least

294. ## world history

whan part of a country leaves or breaks off from the rest it is called?

295. ## Math

i have a piece of paper 22 in. long and 16 in. wide. i cut a 2 in. x 2 in. square from each corner. i then folds up the sides and forms a box with an open top. what is the volume of this box?

296. ## geometry

find the equation to the plane through the point (-1,3,2) and perpendicular to the plane (x+2y+2z=5) and (3x+3y+2z=8)

297. ## social studies

why did the south see president lincoln as anenemy?

298. ## Chemistry

A piece of dry ice (solid carbon dioxide) with a mass of 25.5 g is allowed to sublime (convert from solid to gas) into a large balloon. Assuming that all of the carbon dioxide ends up in the balloon, what will be the volume of the balloon at a temperature

299. ## Algebra

Complete the rectangle to illustrate the product. (x+8)(x+7)

300. ## geometry

Find the area of triangle ABC with A = ((-5), 1), B = ((-8), 1), and C = (9, (-8)). Graph the triangle on your own graph paper. Do not include units.

301. ## Algebra:Properties

3(f+4)+2f Rewrite this expression without parentheses

What angle would a projectile have to be shot at so that it will go twice as high as it will far

303. ## com 155

Last night I watched a movied called I Spit on your grave. The movie is about a young woman from the city who rents out a cabin in the country to write a book. While traveling up to the cabin she meets a group of gas station attendees who give her

304. ## chemistry

If 40.0 grams of water are produced when 30.0 grams of ethane is burned, what is the % yield

305. ## Chemistry

A piece of dry ice (solid carbon dioxide) with a mass of 25.5 g is allowed to sublime (convert from solid to gas) into a large balloon. Assuming that all of the carbon dioxide ends up in the balloon, what will be the volume of the balloon at a temperature

306. ## math

randy pedals his bicycle at a constant rate of 15 feet per second. which linear equation represent his total distance traveled y after x seconds?

307. ## Art Appreciation (college level)

Art 101 (Art Appreciation) textbook (Gardener's art through the ages) by Kleiner, F.S. 2010 The Western Perspective vol 11 (13th edition) Question: Discuss how the late Gothic sense can be seen as an evident in Berlinghieri's St. Francis Altarpiece.

308. ## chemistry

a catalytic converter combines 2.25 g CO with excess O2 What mass of Co2 is formed

309. ## Math

A room is 18 feet long, 14 feet wide , 8 feet high. find the cost of painting the four walls with two coats of paint costing \$9.50 per gallon. each gallon covers 256 ft squared want with 1 coat .

310. ## the world history

Does any one have the question to exams007681-007682

311. ## physics

A 748 N student stands in the middle of a frozen pond having a radius of 5.3 m. He is unable to get to the other side because of a lack of friction between his shoes and the ice. To overcome this difficulty, he throws his 2.1 kg physics textbook

312. ## math

A standard deck of cards has had all the face cards (Jacks, queens, and kings) removed so that only the ace through ten of each suit remains. A game is played in which two cards are drawn (without replacement) from this deck and a six-sided die is rolled.

What angle would a projectile have to be shot at so that it will go twice as high as it will far

314. ## Physics

The mass of a sports car is 1200 kg. The shape of the car is such that the aerodynamic drag coefficient is 0.250 and the frontal area is 2.30 m2. Neglecting all other sources of friction, calculate the initial acceleration of the car ,if it has been

315. ## Algebra

Where is the axis of symmetry of a parabola located?

316. ## chemistry

What is the chemical equation for the reaction of manganese metal with sulfuric acid to produce aqueous manganese (II) sulfate and hydrogen gas

317. ## Physics(I Have No Idea!!) :)

A ball is thrown at 30 m/s horizontally off a building. it lands 100 meters from the base of the building. How high is the building?

318. ## Chemistry

What is the balance equation for: (NH4)3 + MgCl2

319. ## Math 30

How do you sketch an equation like x+4=-2(y-3)^2

320. ## Physics 2(Plz Help! :) :) ;))

A bullet leaving a rifle at an angle of 45 degrees travels a distance of 10 Km determine: A). The muzzle velocity B). What angle would you have to shoot the same bullet to go HALF the distance? Lower angle

321. ## calculus

-find the equation of the tangent line to the curve y=5xcosx at the point (pi,-5pi) -the equation of this tangent line can be written in the form y=mx+b where m= and b= -what is the answer to m and b?

