# Questions Asked onApril 15, 2009

1. ## Math

why didn't klutz do any home work on saturday also what did the girl melon say when the boy melon proposed marriage

how do you know when something has energy?

3. ## Calculus

A ball is dropped from a height of 10 feet and bounces. Each bounce is ¨ú of the height of the bounce before. Thus, after the ball hits the floor for the first time, the ball rises to a height of 10(¨ú ) = 7.5 feet, and after it hits the second floor

4. ## Physics

Three spheres, each with a negative chrge of 4.0x10^6C, are fixed at the vertices of an equilateral triangle whose sides are 0.20 m long. Calculate the magnitude and direction of the net electric force on each spehere.

5. ## IPC

Explain whether the photons emitted by a bright light bulb are more energetic than those emitted by a dim light bulb of the same color. how does the color of the light bulb determine the amount of energy of the electromagnetic waves?

6. ## physics

An electron is accelerated by a 4.7 kV potential difference. How strong a magnetic field must be experienced by the electron if its path is a circle of radius 8.0 cm?

7. ## Physics

A thin brass ring of inner diameter 10cm at 20degrees C is warmed and slipped over an aluminum rod of diameter 10.01cm at 20degrees C. Assuming the average coefficient of linear expansions are constant, to what temperature must this combination be cooled

8. ## chemistry

Calculate [H3O] in the following solutions. a)4.0×10−2M HCl and 8.0×10−2M HOCl b)0.105M NaNO2 and 5.00×10−2M HNO2 c)5.15x10-2M HCl and 7.62x10-2M NaC2H3O2

9. ## Chemistry

Question: A 0.400 g sample of propionic acid was dissolved in water to give 50.00 mL of solution. This solution was titrated with 0.150 M NaOH. what was the pH of the solution when the equivalence point was reached? I'm not really sure how i would go about

10. ## Trigonometry

How would you find the solutions to this problem? (cosx)(cscx)=2cosx

11. ## Latin

What does the sentence victoria numerum servorum non augebit translate to? I got-the victory did not add to the many servant. This makes no sense, since many and servant do not agree. What is the correct translation? And thank you

12. ## english

Ship is to trip as shout is to _________

13. ## physics

When an electron moves from A to B along an electric field line in Fig. 24-29, the electric field does 3.66 x 10-19 J of work on it. What are the electric potential differences (a)VB - VA, (b)VC - VA, and (c)VC - VB? in the picture there r four field lines

14. ## Chemistry

The crystal structure of lithium sulfide (Li2S) is pictured here. The length of the unit cell is 5.88 x 10^2. For this structure, determine: a)the coordination number of Li and S b) the number of formula nunits in the unit cell c) the density of Li2S

15. ## Chemistry

if NaCl is added to this equation: [Co(OH2)6]2+ + 4 Cl- + heat ->(supposed to be double arrow) [CoCl4]2- + 6 H2O would the equilibrium shift right or left? also same question for the addition of AgNO3.

16. ## Chemistry

What is the total number of orbitals associated with the principal quantum number n = 5?

17. ## College Chem

Calculate the total number of electrons that can be present in the principal level for which n = 4.

18. ## Calculus

The supply and demand functions for a certain commodity are given by: supply: p=20+1.5x, and demand: p=40-x. Then producers' surplus and consumers' surplus is?

19. ## Math

You deposit \$200 into an account earning 5%, compounded monthly. How much will be in the account after 2 years?

20. ## geography

Latitude lines measure distance in degrees north and south of this? is it equator?

21. ## math

Debbie goes to a diner famous for its express lunch menu. The menu has five appetizers, three soups, seven entrees, six vegetables and four desserts. How many different meals consisting of either an appetizer or a soup,one entree, one vegetable, and one

22. ## statistics

Flaws in a carpet tend to occur with a Poisson distribution at a rate of one flaw every 300 square feet. What is the probability that a carpet that is 9 feet by 14 feet contains no flaws? Probability = how would you set it up in excel?

