# Questions Asked onNovember 7, 2007

1. ## physical science

a 1.0 kg sample of metal with a specific heat of 0.50KJ/kgCis heated to 100.0C and then placed in a 50.0g sample of water at 20.0C. What is the final temperature of the metal and the water? I can't figure this out. Is the answer room temperature???

2. ## Physics

A small block on a frictionless horizontal surface has a mass of 2.50×10−2 Kg. It is attached to a massless cord passing through a hole in the surface. The block is originally revolving at a distance of 0.300 m from the hole with an angular speed of

3. ## Physics

A lever is 5m long. The distance from fulcrum to the weight to be lifted is 1m. If the worker pushes on the opposite end with 400N, what is the max weight that can be lifted? l=5m h=1m F=400N F_g=? torque=F_g*l I first must find torque so that I can plug

4. ## math

happened when two fruit companies merged?

5. ## AP chem

This is part of a marathon problem, we have to identify the five compunds of H, N, and O described below. For each compound, I have to write a Lewis structure that is consistent with the information given. a.) All the compunds are electrolytes, although

6. ## Woods.

List 5 or more types of driving tools.

7. ## Physics

"the total angular momentum of an object changes when a net external force acts on the system." This statement is: a)always true b) never true c) sometime true, it depends on the force's direction d)sometime true, it depends on the force's point of

8. ## Chemistry

Can carbon monoxide leak (from a fireplace, barbeque, water heater)?

9. ## Physics

A 9 kg lead brick falls from a height of 1.8 m. a) Find the momentum as it reaches the ground. b) What impulse is needed to bring the brick to rest? c) The brick falls onto a carpet 2.0 cm thick. Assuming the force stopping it is constant, find the average

10. ## Physics

The outstretched hands and arms of a figure skater preparing for a spin can be considered a slender rod pivoting about an axis through its center. When the skater's hands and arms are brought in and wrapped around his body to execute the spin, the hands

11. ## Federal Tax II

Perry organized Cardinal Corporation 10 years ago by contributing property worth \$2 million, basis of \$450,000 for 2,500 shares of stock in Cardinal, representing 100% of the stock in the corporation. Perry later gave each of his children, Brittany and

12. ## Chemistry

The bond energy of the O2 molecule is 495. a) calculate the minimum frequency and max wavelength of light required to break this bond. b) how many photons of this wavelength would it take in order to break open the bonds of all the oxygen molecules in a

13. ## math

How do I derive the secant reduction rule? Integral (sec x)^n dx = Integral (sec x)^(n-2) * (sec x)^2 dx = Integral ((tan x)^2 + 1)^(n/2-1) * (sec x)^2 dx Doing a substitution with: u = tax x du = (sec x)^2 dx = Integral (u^2 + 1)^(n/2-1) * du At this

14. ## Math(Algebra 1)

Im doing math homework and having some trouble. Its called "Graphing equations", and this one is hard. It says 2x-y=7 and then I have to match it with a graph in the textbook. What do I do first to be able to match it? Please help a.s.a.p.

15. ## Science.

What are some types of tools that a carpenter would use? List 5 or more please.

16. ## chemistry

Hey, I am having a real hard time getting the answers to the problems. Any help would be greatly aprreciated! 1. When 11 mL of a solution containing 2.9 M AlBr3 is diluted to 33 mL, a dilute solution is formed. What is the Br- concentration in 25 mL of the

17. ## Math

Using the terms factor,divisor,multiple,product,and divisible write as many statements about 6x8=48. My son is in learning support and has this problem and I don't know how to help him I am not good at math. Thank you for any assistance. Tyrone's mom

18. ## Physics

A horizontal segment of pipe tapers from a cross sectional area of 50 cm2 to 0.5 cm2. The pressure at the larger end of the pipe is 1.34 105 Pa and the speed is 0.038 m/s. What is the pressure at the narrow end of the segment?

19. ## calculus

Can you give me a good website on the topic, slope fields and differential equations? I need to match six slope fields with the correct differential equation. 1. dy/dx=x-y 2. dy/dx=1+x 3. dy/dx=cosx 4. dy/dx=2x 5. dy/dx=x+y 6. dy/dx=y(2-y)

20. ## U.S. History

What was the bicameral legislature exactly?

Badminton Specific Purpose: To inform my audience about the laws of the game, equipment, and badminton strokes.

22. ## Physics

A glass ball, ball A, of mass 6.0 g moves at a velocity of 19.0 cm/s. It collides with a second ball, ball B, of mass 9.0 g, moving along the same line of velocity of 11.0 cm/s. After the collison, ball A is still moving, but with a velocity of 8.0 cm/s.

23. ## Algebra 1

Traingles C and D are similar. The area of triangle Cis 47.6in2. The base of triangle D is 6.72in. Each dimension of D is 6/5 the corresponding dimension of C. What is the height of D? How in the world do you this problem!! Please help BIG TEST TOMMOROW!!!

