# Questions Asked onJanuary 25, 2007

1. ## Chemistry

How are the two parts of a conversion factor related? Either the numerator or the denominator is one of the units needed for the converstion, then the denominator/numerator is the other unit needed. thanks. whats two conversion factors based on the

2. ## Chemistry

How do I make the following coversions, in standard exponential form? 1)14.8g to micrograms 2)3.72 X 10-3kg to grams 3)66.3 L to cubic centimeters 1 g = 10^6 micrograms = 10^6 ug. 14.8 g x (10^6 ug/1 g) = 14.8 x 10^6 ug = 1.48 x 10^7 ug. You do the others.

3. ## Chemistry

What conversion factor would you use to convert between these pairs of units? a)minutes to hours b)grams to milligrams c) cubic decimeters to milliters. There are 60 minutes in 1 hour. There are 1000 mg in 1 g. There are 1000 cubic centimeters in 1 cubic

4. ## Physics/Science #3

A ball is thrown vertically downward from the top of a 35.9-m tall building. The ball then passes the top of a window that is 10.7 m above the ground 2.00 s after being thrown. What is the speed of the ball as it passes the top of the window? The equation

5. ## physics

One end of a uniform 4.0-m long rod of weight is supported by a cable. the other end rests against the wall, where it is helf by friction. The co-efficient of static friction between the wall and the rod is .50 Determine the minimum distance,x,from point A

6. ## physics

A water molecule consists of an oxygen atom with two hydrogen atoms bound to it. The bonds are .100nm in length and the angle between the two bonds is 106 degrees. Use the x-y axis shown and determine the location of the center of gracity of molecule.

7. ## help me unscramble this word

ok can you help me unscramble this word "ANLDEGN".When it is unscrambled it its either the name of an ocean, country, state, city, or animal. Try these: http://www.ssynth.co.uk/~gay/anagram.html http://www.unscramble.net =) Thank you for using the Jiskha

8. ## need HELPwith 2 questions!!

How long is day and how long is night? Does the sun come up in the morning all over the world? Explain please help me I only need: How long is day and how long is night? Does the Sun come up in the morning all over the world? Please explain to me. At any

9. ## Physics

A hockey puck travelling at 26 m/s [E 22* S] rebounds off the board at 21 m/s [E 22* N]. The puck is in contact with the board for 0.0025 seconds. Determine the average acceleration of the puck over the interval. average acceleration= change in

10. ## Chemistry

I Have Two Questions 1)How would you calculate the number of nanometers in 8.1 cm? 2)What is the equivalent of 0.35 lb in grams? You need to learn to do deimensional analysis. It's easy. 0.35 lb to grams We know there are 453.6 g in a lb. We take the given

11. ## math

A bag contains red, blue, and orange marbles. If the probability of randomly selecting a red marble is 0.4 and the probability of selecting a red or blue marble is 0.9 what is the probability of selecting a red or orange marble? In my opinion, the easiest

12. ## Algebra

I'm suppose to write an equation with the following information: Line passes through (2,-6) and is parallel to x=8 I know i must use the slope point form the problem is that since x=8 I don not know which is the slope. Please help me :) The line for x=8 is

13. ## Biology

why does proline stain yellow in ninhydrin?

14. ## Physics/Science #2

A rock is thrown verticaly upward from ground level at time t = 0. At t = 1.65 s it passes the top of a tall tower, and 0.95 s later it reaches its maximum height. What is the height of the tower? height = _______ m First, find the initial velocity from

15. ## Chemistry (Check)

Are most factors unity? Is this True or false I'm thinkin true.. The actual size of a measurement multiplied by a conversion factor remains the same, beacause the measurement being converted is multiplied by unity. okay

16. ## History-Blood Diamonds

i cant find anything on this subject...i have to write a history report and it would help if i have a timeline on blood diamonds. well i've been searching on the web for 'the history of blood diamonds' but all i seem to find is the movie, which is what i

17. ## MATH

Some students pass around a box of candy containing 25 pieces.Kendra took the first piece of candy. Each child takes a piece of candy as the box is passed around. Kendra also gets the last piece and may have more than the first piece. How many children are

18. ## science

How long is day and how long is night? PLEASE HELP ME! thanks PLEASE HELP ME!! We usually think, in the United States, of a day being 12 hours and night being 12 hours; however, as you well know, the actual hours of daylight and night time change daily.

