# Questions Asked onApril 16, 2008

1. ## Physics

If you ask a friend to drive a small nail into a piece of wood placed on top of a pile of books on your head. Why doesn't this hurt you?

2. ## Physics -Relativity

Question: If a muon is traveling at 70% of the speed of light, how long does it take to decay in the observer's rest frame (i.e., what is the observed lifetime of the muon)? Answer: =??? us

3. ## environmental science

Are cheap imports of consumer goods from China being subsidized by insuffient investment in environmental protection in that country? What information would you like to have in order to answer the question more fully? thank you for the help

4. ## Physics

Why does a convex lens magnify objects and a concave lens shrink objects?

5. ## physics-quick question

If you have a rectangular loop of area A placed in a region where the magnetic field is perpendicular to the plane of the loop, than would the emf be zero because they are perpendicular?

6. ## accounting

Hannah Knox, an architect, opened an office on July 1, 2008. During the month, she completed the following transactions connected with her professional practice: (a) Transferred cash from a personal bank account to an account to be used for business

7. ## trig

If an angle is 1 radian, what is the arc length in radians?

8. ## Physics.

You are at the top of the Empire State Building on the 102nd floor, which is located 373 m above the ground, when your favorite superhero flies over the building parallel to the ground at 60.0 % the speed of light. You have never seen your favorite

9. ## Math - Trigonometry

What is the answer to (sin45) / (cos45)?

10. ## English

Opposite of Giant Opposite of Usefulness

11. ## Convergence

explain how internet convergence, including issues about privacy protection, has affected business, families, government and the global community

12. ## maths - pls check answer

. A single die is rolled one time. Find the probability of rolling an odd number or a 6. 3/6 + 1/6 = 4/6 = 2/3 = .667

not understanding how to do this. A certain storm cloud has a potential of 1.00x10^8 V relative to the tree. If during a lightning storm, 50C of a charge is transfered through this potential differnce and 1.00% of the energy is absorbed by the tree, how

14. ## chemistry

Nitric acid, a very important industrial chemical, is made by dissolving the gas nitrogen dioxide (NO2) in water. Calculate the moles of gas produced in 2 L volume container, 736 torr and 50 ºC if the gas behaves as ideal:

15. ## chemistry

How many electrons are transferred in the reaction of hydrogen peroxide with iron (II) ion in acidic solution to form iron (III) ion and water?

16. ## math

1. A wire of length x is bent into the shape of a square. Express the area A as a function of x only. 2. A circle of radius x is inscribed in a square. Find the area inside the square but outside the circle as a function of x only.

17. ## Chemistry

how do you write the reduction half-reaction of ions?

18. ## medical insurance forms

please check my answer thanks True or False The information for Blocks 1-9 on the CMS-1500 can be obtained from the medical treatment record I said True

19. ## medical insurance forms

I was wondering If someone could please help me out this one I can't seem to find any information on this ... If a patient is covered by Medicaid, what should you put in Block # 9a ? thanks in advance

20. ## Health insurance

please check my answer thanks If both nondivorced of a dependent child have insurancce that will cover that child , which policy is considered to be the primary carrier for the child ? A the mother's insurance B the father's insurance C The coverage that

21. ## True or False health insurance

please check my answer thanks True or False A type of insurance that was designed to meet the needs of senior citizes is called medicare I say it's true

22. ## Economics

Claculate REAL GDP GROSS DOMESTIC PRODUCT for each year (2005=100) Year p q p q 2005 \$1 100 \$2 50 2006 \$2 150 \$3 100

23. ## True or False health insurance

please check my answer True or False CHAMPVA would be considered a primary payer for a patient who has SSI I think it is False

24. ## maths

determine the co-ordinates of the point of intersection of the two lines: the line through (-3;5) and (4;-2) and the y-axis

25. ## medical insurance forms

Does anyone know where I coud get more info on where you should record payments that are received from insurance companies I looked put I can't find anything thanks

26. ## English pronunciation

What are palatal consonants? How many palatal consonalt's do you have? 1. can't you 2. could you 3. miss you 4. is your In the four cases, we can find palatalization. The t,d,s,z sounds are changed into palatals when they are pronounced as a linking sound.