322. ## Chemistry

Knowing that 2 aluminum atoms and 3 chlorine molecules react to produce 2 units of aluminum chloride, how many moles of aluminum chloride can be produced by reacting 7.8 moles of chlorine with excess aluminum?

asked by Joe Schmo
323. ## SCI/230

please help CheckPoint: Basic Processes Due Day-4 (Assignment Tab) • Select one basic physiological process from the following list: o Acquire and process nutrients o Get rid of waste o Reproduction o Obtain information about and respond to external

324. ## Science

For million of years, wind and rain have worn down the earth. The land is not totally level now because ____. a. other forces keep building up the land b. wind and rain cannot erode solid rock c. for most of those years, wind and rain were scarce d. wind

325. ## Chemistry

. What is the percent by mass of nitrogen in (NH4)2CO3? dont know how to do, please help.

326. ## Chemistry

Is there a reason for why you're allowed only three significant figures for molar masses?

327. ## Math (Help This Will Be on My Test Tomorrow!)

y= ax^2+bx-4. How would i find the equation of this parabola with the points (0,-4) (1,0) (2,2) (4,0) and 6,-10)?

328. ## chemistry

What is the molarity of the following solutions? (a) 2.1 mol KCl in 1.7 L of solution 1 M (b) 1.04 mol H2SO4 in 335 mL of solution 2 M (c) 0.944 mol of ammonia in 215 mL of solution 3 M

329. ## math

The jelly junior high school color is made by mixing red paint to yellow is 3 to 5, How much red paint should be mixed with 20 oz of yellow?

330. ## CRIMINOLOGY

what are some social conflicts with the death penalty?

331. ## third grade hw help

Hello All, Please help my son with his Math fraction. He needs to put the below fractions in ordedr from least to greatest. 1) 2/4, 2/3, 2/7, 2/5 2) 1/2, 6/7, 5/7, 1/10 3) 1/2, 6/7, 1/12, 2/3, 11/12, 1/6, 1/3, 1/4, 4/5 Please help!!! Thanks.

332. ## English

If I wanted to say--This is Jos's backpack. Would the comma go between the s's as I have included, or would there just be a comma after the s?

333. ## math

find how much interest \$15,000 earns in two years in a certificate paying 4.5% interest compounded quarterly?

334. ## Math

A bag contains 3 red marbles, 5 yellow marbles and 6 orange marbles. Three marbles are drawn and NOT replaced each time. Determine the probability of drawing three yellow marbles in a row.

335. ## 6th earth science

Can anyone help with this question If Earth's land features made by process of moving water are likely to be found on other celestial objects? I am trying to help my son but not sure I am understanding the question right myself.

336. ## Physics

In the latest Indian Jones film, Indy is supposed to throw a grenade from his car, which is going 93.0 km/h, to his enemy's car, which is going 130km/h. The enemy's car is 17.0m in front of the Indy's when he lets go of the grenade. 1)If Indy throws the

337. ## physics

A 2940 kg demolition ball swings at the end of a 16.9 m cable on the arc of a vertical circle. At the lowest point of the swing, the ball is moving at a speed of 8.28 m/s. Determine the tension in the cable.

338. ## physics

A jet flying at 132 m/s banks to make a horizontal circular turn. The radius of the turn is 3810 m, and the mass of the jet is 1.68 × 105 kg. Calculate the magnitude of the necessary lifting force.

339. ## physcis

On a banked race track, the smallest circular path on which cars can move has a radius of 113 m, while the largest has a radius of 160 m, as the drawing illustrates. The height of the outer wall is 14.4 m. Find (a) the smallest and (b) the largest speed at

340. ## Algebra

In the graphing problem 3y=2x-9 m=? b=? What do m and b stand for? How do I solve?

341. ## Algebra 2

1/16x^4 +3/8x^3 +1/8x^2+1)+ (-9/16x^4 +7/8x^2 -1) I had previously made a mistake in the first set of problems in the last numbers. instead of +1, I had -1. I apologize for the confusion. Thank you.

342. ## Chemistry

Balance this equation. NaHCO3(s) + heat ----> Na2CO3(s) + H2O(l) + CO2(g). i balanced it & got: 2NaHCO3(s)+ heat -->Na2CO3(s)+ H2O(g)+CO2(g) is this right ? Determine how many moles of CO2(g) is produced when 7mols of NaHCO3 are consumed. how do i do this

What angle would a projectile have to be shot at so that it will go twice as high as it will far

344. ## Statistics

Assume the heights of women are normally distributed with a mean given by 63.6 inches and a standard deviation given by 2.5 inches, the US Army requires women's height to be between 58 and 80 inches. Find the percentage of women meeting that height

345. ## physics

A 15 kg crate is held with a rope at the top of a metal ramp that has an incline of 25(degrees) with the horizontal. The rope breaks and slides down the ramp a distance of 5.50 meters before it hits the floor. If the coefficient of friction between the

346. ## Physics (simple electronics)