19. ## math

How many 22 cenimeter oieces of string can be cut from a 4.2 meter piece of string? How many centimeters are left over? Convert 4.2meters into centimeters, then try dividing 22 centimeters into that number how here's a conversion chart that should help

20. ## First Amendment Question

Which would be permitted under the establishment clause of the First Amendemnt? 1. A public elementary school inviting a local pastor to visit each morning to open the day with a prayer in the gym for any students who wish to attend. 2. Public high school

21. ## conversions check my answers

I need these checked, thanks! 1. a) 8.95cm to meters= 0.0985m b) 1298.4g to kilograms = 1.3kg c) 129cm to millimeters = 1290mm d) 2452 mL to liters = 2.452L 2) A cyclist rides at an average speeed of 24mi/h. If she wants to bike 15km, how long (in hours)

22. ## new description for jiskha.com

The new meta description for jiskha.com is: Students get free homework help from teachers and experts on message boards and chat rooms. Website also features educational articles in math, science, social studies and literature. It will probably take Google

23. ## Math

Some students pass around a box of candy containing 25 pieces.Kendra took the first piece of candy. Each child takes a piece of candy as the box is passed around. Bob also gets the last piece and may have more than the first piece. How many children are

24. ## Physics/Science

A startled armadillo leaps upward rising 0.547 m in the first 0.202 s. (a) What is its initial speed as it leaves the ground? _____m/s (b) What is its speed at the height of 0.547 m? _____m/s (c) How much higher does it go? _____m Use distance vs time:

25. ## social studies

How many people work at Kennedy Space Center? http://www.nasa.gov/centers/kennedy/about/biographies/bio-current.html You can count the number of people listed here, but I'll bet this is not the entire employment list. You might also click on FirstGov and

26. ## Compiler Construction

Given the following 3-address code 1: a = 1 2: b = 2 3: c = a + b 4: d = c - a 5: if( d < 20 ) goto 11 6: d = b * d 7: if( d > 20 ) goto 11 8: d = a + b 9: e = e + 1 10: goto 6 11: b = a + b 12: e = c - a 13: if( e < d ) goto 3 14: a = b * d 15: b = a –

27. ## english

i have a project for english that has to do with minoritys and i have penelope cruz....on the rubric it says celebrity status...can someone please tell me what that is or what penelope's is...it would help a ton!!! Penelope Cruz is a Latina actress. what

28. ## social studies

What where the people in north africa like, what was their surroundings like Since this is not my area of expertise, I searched Google under the key words "North Africa people" to get these possible sources: http://www.africaguide.com/culture/index.htm

29. ## Spanish

Hello, can someone please proofread my spanish? Thank you. ENGLISH: To whom it may concern: Hello, my name is JYD. I am an interviewer for Time Magazine. Fidel Castro has been away from the media for a long time now, and many are wondering if he is still

30. ## Math

What is the unit rate? A racing car travels 180 miles in 1.5 hours. 5 i need it as a fraction like: 180mi/1.5 hrs thats not the unit rate i think it is The units here will be miles per hour. (Another valid yet rare answer is hours per mile.)