27. ## Math (measurement)

John A. Van De Walle states that “to measure means that the attribute being measured is “filled” or “covered” or “matched” with a unit of measure with the same attribute.” What is John Walle trying to say in the above sentence and does his

28. ## Math Units

Why is a informal math unit considered to be more fun for students than a standard math unit?

29. ## Math

x, x+5, x+9 form a geometric sequence; find the value(s) of x and the numerical value of each term.

30. ## Math

What is the total measure of all of the interior angles of a decagon? Is it 360

31. ## Physics

Find the speed of light in flint glass if the index of refraction is n=1.66. How much slower in percent of speed of light in a vacuum c does the light move in each of this medium? v=c/n v=3x10^8m/s/1.66 =1.8x10^8m/s For the percent of speed of light in a

32. ## Math

How big is each interior angle in a regular decagon? would this be 4.4 (144/10)? How big is each exterior angle of a regular decagon? Is this 36? (360/10)

33. ## English

I have to do a research paper about something that has to do with my career field which is medical. My paper is on premature babies. My question is how do I do an outline before doing my research paper, how much information do I need to put in the outline?

34. ## english

HELP!! I wrote an outline instead of a body paragraph on "Healthful eating" which was wrong. Please, can someone write a good body paragraph for me, so that I have an idea of what I'm supposed to do. Thanks

35. ## "1984"

What is the primary theme of Part 3 in "1984"? My answer: The themes of "1984" are language as mind control, intimidation, manipulation, and knowledge of the past. My problem is how do I know which one of these themes is the primary theme and how do I make

36. ## physics

Can a convex lens be used to magnify an image, "shrink" an image, or both? Explain.

37. ## Physics

A beam of light is incident on the surface of clear ice at 60 degrees with the normal. Find the angle between reflected and refracted ray. theda 1=60 n1= 1 (air) What would n2 be for clear ice? I know that index of refraction for water is 1.33. Would it

38. ## Physics

A ray of light stikes a flat 2 cm thick block of ice (n=1.5) at an angle of 45 degrees. Refracted ray travels through the glass and then is refracted back to air at the opposite side of the block. Find the angles of incident and refraction at each surface.

39. ## chemistry

In 2 - 3 scentences, please write how electrochemistry is involved in preventing corrosion. Thank you

40. ## Physics

n=1.331 for red light in water and n=1.34 for blue light in water. If a ray of white light enters the water at 83 degrees what are the underwater angles of refraction for the blue and red components of white light? Also using Snell's law : (sin theda 1/

41. ## Physics

What is the critical angles for water ice when surrounded by air? theda critial = arcsin(n2/n1) =arcsin(1/n1) What is the index of refraction of water ice? also is the above equation correct?

42. ## math

Which is an equation of the line with slope 2 and y-intercept 6? A). y=2x-6 B). y=6x+2 C). 2x+6y=1 D). y+2x+6. thanks if you can help

43. ## World History

Were currently studying the early middle ages in western europe. I have been assigned a huge ammount of homework and need some help on two questoins. Why would a lord grant an estate to a vassal? Describe the Franks? Neither was mentioned in class or the

44. ## Math

y-13=72/12 y+13=13/1+72/12=165/12+72/12 y= 237/12 y=19 9/12 y=19 3/4 ??? am I close

45. ## computer applications

What is a t1 internet connection and !@#\$%^& fast is it?

