Questions Asked onOctober 25, 2007

1. Physics

A train slows down as it rounds a sharp bend, slowing from 90.0km/h to 50.0km/h in the 15.0s that it takes to round the bend. The radius of the curve is 150m. Compute the acceleration at the moment the train speed reaches 50.0km/h. Assume it continues to

2. physics

A .400 kg bead slides on a curved wire, starting from rest at point A. If the wire in problem 61 is frictionless between points A and B (down 5m) and rough between B and C (up 2m), and if the bead starts from rest at A, (a) find the speed at B. (b) If the

3. Math

A new school has exactly 1,000 lockers and 1,000 students. the student meet outside the building and decide on this plan. The first student will enter and open al the lockers. The second student will enter and colse ever locker with an even number (2,4,6,

4. Physics

Jane is sitting on a chair with her lower leg at a 30.0° angle with respect to the vertical. You need to develop a computer model of her leg to assist in some medical research. If you assume that her leg can be modeled as two uniform cylinders, one with

5. writting skills

In the metaphor of language as a layer cake given in your study unit, which of the following words could be considered to be a frosting word?

asked by demarcus ellis
6. Chemistry

Translate the following sentences into unbalanced formula equations: (1) silver nitrate and soduim chloride react to form silver chloride and sodium nitrate. (2) iron (III) sulfate and calcium hydroxide react to form iron (III) hydroxide and calcium

7. Algebra

A statue is 8ft. tall. The display case for a model of the statue is 18 inches tall. Which scale allows for the tallest model of the statue that will fit in the display case? A. 1 inch: 2 inches B. 1 inch: 7 inches C. 1 inch: 5 inches D. 1 inch: 10 inches

8. physics

A catcher “gives” with the ball when he catches .15 kg baseball moving at 25 m/s. (a) If he moves his glove a distance of 2.0 cm, what is the average force acting on his hand? (b) Repeat for the case in which his glove and hand more 10 cm.

9. Science

QUESTION: "Make a hypothesis about how space craft that travel through the solar system obtain the energy they need to operate." We are studying energy forms in class (Kenetic, Potential, Nuclear, etc.)... i need help NOW!

10. Physics

A 1500 kg car moving east at 15 m/s collides with a 1730 kg car moving south at 15 m/s and the two cars stick together. What is the velocity of the cars right after the collision? How much kinetic energy was converted to another form during the collision?

11. Chemistry

what volume of water must be added to 10ml og 6.0M NaOH to make a solution that is .30 M in NaOH How do I solve for this

12. Algebra word problem

please help me with the following: The value of a particular investment follows a pattern of exponential growth. In the year 2000, you invested money in a money market account. The value of your investment t years after 2000 is given by the exponential

13. Teen Suicide

I have to do a term paper on Teen Suicide. Here is our format: I. Title Page II. Table of Contents III. History of Problem IV. Who's affected V. Signs of Problem VI. Agency VII. Treatment VIII. Prevention

14. ap physics

can you please check my answers and help me with one question? During a lie dector test, a voltage of 6 V is impressed across two fingers. When a certain question is asked, the resistance between the fingers drops from 400,000 ohms to 200, 000 ohms. What

15. Chemistry

Why do ionic compounds conduct electricity when they are melted or dissolved in water?

16. Biology

What is the function of tRNA?

17. Cultural Diversity

Can you help with this question? Which of these scenarios best describes a nuclear family? A) Jeremiah is growing up within a cluster of adults and children who maintain their own living quarters but come together for work and meals. Child-rearing is a

18. Psychology

Who is Phineas Gage and how did his behavior change after the accident? Could anyone help me with a report about behavioral repercussions od different brain injuries? I have to pretend someone I know has a brain injury and create 5 journal entries

19. Calculus Check

A survey of one thousand people found that 70% of the people have a CD player, 85% have a telephone, and 45.2% have a computer. At least how many people have all three objects? Is the answer 258, because that's what I keep getting?

20. Algebra1

How would i solve this problem?(It's on a MathCounts worksheet and i don't understand it) the ^ mean exponents -(1^2008)+(-1)^2007

21. maths

Keshawn and Samantha are in a science class with 18 other students. The teacher randomly divides the class into 10 pairs of laboratory partners. Whar is the probability that Keshawn and Samantha are lab partners?