31. ## pre-calc

If f(x)= x-B/x-A, f(2)=0, and f(1) is undefined, what are the calues of A and B? my teacher is picky and requires all work to be shown. can you explain how you got this answer? A is 1 from the f(1) is zero. The denominator has to be zero. B is two, since A

32. ## Econ

The demand for widgets (QX) is given by the following equation: QX = 425-PX¡V1.5PW¡V1.25PG+0.8PY+0.1 M where QX= number of units of widgets sold per week PX = the price of widgets = 400 PW = the price of woozles = 50 PG = the price of gadgets = 80 PY =

33. ## unknown

if i am 3 times as old as my sister and last year i was 4 times as old as her how old am i now and how old is she well how old is your sister You are 9 and she is 3 (3x3=9) Last year you were 8 and she was 2 (2x4=8) your sister is 3 and you are 9 let x =

34. ## math

Find the percent of the increase or decrease. Original:4500 New:4005 the percent is lower which is 40% Set it up in words: 4005 is what percent of 4500? Now make the words into numbers: 4005=4500x x=0.89 89% decrease. If you don't get it please let me

35. ## AP US History

Was the War of 1812 defensive or aggressive on America's part? I feel like it was aggressive because we attacked first, but maybe it was defensive because we were defending ourselves against impressment. Someone please clarify this for me, thanks. You're

36. ## Social Studies

What are some of the coolest facts about Washington D. C.? Please answer my question soon! its not in washington! Please see the answer I posted to your first question. Although it is our capitol, it is not one of the states

37. ## math

I need help differentiating this question: 3e^-4x that's three e to the power of negative 4x. when you differentiate, you get: -12e^-4x thanks, but how come it's not -12e^-4x-1, or do i just not minus a one when the power is a co-efficient? Remember, the

38. ## For Dr.Bob222

I posted a question under First Amendment, would you look at the question and give your opinion? I'm not finding it Carrie. I Posted the question under first amendment question I will pass since government is not my field.

39. ## accounting

A firm has in the past provided for bad debts on the basis of 10% of yr end trade receivables.The provision brought forward (brought down) on 1 Jan 2006 was €520 During the yr ended 31 December 2006 the bad debts written off amounted to €620 and the

40. ## Chemistry

Income tax for some states is computed by taking 3% of the excess income over \$3,000 plus 1% of the first \$3,000. How much tax is charged on a income of \$12,000? 12,000 1 percent on first 3000 3 percent of (12,000 - 3000) I'm trying to figure the

41. ## Physics

When a -ively charged object comes in contact with a +ively charged object, they dischage. The electrons flow from the -ive side to the +ive side until the charges on both objects are equal What happens when a negatively charged object and a postively

42. ## math,question

okay i really don't understand this problem. It says: Prove the point-slope equation property which is : Point-slope equation(an nonvertical line with slope m and containing a point (X1,Y1) has the point-slope equation of y-y1=m(x-x1). Now show that any

43. ## angles

whats 25-2 +180 and 30-2 +180 whats 25-2+180 203 for the first one 208 for the second one How do i find the correct angle?

44. ## Due 2morrow

Some students pass around a box of candy containing 25 pieces.Kendra took the first piece of candy. Each child takes a piece of candy as the box is passed around. Bob also gets the last piece and may have more than the first piece. How many children are

45. ## art

Artistic in the Baroque, Rococo, Neoclassicism, and Romanticism eras: with social conditions Since this is not my area of expertise, I searched Google under the key words "artistic Baroque 'social conditions'" to get these possible sources: (Broken Link

i want to know the assignment format and style, how to start. Thank you for using the Jiskha Homework Help Forum. Could you please make your query clearer? Hopefully you want to know something about copyrights. In that case, the following site should help

47. ## Markrting

What are three lessons learned relative to the importance and effectiveness of various pricing strategies? What are the three lessons learned relative to the importance and effectiveness of distribution channel options?