46. ## science

Hi. I know this is an opinion question, but can someone please explain the situation to me because I don't totally understand the question. Thanks. 3.Water distribution systems are natural monopolies, since it is impractical to have numerous, competing

47. ## math

Help please!: By what factor (2x, 4x, etc.) would the per capita GGP have to be increased to U.S. per capita GGP to equal the U.S. GDP in 2005? This is the information I have: -the per capita GGP is 9297 billion -the U.S. per capita GDP in 2005 is 43,000

48. ## English Expression

1. Paying attention to "linking", listen carefully. 2. Mark 'linking' where two words are pronounced as a linking sound. 3. Mark 'linking' between/under two words which are pronounced as a linking sound. (What about under instead of between?) 4. Put 'the

49. ## medical insurance forms

please check my answer thanks When should you submit a cliam to a secondary insurance company ? A when a primary insurance company returns a cliam for correction B when the patient says it is ok C At the smae time you sumbit the claim to the primary

50. ## Physics

The incident ray comes at 30 degrees to normal at the air/glass boundary and is refracted at 18 degrees to normal. a) find index of refraction of glass b)find speed of light in glass c) under what conditions and for what angles will you have total internal

51. ## math

x/x^2+2x+1 + 3/4x^2-4

52. ## Physics

Suppose you have a perfectly spherical water tank with an inside diameter of 8.6 metres. If the drain at the bottom of the tank can't handle a hydrostatic pressure of more than 50 kilopascals, what is the maximum volume of water, in litres, that can be

53. ## chemistry

Electrochemistry is commonly used in the preparation of many different substances. Pick an industrial process that involves electrochemistry and discuss any environmental or health and safety issues surrounding this process. I have picked electroplating as

54. ## math

Finding the volume of a cone: 3.14x7x7x14=2154.04 What's the next step? I can't remember to do it?

55. ## chemistry

How does pH = 8.75 give (H^+) = 1.77 x 10^-9.

56. ## Marketing

Could you please check over my t/f questions? 1. Permission based methods allow customers to opt in or opt out to ensure that emails are sent to both current and prospective customers? TRUE 2. In the consumers mind, there is a fine line between legitimate

57. ## physics repost

A car of mass 1330 kg is traveling at 28.0 m/s. The driver applies the brakes to bring the car to rest over a distance of 79.0 m. Calculate the retarding force acting on the car. same as before just posting again so you wont have to scroll. heres my work

58. ## English

Could you please give me a sentence and make it once in the CONDITIONEL and once in the SUBJUNCTIVE. I don't understand the difference between those two. I have read all kinds of explanations but I need one clear example to show me the difference. Thank

59. ## Math

What does it mean to measure something? And does the definition of measurement work well for length, area, weight, volume and time?

60. ## Physics

Suppose you have a perfectly spherical water tank with an inside diameter of 8.6 metres. If the drain at the bottom of the tank can't handle a hydrostatic pressure of more than 50 kilopascals, what is the maximum volume of water, in litres, that can be

61. ## chemistry

Question:A solution of AgNO3 (45 mL/0.45 M) was mixed with solution of NaCl (85 mL/1.35 x 10-2 M) a) Calculate the ion product of the potential precipitate. My answer: mol AgNO3 = M x L = 0.45 M x 0.045 M = 0.02025 mol NaCl = M x L = 0.0135 M x 0.085 L =

62. ## math

solve the following trig equation : 7 = 8sin(1/2)x. I can solve this using the half-angle indentity. But i need to solve this using period and phase change equation. how do i do this?

63. ## Math

Bernie is the oldest of the four Bryant brothers. Bobby is twice as old as Billy, but 2 years younger than Bernie. Bernie is twice as old as Buddy. The youngest Bryant brother is 6 years old. What are the ages of the four Bryant brothers?

64. ## Vending Machines

How does Vending machine connect to our culture and customs?

65. ## Chem!

does the addition of a strong acid increase the percent ionization of a weak acid HB?

66. ## Calculus

What is the horizontal asymptote of : y=23x/x+18 k so i know that the horizontal asymptote is -18 so that the denominator will equal zero.

67. ## maths - Probability

Numbers is a game where you bet \$1.00 on any three-digit number from 000 to 999. If your number comes up, you get \$750.00. Find the expected winnings.