24. ## MATH

Please help me with these problems. Work and answer is appreciated! :) thanks. 1. Find on the interval theta is greater than or equal to 0 and less than 2pi; then find the general solution: 5tantheta+1=-2.89 16cos^2theta-6=3 6sin^2theta+sintheta=2

25. ## Science

Explain the main differences between budding and regeneration.

26. ## CHEMISTRY

If a Li 2+ ion, initially in the 2nd excited state absorbs a photon of light with a fequency of 2.82 X 10^6 GHz, what will be the final energy level for this electron? Show all stepts to get final energy level. i have no clue what this question is even

27. ## AP CHEMISTRY

If a Li 2+ ion, initially in the 2nd excited state absorbs a photon of light with a fequency of 2.82 X 10^6 GHz, what will be the final energy level for this electron? Show all stepts to get final energy level. i have no clue what this question is even

28. ## Math - Continuity

Determine the constants a and b so that the function f is continuous on the entire real line: f(x) = 2 , x=

29. ## spanish

complete the sentences with the correct demonstrative adjectives - I answered below the questions are my answers correct? ______(that) camisa del algodon no? Prefiero cosas de algondon. Que piensas de ______ (these) pantalones? 1. esa 2. estos Ya no tiene

30. ## What does the following ...... mean ??

Since English is my second language, I have difficulty understanding the language overall. So, if someone can please translate the following to simple terms without missing key concepts, that'll be appreciated! The Masterstroke That Launched A Masterpiece:

asked by English as my second language
31. ## physical science

flourine is a halogen is it also a non-metal

32. ## ENGLISH

If someone has time can someone help me out I have to create a plan for upper management and them do an outline how would i prepare the plan. Any help will be great to start me off with. It deals with the topic of me being a secretary i am new in the job

33. ## spanish Sra JMcGuin

thanks is it - Los flores cuestan dieciocho dolares. we are suppose to use one of the 4 phrases to answe the 6 questions could you check this please. Gaby is buying a gift for her dad what might she say in reacting to those items? choices - que caro! Que

34. ## chemistry

Substition reactions in Alkyl Halides. If it is a secondary carbocation I know it can be SN1 or SN2 and the solvent used can help determine which. Is an aprotic solvent SN1 or SN2?

35. ## Science

Explain the main differences between budding and regeneration.

36. ## Math

What is the name for the bottom number of a factor.

Please check my answers: why does an iron core increase the magnetic iduction of a coil of wire? -I am thinking it has something to do with the voltage being increased. Will a cyclist coast farther if the lamp is connected to the generator on his bicycle

38. ## physical science

are alkali metals or alkaline earth metals soft silver - white, shiny metals

39. ## math

Is the answer is correct ?? lim ((x^10)-1)/(x-1) x-->0 is the answer is 1 ???

40. ## Preschool question

For many children,the development of imagination affects the development of which? empathy,intellect,literacy, or parallel play skills Is the right answer empathy?

41. ## english

hi i was just wondering if this makes sense and if it is a good remembrance day poem: Restless nights, awake in a nightmare Endless worrying of what would await Making it through, one day at a time Expecting death, a constant companion Many mens fate

42. ## Science

When you weigh zinc powder and then burn it with a bunsen until it turns yellow, why does it weigh less? Please can some-one help me because it is in for tomorrow and I have no clue.

43. ## Math

Hi. I have trouble calculating money or change for purchases mentally. Could you give me some strategies to help? My difficulty is also doing it quickly so I know the right amount to give/check for. Thanks!

44. ## CHEMISTRY

What would be the uncertainty in velocity (miles/hr) of a neutron beam particle if the position can be measured within +/- 25 angstroms. The rest mass of a neutron = 1.67493 X 10^-27 kg or 1.008664904(14) amu. I know you have to use the heisenberg

45. ## Philsophy

how would i apply the princple of privacy to charles darwin and his reluctance to publish his results on natural selection? (princple of privacy= respect personal privacy and confidentality) as in, how would i explain that he had no moral obligations to

asked by Student who hates philosophy
46. ## Literature- Julius Caesar

During act 1- scene 2 in julius caesar Brutus begins to consider a mighty ambition...What is it and why could it be dangerous for him?

47. ## Science

Explain why it is an advantage for organisms to have more than one means of reproduction

48. ## Character Education

Can you find any information that Character Education benefits from volunteering? Also, does raising money in a school for a cause usually work?

49. ## math

if i have 12 markers,but one sixth of them work.wich one is equal to one sixth. A.10/12 B.8/12 c.4/12 d.2/12 Show work

50. ## math

if 15 counters are the whole set, how many are 3/5 of the set?