22. math

a bathtub can be filled by the hot and cold water pipes in four minutes and, when full, can be emptied by the waste pipe in five minutes. If it is half full and all three pipes are set running, when will the tub be filled?

23. Algebra

The size of the beaver population at a national park increases at the rate of 5.1% per year. If the size of the current population is 151, find how many beavers there should be in 4 years. Use the function f(x)=151e^0.051t and round to the nearest whole

24. Chemistry

Write the binary formulas for the compounds formed from the following ions: Na+, Cl-

asked by Danny M
25. Ms. Sue,this is for you--please read

Would you please look on page 2,under Cultural Diversity and help me with the question I had asked earlier? Thanks!

26. physics

If the filliament resistance in an automobile headlamp is 3 ohms, how many amps does it draw when connected to a 12 volt battery? I got 36 watts? would I divide 12 volts/3 ohms= 4 amps

27. civics

What is a plurality and majority of pressidential votes?

28. MATH

An application of a rational function is T = (AB)/(A+B), which gives the time, T, it takes for two workers to complete a particular task where A & B represent the time it would take for each individual worker to complete the identical task. Estimate how

29. History

whats material were Portrait Masks made out of?

30. chemistry

I need to calculate the pressure exerted by the hydrogen in an eudiometer for a weighing by redox lab. mass of Mg: .021 g temp: 295K barometric pressure: 29.87 inches Hg volume of H2 gas: the difference between tiop water level in eudiometer = 322 mm the

31. chemistry

I need to calculate the pressure exerted by the hydrogen in an eudiometer for a weighing by redox lab. mass of Mg: .021 g temp: 295K barometric pressure: 29.87 inches Hg volume of H2 gas: the difference between tiop water level in eudiometer = 322 mm the

32. english

Is the word ivented a linking verb ,Action or an auxilary verb?

33. Math repost for Andy

math - Andy, Thursday, October 25, 2007 at 7:37pm can you please help me with this math problem? If you can here is the question: Seventy-five years ago, pharmacists weighed medicine on balances like the ones you have been using. The mass pieces were very

34. PreCalc (Sine)

I'm having trouble understanding a sine concept. For instance, I know that the sine of 15 is .25881. Likewise, the sine of 165 is also .25881. How can I find other values of sine that also equal .25881? Thank you very much.

35. Honors Science

heyyyy i have this scale,the points are 0,5,and 10. and between 0-5 also 5-10,there are only 2 more points that numberless. i am confused. what numbers could possibyl go there.

36. statistics

Compute the expected return if two mega lottery tickets are sold for \$6, if the winning ticket is drawn from five (5) million tickets sold, and if the winner receives \$10 million.

37. ap physics

can you please check my answers and help me with one question? During a lie dector test, a voltage of 6 V is impressed across two fingers. When a certain question is asked, the resistance between the fingers drops from 400,000 ohms to 200, 000 ohms. What

38. science

how would i draw the structure of a dipeptide which is made up of the following; Glycine and phenylalanine? please could somebody point me in the right direction?

39. statistics

Given a distribution with mean X and standard deviation S, answer the following. 4.1 Determine the mean and standard deviation if constant K is added to each observation 4.2 Determine the mean and standard deviation if constant K is multiplied by each

40. maths

I have an illustration in my book of a quadrilateral inside a circle. The quadrilateral is ABCD; AB is a vertical line and then AC and BD are the same length, but AC slopesd downward and BD upwards. Finally, there's CD; it's not vertical, as it slopes

41. english

My teacher told me that this sentence is ambigious. Can someone help me to fix this. "One of the main impacts is the transmission of many infectious diseases carried by insects, such as malaria and dengue which are sensitive to temperature, humidity, and

42. math

A particle moves with constant speed of 3m/sec along path y=3x^2 What is the acceleration of the particle at x=1.5m? I know that Velocity is y'=6x Somebody please help!

43. Economics

from a supply/demand side, I assume that the supply of savings would move inward if the gov lower taxes on profit resulting in an increase in the deficit. Am I correct in my thinking?