23. ## Language

Ship is to trip as shout is to ____

24. ## Chemistry

queston: the pH of a white vinegar solution is 2.45. this vinager is an aquous solution of acetic acid with a density of 1.09g/mL. What is the mass percentage of acetic acid in the soulution. What exactly do i have to do? do i set up an Ice table. What do

25. ## poetry

Can you tell me where does suspense occur and why ? In The "cremation of sam McGee", and "the highwayman" please help

26. ## chem

The bond enthalpy of N2(g) is 418.0 kJ/mol. Calculate ÄH°f for N(g). I figured that if it gave the enthalpy for N2, then the enthalpy for N would be half of the given amount. But that wouldn't be bonded to anything?? Is there a standard calculation?

27. ## English

Indirectly affected person 1 or group 1 when mountain climbing unprepared please help and thank you person 1 or group 1 means first person or group to be indirectly affected Indirectly affected person 2 or group 2 when mountain climbing unprepare please

Solve the equation of the interval (0, 2pi) cosx=sinx I squared both sides to get :cos²x=sin²x Then using tri indentites I came up with cos²x=1-cos²x Ended up with 2cos²x=1 Would the answer be cos²x=1/2???

29. ## Math

Suppose your parents deposited \$1500 in an account paying 3.5% interest compunded annually(once a year) when you ere born. Find the account balance after 18 years. So how do you plug all this information into this formula: B=p(1+r)^x?

30. ## Chemistry

A 0.108 M sample of a weak acid is 4.16% ionized in solution. what is the hydroxide concentration of this solution? I know that i set up an ice table. The equation would be weak acid + H20 goes to OH + the acid. What do i do with the 4.16 %? How does that

31. ## music

Another question on music. I am unable to find where and why music music started.

32. ## Physics

Answer in m/s. The speed of a moving bullet can be determined by allowing the bullet to pass through two rotating paper disks mounted a distance 88 cm apart on the same axle. From the angular displacement 18.4 degrees of the two bullet holes in the disks

33. ## Math

Suppose your parents deposited \$1500 in an account paying 3.5% interest compunded annually(once a year) when you ere born. Find the account balance after 18 years. So how do you plug all this information into this formula: B=p(1+r)^x?

34. ## Chemistry

Why is the reaction rate of a given metal with a stronger acid is faster than with weaker acid? Which one required more volume to produce neutral solution, a strong acid or strong base,or are they just the same? Can you explain it to me please coz I can't

35. ## music

I'm doing an informative paper on music. I need to figure out when music started(year/century) and i need to know what type of music and what instruments were used durring that time. I'm look on the internet but i keep getting mutiple answers and i'm so

36. ## Physical Science

If the density of ice is 0.92 g/cm^3, what percent of an ice cube’s (or iceberg’s) mass is above water.

38. ## Physics

Answer in m/s. The speed of a moving bullet can be determined by allowing the bullet to pass through two rotating paper disks mounted a distance 88 cm apart on the same axle. From the angular displacement 18.4 degrees of the two bullet holes in the disks

39. ## English

Does this sound argumentative enough and is worded correctly. ( I know that this isn't true but in my case for this paper this is what we have to do) Fighting war for freedom is more efficient than having global peace and freedom. OR fighting war for

40. ## physical science

An object in the shape of a cube has a mass of 375 grams and a side that measure 5.0 cm. Will this object float in water? Prove your answer by comparing the density of the cube to that of water.

41. ## Physical Science

plz i need help If the density of ice is 0.92 g/cm^3, what percent of an ice cube’s (or iceberg’s) mass is above water.

42. ## Science

If the density of ice is 0.92 g/cm^3, what percent of an ice cube’s (or iceberg’s) mass is above water.

43. ## geology

what is the oldest to the youngest of these 4 rocks? granite, limestone, mudstone and conglomerate.