51. ## AP chem

This is part of a marathon problem, we have to identify the five compunds of H, N, and O described below. For each compound, I have to write a Lewis structure that is consistent with the information given. a.) All the compunds are electrolytes, although

52. ## history

How does the nationalism that developed over the Berlin Wall in Germany differ from the situation in Northern Ireland with the Catholics and Protestants?

53. ## science

what is the size of a x-rays?

54. ## Physics

The launching speed of a certain projectile is 6.4 times the speed it has at its maximum height. Calculate the elevation angle at launching. I have noo idea how to start this one. Please help!

55. ## Writing

I'm writing a paper on comparing and contrasting the emotional characteristics of Elizabeth from Pride and Prejudice and Jane from Jane Eyre, and need help with my thesis. My working thesis is: Elizabeth Bennett and Jane Eyre tend to let subconscious

56. ## sra JMcGuin

How would you ask how much the following items cost. Model that tie Cuanto cuesta esa corbata? 1. these socks answer: Cuanto cuesta estos calcetines 2. those pieces of candy answer: Cuanto cuesta esos dulces 3. that board game answer: Cuanto cuesta juego

57. ## science

Never found in nature uncombined? Alkali metals Alkaline Earth Metals Boron Family Carbon Family Nitrogen Family Oxygen Family Halogen Family Noble Gases

58. ## spanish sra JMcGuin

Look at the following items and write a sentence telling how much they cost. 1. disco compacto \$15.00 answer: el disco compacto cuestan quiense dolares 2. camisa \$20.00 answer: la camisa cuestan vente dolares 3. pantalones \$20.00 answer: Los pantalones

59. ## Food and Nutrition

Hi, I am doing a report on Dextrose, a food additive and i can't find the disadvantages and advantages of using this substance along with any possible allergic reactions.

60. ## spanish Sra JMcGuin

Hi I have 4 work sheets to do tonight I do not get home home until about 6pm what time are you on.

61. ## Science

Topic: Air Pollution Who is creating the most and polluting the most?

62. ## Science

Esplain how the north pole of the bar magnet got its name?

63. ## math

Jackies kitten is stuck on the window sill of her neighbors house. The window is 2.8m above the ground. The base of the ladder must be 0.7m away from the house and the ladder must extend 1m above the window sill. Will she be able to rescue the kitten,

64. ## sra JMcGuin spanish

Hi - free period - I hope to haev it completed by 7:00 pm tonight it takes me some time to type the questions nad my answers. That was why my mom suggested a private tutor so we could fax or work at my home. My advanced math tutor gets 70.00 an hour.

65. ## Accounting

On the balance sheet it states that bonds payable is \$32,000 and Discount on bonds payable is \$2000. When it says that the company retired the bond at net book value, does that mean they cashed out \$30,000 and that's the amount that goes into the Cash Flow

66. ## english

whats a good word for a quality that someone has i cant think of the right word. like if someone was brave or courageous, the courage that that person ______ ??

67. ## Statistics - Probability

Viruses reach networks by requests for communication that are identified as packets. A security system can detect them if at least one such packet is observed by a network sensor. Assume that the probability of observing a single packet sent from a new

68. ## homework ath physics

how to become en expert?

69. ## Jupiter

Why does Jupiter spin?

70. ## math

integrate: (x^2 + 1)^k dx

71. ## English- In Cold Blood

Does In Cold Blood by Truman Capote have a protagonist? is it Herb Clutter, Dewey, or Perry? If so, does that make it a creative work? If not, explain how it is simply eloquent journalism.

72. ## trigonometry

I have the trigonometric equations: y=3+2sec(pi/8)(x-3) y=12+4cot(pi/6)(x-1) y=3+7csc(pi/4)(x-1) how do I make these into sine, cosine, and tangent equations so that I can work with them more easily?

73. ## math

the sum of Jared's age and kayla's age is 21. kayla is 5 years older than jared. How old are kayla and jared??

74. ## science

Why can you see a red-colored light coming from the heating element of an operating toaster?

76. ## math

how many hours must darcey work at \$13.50per hour to earn \$472.50=

77. ## Art

Which African society produced musical instruments as artwork? Ancient kingdoms, Ottoman Empire, Nomadic cultures, or Sedentary Farmers? I believe that it is the Ottoman Empire.

78. ## math

Use the digits 0, 2, and 5 to make a 3 digit number that has both 2 and 5 as factors.

79. ## math

Compare 1/3 of 60 to 1/5 of 100.

80. ## math.algebra

i need help with this problem: If the square of 2 less than an integer is 16, find the number(s).

Why are employees viewed as adding value to market capitalization

82. ## math

How do you find the surface area of a sphere?

what is a competitive relationship name explain examples

84. ## U.S. HIstory

Why might the early years of American government be called the "Critical Period"???

85. ## Earth Science

How can a metamorphic rock change into another type of metamorphic rock?

86. ## DT

What are the three main properties of a Conker shell ?

87. ## science

What is the male & female part of a plant?