44. math

Can someone check and tell me if these are correct or not. subtract -88-53= Subtract 7/9 - (-13/18)=-11/18 multiply (3)(7)(-9)=-189 find the reciprocal of (-1/7)(14/3)(9)

45. Calculus Bonus

There is this bonus that I need so bad for my grade. I have tried several ways to answer this question and have tried several equations. Please Help Bouquets are priced on the basis of the numbers and types of flowers used. What is the price of the fourth

46. Stats

Where can I find fuel efficient car sales statistic for recent years?

47. Math

I don't get either of these equations. Please help me out! 1. Music Mart sells an average of 150 cassette tapes daily at \$10.00 a tape. If 15 sales are lost for each \$0.50 increase in unit price, what price will maximize profits? What will be the resulting

48. Algebra

If I have 12 / 2(x+3) that is the same as saying 12/2 * (x+3) or 6(x+3), right?

49. physics.

please check my answers. when a lamp is plugged into a 120 V socket, each coulomb of charge that flows in the circuit is raised to a potential engergy of 120 joules? which offers more resistance to water flow, a wide pipe or narrow pipe? I got wide as my

50. Science

51.0, how many integers are there. I know that there are three in 0.004. I also know that there are five 10.004. But I don't remember if the 0 after the . counts or not.

51. CALCULUS

how would you differentiate ln ln ln x, and what would be the domain??

52. Biology - Diffusion

I know diffusion is movement of matter from high to low concentration. Does that mean that it will try to make the molarity of both sides equal?

53. science-plz help!

why is it that when water is decomposed through a process call electrosys (when electricity is put through water)there is more volume of hydrogen than oxygen produced?

54. Biology

What is the function of tRNA?

55. REPOST: Teen Suicide

Posted by Wenmar on Thursday, October 25, 2007 at 9:40pm. I have to do a term paper on Teen Suicide. Here is our format: I. Title Page II. Table of Contents III. History of Problem IV. Who's affected V. Signs of Problem VI. Agency VII. Treatment VIII.

56. Algebra

My homework is to solve by completing the square. But how can you complete the square on this problem? -3x^2 + 7x - 8 The -3 doesn't factor out.

57. history

How long were the Americans able to hold the Alamo?

58. government

What is the difference between a totalitarian and a communist government? Thank you!

HOW WOULD YOU integrate this equation between zero and pi/2 1/(1+(tan^2008)xdx

60. Calculus Bonus

Form two four-digit numbers from the digits 2, 3, 4, 5, 6, 7, 8, and 9, using each digit exactly once, so that the absolute value of the difference of the two numbers is as small as possible. Confused need to double check with you all.

61. statistics

3. Prove (not show) that following two methods, long and short respectively, to compute the population variance yield the same result. ? (x i - ?) 2 / n, where i = 1, n ? (x i 2 - (? x i) 2) / n, where i = 1, n

62. History repost for Julie

History - julie, Thursday, October 25, 2007 at 7:31pm umm i need help ahh how old was elvis presley when he became famouse

asked by Ms. Sue
63. statistics

Given the ensuing well drilling data, answer the following. [Reference: #4.78, page 172] • .30 (30%) probability of a productive well absent test information • Pre-drilling ballistics test ‘s affirmative result correctly predicts a productive well

64. Autonomous Language

Which example characterizes the use of autonomous language? I am thinking example A,but I'm not sure 1. Mary,age four,says to her mother, "I would like a banana,please," instead of pointing or using other sounds and gestures to get the banana. 2. When

65. science

What are the definitions for rock and mineral?

66. engish

when you write a paper setting,plot,characters,climax,and what else..........??

67. social studies

I have an assignment to write 3 paragraghs on age of exploration and age of colonization. I cannot find any material on them ,what can i do because when i type in the name it comes up with shopping stuff?

68. Soc. studies

what chemical was used to embalm the organs?

69. Microeconomics

Could someone please show me how to solve for P and qs in the below problem. P= 50 + 6qs

70. mathematics

What is something that is about or exactly a dekaliter?

71. biology

how does cellulose adapt to its function!? i think it has something to do with there being a strong cell wall. however im am unsure. please could somebody help me thanks

72. social studies

What is a dissenter?