68. ## science

what are sources and Health/Environmental Effects Carbon dioxide, Chlorofluorocarbons, Ground-level ozone, Sulfuric acid?

69. ## science

it comes from a whole and ends in the sky it never wants no and always asks why its the best of the best the worst of the worst. it can calm you down or send you to hell what is it?

70. ## science

how does the steepness of slofe affect stream erosion?

71. ## physics repost

What should be the angle between two vectors of magnitudes 3.20 and 5.70 units, so that their resultant has a magnitude of 6.10 units? cos=a^2+b^2-c^2/2ab cos10.24+32.49-37.21/(2*3.20*5.70) = 99 degrees

72. ## physics repost

)An elevator is moving down with an acceleration of 1.40 m/s^2. A 14.5 kg block hangs from a spring balance fixed to the roof of the elevator. What is the apparent weight of the block? m*g+m*a 14.5*9.80+14.5*1.40 142.1+20.3 162.4 N 2)A 2.7 kg box is

73. ## Math

What is the fomula to find the volume of a hexagonal pyramid?

74. ## religion

beliefs,dharma,effects on chinese live,writings ofconfucianism,legalism,daoism,buddhism.

75. ## French/Italian/Spanish Translation

how do you translate the french word générique into italian and spanish?

76. ## English grammar

How many diphthongs are there in English?

77. ## English grammar

ex) I love it. 'Love it' is pronounced as a linking sound. 'Love it' are pronounced as a linking sound. 'Love' and 'it' are pronounced as a linking sound. 'Love' and 'it' is pronounced as a linking sound. ---------------------------------- Which ones are

Pure lauric acid is melted and the freezing point is determined to be 43 degrees celsius. A solution is made by dissolving .50 grams of paradicholrobenzene into 3.00 grams of lauric acid. Determine the molality of this solution. I got 1.1m. which is right.

79. ## English Expressions

1. Paying attention to the linking mark, listen carefully. 2. Mark 'linking' on the place where two words are pronounced as a linking sound. 3. Mark 'linking' between two words which are pronounced as a linking sound. 4. Put 'the linking mark' on the place

80. ## english

Is this a good body paragraph? Did I include a topic sentence? Please let me know as I have to turn it in tonite!!! Thanks. Healthful eating encourages Americans to adopt a healthier lifestyle which will help society avoid the number one killer of

81. ## math

A triangle equals 36 in,2 angles equal 12 in and 8 in. find L, the length of the third angle

82. ## math

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

83. ## maths

1 ) Lamp posts,dust bins and benches are paced at intervals of 70 m ,56 m ,and 84 m respectively along a strech of road 8km long.At start of the road,lamp post,dust bin and bench are placed together.Only when the three objects are all placed together,they

84. ## Trig

Simplify: csc A - sin A - Cot A Cot A Csc A 1/sin - sin A - 1/tan 1/tan 1/sin -sinA?

85. ## calculus

Could somebody please check these for me? Solve the differential equation with the given initial solution. 1. (dy/dx)=(-y/3) for y(0)=10 my answer was y=10e^(-x/3) 2. dP/dt=P+4 for P(0)=100 my answer was P=104(e^t)-4 3. dz/dt=te^z for z(0)=0 my answer was

86. ## Chem II

Calculate the pH of the solution made by mixing 35.0 mL of 0.500 M ca(OH)2 with 45.0 mL of 0.710 MHCl

87. ## Chemistry

The first step of the synthesis is described by the reaction below. When 1.750 g of Fe(NH4)2(SO4)2 6H2O is mixed with 13 mL of 1.0 M H2C2O4, the theoretical yield of FeC2O42H2O is____ grams. Fe(NH4)2(SO4)26H2O(s) + H2C2O4(aq)----> FeC2O42H2O(s) +

88. ## Brainteaser

A man is on his hands and knees looking for a £5 note he has dropped. His search for the fiver continues for some time. Finally in the corner of the room he finds it. What is the first thing he does? Anyone know this?????