44. ## Math

Brenda wants to attatch a string of beads along the circular bottom edge of a lamp shade shown below. The diameter of the bottomof the lamp shade is 18 centimeters. About how many centimeters long should Brenda make the string of beads? a.25 cm b.79 cm

45. ## Maths

The question says: Two pairs of touching sides are the same length. The diagonals meet at right angles. Opposite sides are not parallel. The diagonals bisect each other, but are different lengths. The diagonals do not meet at right angles. Angles are not

46. ## Physics

Two pieces of paper are on a DVD movie disk. Paper A is farther from the center of the disk than Paper "B". The DVD disk starts to play and then starts to spin. Which statement is true? a. Paper "A" experiences a greater tangential acceleration than Paper

47. ## Calculus

Use the dot product to show that the line c = by + ax is perpendicular to vector v = They seem like they would be parallel. doesn't c also = ?

48. ## English

1. Do you have a scissors? 2. Do you have a pair of scissors? 3. Do you have scissors? (Which ones are correct? Is #1 correct?)

49. ## Chemistry/math

Cesium-137 has a half-life of 30 years. Suppose a lab stored a 30-mCi sample n 1973. How much will be left in 2063?

50. ## English

What is an introductary word? thank you

51. ## Physics

Two pieces of paper are on a DVD movie disk. Paper A is farther from the center of the disk than Paper "B". The DVD disk starts to play and then starts to spin. Which statement is true? a. Paper "A" experiences a greater tangential acceleration than Paper

What is the least common multiple of 32 and 75?

53. ## his

how Reagan’s policies reflected conservative politics and contributed to stimulation of the economy.

54. ## math

MaineCellular offers a phone plan that costs \$12 per month plus 10 cents per minute. Portland Wireless offers a plan that costs \$20 per month plus 5 cents per minute. How many minutes could you use in a month so that it would cost less to use the

55. ## Quick Spanish

1. ¿_______vas? Voy a la oficina del director. a.)Dónde b.)Qué c.)Cómo d.)Adónde I don't know..(couldn't it be both "a" and "d") 2. 2. La cafetería no vende más_______porque son las once de la mañana. a.)almuerzo b.)rico c.)desayuno d.)hambre I

56. ## Healthcare

I need some help with answering these questions: What are some types of agency problems do health care organizations in particular have to face? How are agency relationships (such as that between patient and physician) related to cost? What are some

57. ## artist

I am suposed to incorporate the answer to this question into a short repot on raphael. What makes a Raphael a Raphael? I can't find the answer anywhere on the interent. It is a title of a book so all I get is places to get the book not the answer to the

58. ## Physics

Three spheres, each with a negative chrge of 4.0x10^6C, are fixed at the vertices of an equilateral triangle whose sides are 0.20 m long. Calculate the magnitude and direction of the net electric force on each spehere. I already posted this question and

59. ## math

Can someone explain the Triangle Similarity, Or the AA Similarity, Theorem? We're doing proofs, and I don't think I understood the wording.

60. ## Math

Whats 9% of 45?

61. ## Physics

Two pieces of string are identical except one piece is twice the length of the other. Each is tied to a rigid support at one end, stretched taut, and subjected to the same sudden jerk at the unattached end. What do you predict will happen? Justify answer.

I don't really understand the rules for adding and subtracting integers. Can someone explain them to me?

63. ## math

Runnign at a consant speed, Andrea covers 15 miles in 2 and half hours. At this speed, how many minutes will it take her to run 2 miles?

64. ## Physical Science

How does the apparent weight loss of the an object compare with the weight of the water displaced by the object?

I have homework and i don't understand what to do help please. Plan for a job search by considering how you would manage the resume,job-application letter, interview, and follow up letter. Now may job is to create a table that lays out a day-to-day plan to

66. ## English

After you solve the cross word puzzle, using the answer words, complete the dialogue between a teacher and a student. Look at the first row, Across one starts with 's.' Down four contains one r. What is the suitable word for Down 1? Across 6 ends with l.

67. ## biology

why are the processes of transcription necessary for life?