The electronic flash attachment for a camera contains a capacitor for storing the energy used to produce the flash. In one such unit, the potential difference between the plates of a 775 µF capacitor is 330 V. (a) Determine the energy that is used to

347. ## math

using common denominators find the sum or difference.write it in simplest form 1/2 +1/10=

348. ## Compliments

Hey, Im trying to find lots of compliments. For example, if someone makes a really nice drawing or whatever, and enhances it with their own techniques and stuff, what comments could I give to them? Here is my list: *Very creative work *Like the blend and

349. ## Finance

Nine rights are necessary to purchase one share of Fogel stock at \$50. A right sells for a \$4. The ex-rights value of Fogel stock is

350. ## Physics

In the latest Indian Jones film, Indy is supposed to throw a grenade from his car, which is going 93.0 km/h, to his enemy's car, which is going 130km/h. The enemy's car is 17.0m in front of the Indy's when he lets go of the grenade. 1)If Indy throws the

351. ## College Physics

In the latest Indian Jones film, Indy is supposed to throw a grenade from his car, which is going 93.0 km/h, to his enemy's car, which is going 130km/h. The enemy's car is 17.0m in front of the Indy's when he lets go of the grenade. 1)If Indy throws the

352. ## Science

What Element am I? My properties are very similiar to sodium. I am lighter than the element that has an atomic number one less than mine.

asked by mary k.
353. ## Physics

The rain-soaked shoes of a person may explode if ground current from nearby lightning vaporizes the water. The sudden converse of water to water vapor causes a dramatic expansion that can rip apart shoes. Water has density 1000 kg/m^3 and requires 2256

354. ## Science

I combine with two oxygen atoms to make sand. I have four valence electrons, Whar element am I?

asked by mary k.
355. ## algebra

translate into an inequality. use the variable X My salary next year will be at least \$45000.

356. ## Algebra 2

A company charges 16\$ for a subscription. It has 30,000 subscribers. It looses 1,000 subscribers for every 1\$ they raise the price. 1.Find the quadratic quation. (Can you tell me how to pull the numbers out of the question and put it into the equation?)

357. ## math

how can you use 2x8 to find 4x8?

358. ## Math

do adult men go out to dinner alone more than adult women and what is the percentage of men versus women women dine alone?

359. ## Chemistry

2NaHCO3(s)+ heat -->Na2CO3(s)+ H2O(g)+CO2(g) is this right ? Determine how many moles of CO2(g) is produced when 7mols of NaHCO3 are consumed. question i asked earlier, i got 3.5 moles am i right ?

360. ## english

Please Correct punctuation errors, only. Thank you! Subject: Policy 27380 Your insurance program, Policy 27380 is enclosed. We advise you to add this valuable document to your other important papers. Please review your certificate carefully. If you have

361. ## Physics!

One of the new events in the 2002 Winter Olympics was the sport of skeleton (see the photo). Starting at the top of a steep, icy track, a rider jumps onto a sled (known as a skeleton) and proceeds - belly down and head first - to slide down the track. The

362. ## Calculus

I'm supposed to find the volume of this, I've tried it multiple times. I can't seem to get one of the possible answers. y=x+2, y=16-x^2, x=-2, x=2 A. 50.67 B. 51.67 C. 8.44 D. 16.89 E. 101.33 F. 152 Thanks for any input!

363. ## Math

The bases of a rectangular prism are squares whose perimeters are 36 inches. If the height of the prism is 8 inches, what is the surface are of the prism?

364. ## PHYSICS

Bicyclists in the Tour de France do enormous amounts of work during a race. For example, the average power per kilogram generated by Lance Armstrong (m = 75.0 kg) is 6.50 W per kilogram of his body mass. (a) How much work does he do during a 117-km race in

365. ## Physics 2

A 0.564-kg basketball is dropped out of a window that is 5.85 m above the ground. The ball is caught by a person whose hands are 1.89 m above the ground. (a) How much work is done on the ball by its weight? What is the gravitational potential energy of the

366. ## Physics help!

An extreme skier, starting from rest, coasts down a mountain that makes an angle of 26.7 ° with the horizontal. The coefficient of kinetic friction between her skis and the snow is 0.248. She coasts for a distance of 10.5 m before coming to the edge of a

367. ## Engineering Physics

A 1.0-kg block is released from rest at the top of a frictionless incline that makes and angle of 37 degrees with the horizontal. An unknown distance down the incline from the point of release, there is a spring with k=200 N/m. It is observed that the mass

368. ## Math

Find the surface area A hemisphere with diameter 70 cm

asked by plz help!
369. ## Chemstry

Lovastatin (C24H36O5) has a molar mass of 404.53 g/m. The normal dose of the drug lovastain is 20mg. How many molecules of lovastatin (C24H36O5) are in a normal dose?