89. ## English

I need help with figuring out a thesis with this topic... 3 Traits of a Life Partner. Please

90. ## English/French/German

The CONDITIONEL "je donnerais" means "I would give" ("ich würde gebn" in German) right??? What does the SUBJONCTIF translate to in English (or German)? Actually, if I look at the conjugation of "donner" in the SUBJONCTIF it looks like a combination of

91. ## math (is this worked correctly)

given that a=4,b=-2 and c=3 Calculate the value of a^2-bc/b+c answer=22

92. ## how to understand this

design and implement such a function and use it in a program called part3.c that allows someone to enter two real numbers and an epsilon value (also a real number) and reports if the two numbers are equal (+/- epsilon) or not. If you were asked this

93. ## math

nicole was 1/2 as old as she will be in 8 years . how old is nicole

Should Boeing and other companies go along with China’s terms, or should they risk losing sales by refusing to transfer technology?

95. ## physics

A laser emits 1.44*10^18 photons per second in a beam of light that has a diameter of 1.98 mm and a wavelength of 524.5 nm. (a) Determine the average electric field strength (b) Determine the average magnetic field strength for the electromagnetic wave

96. ## chemistry

What is the net ionic equation for the following reaction?FeCl3(aq)+3LiOH(aq) -> Fe(OH)3(s)+3LiCl(aq)

97. ## math

solve 0=(3^0.5)tan(x+(pi/6))+1 and find all general solutions

98. ## economics

If a country such as Europe sells their saved dollars as a result in a drop in U.S. sales and purchases, will the demand-supply graph show only the demand for the dollar. I just don't understand what the demand-supply graph suppose to illustrate. Help.

99. ## Data Mining

What kind of tasks do you see becoming popular areas to be data mining? What has to be there to make an area worth while for being Data Mined? What will it take to make Data Mining more accessible for more people to be able to do it?

100. ## maths-probability

You get to throw a die. If you roll a 3, you win \$6. If you roll a 1 or a 5, you win \$3. If you roll an even number, you lose \$6. Find your expectation for this game.

101. ## maths-probability

A family has four children. The probability of having a girl is 1/2. What is the probability of having 2 girls followed by 2 boys?

102. ## social studies

what does Georgia's land do as you move from the seacoast to the norhwest corner of the state

103. ## Chemistry

What molarity of NaOH would produce a pH of 10? And how do you calculate it?

104. ## trig

If an angle is pie radians, what is the arc length in radians?

105. ## maths

Is this right, and where do i go from here??? solve p-1/2-p-2/3=1 (3p-3)-(2p-4)/6=1

106. ## trig

Work out the following identities a) sin theta/cos theta b) tan theta cos theta

107. ## trig

Find all angles of a right triangle triangle RST given that r = 18 cm and s = 20 cm

108. ## alegebra

how is dividing a polynomial by a binomial similar to or different from long division.

109. ## Function Notation

Ive been shown that a function can be written like so f:X->Y,f(x)=rule where X is the Domain and Y, the co-domain. Firstly, what is the co-domain? Ive tried looking it up but all I get is "the set of which y values fall in". If that is the case, say for

110. ## Physics Question

GIVEN: Two particles are created in a high-energy accelerator and move off in opposite directions. The speed of one particle, as measured in the laboratory, is 0.580c, and the speed of each particle relative to the other is 0.920c. QUESTION: What is the

111. ## trig

A geologist stands on the shore of a lake in Ontario with a theodolite and finds that the angle of inclination to the top of a distant rock pillar is 28.5 degrees. He then walks 10 m along the shore at a 90 degree angle to his measurment, and finds that

112. ## trig

Sec(2a0)=Sec^a/2-sec^2a

113. ## economics

If a country sells a currency dollar would the exchange rate price be the currency/dollar or dollar/currency and what will the demand be.