73. social studies

Describe the Great Migration.

74. physics

a telephone engineer feeds a sound signal into the mouthpiece of a telephone.As part of the tests he is making he incresesthe frequency of the sound.HOW WILL THIS EFFECT TYE ELECTICAL SIGNAL PASSING ALONG THE TELEPHONE WIRE?

75. Math!!

for my project i have to make a slogan or a catchy phrase for the word circle please HELP!!!!!!!!!!!!!!!!!!!!!!! thank you!!1

76. statistics

Given the ensuing well drilling data, answer the following. • .30 (30%) probability of a productive well absent test information • Pre-drilling ballistics test ‘s affirmative result correctly predicts a productive well .70 of the time •

77. Algebra II

Find g(f(x)) and f(2g(x)) where f(x)=2x^2-1 and g(x)= the absolute value of x-1

78. organic chemistry

EAS reactivity. I am comparing two benzene rings. One has an NO2 group attached to it and the other has a C(=0)CH3 attached to it. I understand they are both deactivating groups so they are low in reactivity but how do I know which of the two is the least

79. physics

A particle moves with constant speed of 3m/sec along path y=3x^2 What is the acceleration of the particle at x=1.5m?

80. algebra

wat is the value of f(3)..... (function value)

81. Language

What is a proper noun

82. SCIENCE!! PLEASE HURRY I HAVE TO DO IT NOW!

why are off-highway vehicles so damaging to desert soils?well i have to create a pamphlet on why they are so damaging to the desert soils...

83. mathematics

What is something that is about or exactly a centigram?

84. Government/Social Studies

I have to locate information about racially motivated events and/or crimes that occurred between 1980 - 2000, that resulted in changes in the law or school policies. Where do I start? Please help!!

85. Scienc

World poplation grow each year,does this mean the mass off earth increases each year? Why?

asked by Nazharia Zehr
86. Science

does the brain atoms that were once apart of albert einsteins?

asked by Nazharia Zehr
87. mathematics

What is something that is about or exactly a kiloliter?

88. eiglish lit

The hound of baskervill - What is the significance of the hound? How does it represent Darwin's theory phernology-is the hound natural or cultural why is the hound compared to both criminal and dictective

89. science

name some of the simple machines!!!

90. math

it is greater than 43 and less than 52. if you add the digits the sum is 8 write the number word

91. MAth B

How do you simplify this? --- --- / 1 / 5/ - * /18 / 3 / The hyphens and slashes are meant to be radical signs. Thank you!

92. Algebra II

Find g(f(x)) Where f(x)=2x^2-1

93. Algebra II

Solve the inequality: 3[m-4]>6. []=the straight lines indicating inequality. Thanks for the assistance.

94. Legal and Ethical

A con lobbyist argue that a higly regulated environment makes health care and human service delivery too complex and beaucratic, reducing the quality of care to clients. How can I write a 350 word response and what should I say agreeing with this. Could

95. English

Hai!!! I really need help with Page 3 of Curious George goes to a chocolate factory. When I searched in google books, it didn't tell me the page 3. Pls do help me... Thx for helping me.. ^-^

96. mathematics

What is something that is about or exactly a centiliter?

97. mathematics

What is something that is about or exactly a decigram?

98. integers

-26 + (-13) rewrite each expression without double signs then simplify

99. home economics

what are some career that help family during labor of patient

100. math

Does anyone know what function value is and can someone show me an example? Thanks for helping

101. English

How is himself a relative pronoun?

102. English Expressions

1. I have to study at Jonny's class. 2. I have to study in Jonny's class. Which preposition is right?

103. Financial Management

How would you compare "theoretical price or (Po) to Stock Quote or (P)? Any help would be appreciated

104. social studies

Describe England in the 1620s.

105. PHYSICS

integrate(1/(1+(tan^2008)x)dx) between zero and pi

106. science

how to draw a sedimentary rock with at least 4 layers?

107. algebra 1

ok it goes 15/m+3 = 5/m how do i do that

108. mathematics

What is something that is exactly or about a miligram?

109. mathematics

What is something that is about or exactly a mililiter?