68. ## genotypes

in african-violet plants,purple flowers are dominate to white flowers. You purchase an African- violet plant with white flowers. It's genotype could be represented as:

69. ## accounting

I need help to understand what is being needed.Determine the ethical course of action for the following three scenarios from the perspective of each of the three philosophical approaches: consequentialism, deontology, and virtue ethics. Then, complete the

70. ## History of English Economics

I'm trying to figure out what Gregory King's "A Scheme of the Income and Expenses of the Several Families of England" (1688) tells us about the time period. I cannot make sense of the number and was wondering if someone could help me by explaining what

71. ## Multivariate Calculus

The marginal cost function is MC(q)=300-10q, where 'q' is the number of tons of coffee produced. Fixed costs are \$1000. The marginal revenue function is MR(q)=500-20q. The value of the profit function P(q) when q=25 is closest to? And the Average Cost when

Hello, my research paper is due Friday, and I am done with it. I need someone to proof read it and I was wondering anyone is willing to proof read 6-7 pages of text. I know that's alot to ask for, but I need a good grade on this. Is there anyone available

73. ## 5th grade social studies

Who were some of the famous explorers of 1450-1763???

74. ## chemistry

On a battery, is the positive end the anode?

76. ## Physics - please check over

Could I please get some further assistance on a question I posted earlier? I'm not getting the correct answer and I'm not sure what I'm doing wrong.

What's the difference between a landfill and a dump?

78. ## accounting

What information is found on a flexible budget report?

79. ## True/False science question

Is this question true? Autotrophs are photosynthetic organisms.

80. ## math

if you have the triangle ABC with the points A(47,100) B(-1273,203) and C(971,-732) how would you find the center point and the radius of the incircle of triangle ABC?

81. ## Philosophy

What is the Doctrine of the mean by Aristotle?

82. ## science

A beaker filled with 2182.5 g of water at a temp of 10.0 degrees Celsius is placed over a lamp burning ethanol. What mass of ethanol needs to be burned in order to bring the water to boiling?

83. ## History

Why do soldiers have to operate as a unit, not as individuals?

84. ## 5th grade social studies

What was the french and indian war about?

86. ## Chem

I have a question about maximum energy and maximum entropy. How would you know whether the tendency towards maximum energy favours to reactants or the products. Secondly, how would you know whether the tendency towards maximum entropy favours the reactants

87. ## math riddles

i am greater than 30 and less thean 40. the sum of my digits is less than 5. who am I?

88. ## Health

Indirectly affected person 1 or group 1 when mountain climbing unprepared please help and thank you person 1 or group 1 means first person or group to be indirectly affected

how can i improve my maths and english

90. ## Physics

A gun that is spring-loaded shoots an object horizontally. The initial height of the gun is h=5 cm and the object lands 20 cm away. What is the gun's muzzle velocity? Do i use something like v=sqr(k)/m*x. I am getting something like 3.2m/s, is this

91. ## biology

why are the processes of transcription necessary for life?

92. ## Pre-Cal

Find an equation of the tangent line to the parabola at the given point, and find the x-intercept of the line. 17) x^2=2y , (-3,9/2) 18) y=-2x^2 , (-1,-2)

93. ## History Ms. Sue

When soldiers are in battle they have to operate as a unit, not as individuals. How does that take away their freedom? I posted this question early but I still don't understand how this embarks on having no freedom. Thank You

94. ## Labor Econ

Can anyone get me started on this? A country has 2 regions, the North and South, which are identical in all respects except for the hourly wage and number of workers. The demand for labor in the region is Wn=\$20 - .5En and Ws=\$20 - .5Es where En and Es are

95. ## TO: SraJMcGin

I replied to the true/false question. I meant atp is the answer false.

96. ## Calculus

Let P(x,y)=5x^3y+8xy^3. Then Px(-1,1) is? And Pxy(-1,1) is?

97. ## English

What is an appositive? What is a direct address? Thank you so much.

98. ## accounting

Company sells 100,000 wrenches for \$12.00 a unit. Fixed cost are \$300,000.00 and net income is \$200,000. What should be reported as variable expenses on the income statement?