114. ## Physics

I have to make two multiple-choice questions for this standard: Standard 4b: Students know how to identify transverse and longitudinal waves in mechanical media, such as springs and ropes, and on the earth (seismic waves). The first question I already

radical .01X to the 4 y to the 2

Accounting Help-Preparing and posting journal entries; and preparing a trial balance.? Shelton Engineering completed the following transaction in the month of June. Received a bill for rent of equipment that was used on a recently completed job. The 1,200

117. ## Philosophy

I have to explain what suspension of belief is according to skeptics and how it comes about? I cannot find a reasonable explanation, can someone help me out? Thanks!

118. ## trig

Please answer b)only a) If a triangle has angles of 35 and 65 degrees, what is the measurment of the third angle? Is it a right triangle? b)Find all angles of a right triangle triangle RST given that r = 18 cm and s = 20 cm

119. ## Nuclear physics

1)7Be decays with a half-life of about 53 d. It is produced in the upper atmosphere, and filters down onto the Earth's surface. If a plant leaf is detected to have 300 decays/s of 7Be, how many days do we have to wait for the decay rate to drop to 13.6/s?

120. ## Juvenile Justice Procedure

Locate three separate corrections programs and detention facilities in the Virgin Islands designed for juveniles in gangs. Make sure you have selected one detention facility and one correction program. Your third selection can be of either genre. • Write

121. ## science

I'm doing a research paper on whales. I need to know how they lost their legs and went to the waters. I also need to know why they went to the waters.

122. ## math

Let f(x) = {√x, 0 ≤ x ≤ 1 { 1/x, x > 1 (a). Identify any intercepts (b). Graph the function (c). Find the domain and range

123. ## physics

1)A hiker throws a ball at an angle of 21.0 above the horizontal from a hill 21.0 m high. The hiker's height is 1.750 m. The magnitudes of the horizontal and vertical components are 14.004 m/s and 5.376 m/s, respectivley. Find the distance between the base

124. ## physical science

When an electron is displaced in a semiconductor, the hole that's left behind is

125. ## calculating infinity

can someone tell me wich one of the two answers for these two limits is correct? lim (-1)^(n) = 1 or -1 n-> +infinity lim (-1)^(n) = 1 or -1 n-> -infinity Thanks in advance.

126. ## Science

8. The continual flow of the cytoplasm, _________________________________, facilitates the movement of _______________________________________ within a cell. Help!

127. ## Science

What are the major differences between single celled organisms and multi-cellular organisms in how they acquire nutrients and remove wastes?

128. ## Psychology

What kind of life events or situations are "fight or flight" moments? What are some psychological and physiological effects?

129. ## English

Uther Pendragons willingness to give his son Arthur to Merlin in exchange for spending just one night with Igraine reflects the idea of courtly love chivalry "contemptu mundi" NoNE OF THE ABOVE This confuses me, I don't understand why he gave his child up,

130. ## english

What is the origin of "red herring"? How is it used in context? Does it mean distraction?

131. ## social studies

Is Elaine Chao a U. S. citizen? If yes, when did she become a citizen?

132. ## physics

A car of mass 1330 kg is traveling at 28.0 m/s. The driver applies the brakes to bring the car to rest over a distance of 79.0 m. Calculate the retarding force acting on the car. (79.0/28.0)*1330 3752.5 I asked before but I wasn't sure if I did it right

133. ## Maths

At a vending machine, 6/11 people select a cola soda. Find the probability that all of the next 3 people select a cola soda.

134. ## ALGEBRA

The colors red, orange, green, blue, indigo, and violet are written on slips of paper and placed in a hat. What is the probability that the slips will be chosen in the order of the colors of a rainbow (the order listed above)

135. ## computer history

who invented the first computer

136. ## Biology

What is the main problem with external fertilization, and how is this comensated for? tried finding the answer but cant help

137. ## Economics

How would the demand-supply curve look if Japan sells dollars for yen?

138. ## Economics

In what ways can the Federal Reserve preserve a strong dollar in the U.S. when there is a decline in sales?

139. ## MATH

the class president plans to randomly select a committee of three people from three boys and five girls. How many committees are possible?