370. ## algebra

is -4 a solution of the inequality? x≥ 4

371. ## Chemistry

the vapor pressure of ethanol at its normal boiling point would be 1)80 kPa 2)101.2 kPa 3)273 kPa 4)373 kPa would it be 1 ?

372. ## need some help!!!

f(x)=12x/sinx+cosx find f'(-pie) anybody know the answer!!!

373. ## math 5th grade

need to understand how to find the sum in simplest form of these common denominators 1/2 +1/10= ,5/12+1/4=,the difference in 2/3-1/6 =, 5/6-7/12=

374. ## Chemistry

which substance has the greatest intermolecular forces of attraction between molecules ? 1)propanone 2)ethanol 3)water 4)ethanoic acid dont really understand, please help

375. ## math

f(x)=12x/sinx+cosx find f'(-pie) need help!! anyone know the answer!!

376. ## algebra

from a base elevation of 9600 ft, a mountain peak in colorado rises to a summit elevation of 14,307 ft over the horizontal distance of 15,850 ft, what is the grade of the peak?

377. ## english

PLEASE CORRECT PUNCTUATION ERRORS ONLY. THANK YOU! Re: Johnson vs. Ralston We have received medical information from Midvale Clinic, and copies of all the documents we received are enclosed. We received nothing from Dr. Best, and the only items we received

378. ## chemistry

A HOT CUP OF COFFEE HAS SOME SUGAR COMLETELY DISSOLVED IN IT. AFTER THE COFFEE HAS COOLED, SOME SUGAR APPEARS AT THE BOTTOM OF THE CUP. EXPLSIN WHAT HAS HAPPENED IN TERMS OF SATURATION.

379. ## algebra

translate into an inequality. use the variable X My salary next year will be at least \$45000.

380. ## english

PLEASE CORRECT PUNCTUATION ONLY. THANK YOU! Re: Evans vs. Brown I tried to call you about the above case but learned that you were out of town, and will not return until Wednesday. You wrote to me on June 1 to ask what authority I had or could get to

381. ## calculus

f(x)=12x/sinx+cosx find f'(-pie) anyone know the answer!!! need help!

382. ## chemistry

A HOT CUP OF COFFEE HAS SOME SUGAR COMLETELY DISSOLVED IN IT. AFTER THE COFFEE HAS COOLED, SOME SUGAR APPEARS AT THE BOTTOM OF THE CUP. EXPLSIN WHAT HAS HAPPENED IN TERMS OF SATURATION.

383. ## health

i need a critical thinking question about bulimia for my psych class.

384. ## Math

The volume of the box is the number of cubes it would take to fill it up. If each is a centimeter on the edges, the volume would be given in cubic centimeters. what is the volume of the 4 cm x 4 cm x6 cm box?

385. ## Accounting

Capital budgeting emphasizes the key role management has in value creation by taking projects and expanding the size of the firm if profitable. Do you agree or disagree with this statement? Why or why not?

386. ## Math

A cone and a square based pyramid have slant heights of 6 inches . The diameter for the cone and the base edge of the pyramid are both 8 inches. How would I find which space figure has the greater surface area

387. ## English

Which word choices for each sentences should I use in parenthesis? The state legislature meets in the (Capital or Capitol). They are planning to (precede or proceed) with the construction. The professor will (precede or proceed) me on the program.

388. ## SPANISH 10 B

I Don't Understand The Instructions Please Help>> INSTRUCTIONS: In this writing assessment, you are going to use vocabulary from this section to talk about your house. Answer the questions you see based on what you do with this item or where this item

389. ## math

how to write an addition sentence to get the answer as 25

390. ## math

how to write an addition sentence to get the answer as 25

391. ## math

Which shows the proper coordinate notation for a rotation that is 180 degrees clockwise about the origin A. (3,6)->(6,3) B. (3,6)->(-3,6) c. (3,6)->(6,-3) D. (3,6)->(-3,-6) HELP please? Thanks

392. ## chemistry

If 80g of NaOH is added to 100mL water, what is the pH of the resulting solution?

393. ## last question!!need help!!

f(x)=12x/sinx+cosx find f'(-pie)

394. ## 5th grade math

can you please explain &show me how to get these answers to common denominators,find the sum & difference,write in simplest form,7/10-3/5 =,2/3-1/6 =,5/6-7/12 =,5/12+1/4=,1/6+2/9=,5/8+1/2=,3/8+1/4= i'm really having a huge problem understanding this,it's

395. ## MATH Grade 12

How do you sketch an equation like x+4=-2(y-3)^2 ???

396. ## Accounting

Give an example of an existing cost center. Why is it a cost center? Explain.