99. ## Argument Validity

Relax. The kid's been delivering the paper for, how long? Three, four years maybe? And not once has she missed us. The paper will be here, just wait and see. She's just been delayed for some reason

101. ## History

What is another negative reason for war being fought for freedom. So far I have War entraps people into the military. Meaning that it provides little freedom.( I expanded on that) And you don't bring freedom to people by engaging in war on their cities. (I

102. ## Health

Person 2 or Group 2 indirectly affected when mountain climbing unprepared please help and thank you last and final question

103. ## art

How do artists employ the various qualities of line in their works? Were I can find information on this

104. ## 10th grade Living Environment

Why would someone choose to propagate a particular plant for commercial purposes by using vegetative structures instead of seads?

105. ## language

i did a tercet poem. can you please tell me if its a good poem please or if there are any mistakes? thanks. The Funny Dog I saw a dog He was walking in the fog So he couldn’t see and got stuck in a log. He can jump up high So he likes to pretend he can

106. ## Physics

A serving of cereal has 800 cal (1 cal = .239 J). How far can you walk with this energy? Is the elapsed time important? Why is t his calculation irrelevant to physics?

107. ## Calculus

FInd the x-coordinates where horizontal tangents for F(x)=2x^2+4x-12 occur. The rightmost one occurs?

108. ## Geography

Regional Geography of North America 1. In the Appalachian Region, coal deposits are associated with rocks that are: a.)eroded b.)igneous c.)sedimentary d.)metamorphic I choose "c" 1. The ocean current that originates in the Caribbean is the: a.)El Nino

According to the New York Times/CBS poll of March, 2005, 87% agreed that it should be the government's responsibility to provide a decent standard of living for the elderly, and 54% agreed that it would be a good idea to invest part of their Social

110. ## True/False science question

Is this true? Atp does not play a role in energy transfer in living things.

111. ## world history

who is the Italian explorer that traveled to the Caribbean on three occasions but was never convinced that he had discovered a new world.

112. ## Science

A material has 32 atoms in all; 24 decayed and the rest undecayed. If the half-life of the radioactive material is 1000 years, what is the age of the material? a. 1000 years b. 2000 years c. 3000 years d. 4000 years

113. ## Science

You have been commissioned to design a stand]alone solar PV system (solar panels + battery array) for a 1000ft2 occupied between May through October, off]line cottage located near Corpus Cristi, Texas. The PV array should supply the daily average

Can you please proofread this for me for grammar mistakes thank you. British American novelist Amelia Barr once stated “old age is the verdict of life”. Aging is a natural process of life that effects all of us. Sociologists see aging as a process of

115. ## FRENCH to SraJMcGin

Bonjour, Mme! Pourriez-vous me dire comment on dit "cookies" en français, s'il vous plaît? J'ai essayé un "translator site" en quelque langues differentes; une fois il me dit "gâteaux" une autre fois "biscuits" . Mais "gâteaux" sont des "cakes",

117. ## language

i fixed it as you said, what do you think about my tercet now? The Wild Dog I saw a dog Who walked in the fog He couldn’t see and got stuck in a log. He jumps up high And pretends he can fly Like a super hero in the sky. He’s really really fat He sits

118. ## Science

Why do we have an electricity crisis? What will happen if we don't save electricity?

119. ## art

information john vanderlyn

examples of quadrilateral find at home

121. ## Art

How did his artwork reflects or defines his time period? In 1842, through friendly influences, vanderlyn he was commissioned by Congress to paint The Landing of Columbus. When he went to Paris, he hired a French artist, it was said that he did most of the

122. ## elementary algebra

4x^2-45x+50=0

Explain what is meant by the "dual nature" of light

124. ## English

Can you please proofread: Aging is something that everyone will experience. Having the opportunity to explore four different types of living facilities, really was an eye opening experience, about how genuine life really is. Being able to gain educational

125. ## History

War can entrap people into the military taking away their freedom. What are some reasons for this. Ms. Sue helped me out with the queston yesterday and she was very helpful but I'm having some troubles trying to expand on it more in my paper. This was here