48. ## scince

how are ice cubes made http://home.howstuffworks.com/icemaker.htm my science teacher, mr.Abothu, has set us homework on input variables and output variables but we have no clue what they are and its got to be in tomorrow! please help!!! regards lauren

49. ## AP US History

What was Thomas Jefferson's party called against Hamilton's Federalist party? Check this site for your answer. http://www.pbs.org/wgbh/amex/duel/peopleevents/pande05.html

50. ## Chem(again)

Can someone tell me the equation for converting Celcius temperatures to Kelvin temperatures? Thanks K = 273.15 + C

51. ## Math

If you have 2coins to make 30cents but you can not use a nickel? That's impossible without a nickel. Unless, if you are allowed to make more than 30 cents, then you could use 2 quarters, but if you mean 2 coins=30 cents that can't be done. That's

52. ## chem

what does coefficients in equations mean, in chemical terms? 2NaCl means we have two molecules or 2 mols of NaCl. Most texts caution us not to use molecules but to stick with the latter part of the definition (moles); however, I don't have any problem with

53. ## math

n-31/2=12 what is 2+2 do you all know any website that help you with your homework Yes. This website has many teachers who will help you with your homework. Please post your question. 2 = 1+1 2 + 2 = (1+1) + (1+1) = 1 + 1 + 1 + 1 = 4

54. ## chemistry

what are some physical changes? tearing paper, pouring water from one container to another, breaking a stick. This are physical changes because the starting product and the ending product are the same.

55. ## english

boat:store::sail:_____________ (hint) Look at the word "sail"

56. ## Science

Explain why condensatin forms on a glass containing a cold drink. Only so much water vapor can be in the air at any temperature, and at cooler temps the air holds less. Air is very cold near the surface of the glass. hi plz help me i whant some information

57. ## French

A la gare ~Quelqu'un _________ l'arrivée d'un train à travers le ___________ . What words would fit into those spaces? Thanks Thank you for using the Jiskha Homework Help Forum. First of all, what do you see? "Someone..........the arrival of a train

58. ## SCIENCE HELP!!??

Hi Please any one can help me in my science homework It is Imagine that you were driving in a car and it was raining, what would be the froces acting around the car and what would the electrical charges bee around the car, on the base and in the sky. I

59. ## music

has anyone ever heard of Alexz Johnson? she is a canadian atrist who stars on the CTVshow instant star. Thank you for using the Jiskha Homework Help Forum. Here is one site: http://en.wikipedia.org/wiki/Alexz_Johnson P.S. And here is her Web:

60. ## Chem-Temperature and Volume Relationships

What condition must be true when conducting temperature volume measurement? Why would a rubber balloon be a poor system for this kind of expirement? The general equation is (P1V1)/T1 = (P2V2)/T2 If V and T are being studied, then P must be held constant.

61. ## Biology

How many types of amino acids are there in milk? I believe there are either 8 or 9, all of which are essential to humans because humans cannot create these proteins.

62. ## Belinda, Math

I aked the instructor about that problem that looked like this: (w-(1)/(4))^2 and he said that what i thought was right. which was : the answer:w^2-(1)/(2)w+(1)/(6) Yes, that's right. I just thought your way of getting the answer was more complicated than

63. ## math, correction

the equation is and directions are: graph x-y=-2 so then the equation would really be: y=-x+2 and from here i would do the table to plot the points. Close. y=x+2, not -x+2. Then, yes, plot the points. so your saying that the equation that i have to graph

64. ## Social Studies

What are some really cool facts about Washongton D. C.? This site has a lot of cool facts about Washington, D.C. http://www.infoplease.com/ipa/A0108620.html

65. ## science

230 volts, 120 watts what fuses will i need a 3A, 5A, 13A please answer Power= V*I so currnt= power/V in this case 120/230, in this case less than an ampere. So use the 3A.

66. ## Math

You timed yourself typing a book report. It took you 28.8 minutes and the report was 4.5 pages long. Hoh long would it take you type one page? a. Write an expression to find the amount of time it will take to type one pate. b. Tvaluate the expression. How

67. ## science

PLZ u7nscramble this: yunadbro regidansp Is this really homework? I don't see the academic value in unscrambling words, other than possibly testing your IQ. The first word is boundary. The second word I'm not sure. Still staring at it. Ahh, it's spreading.

68. ## math

A gymnast received the following scores from 5 judges in the state competition. floor:8.8, 9.3, 8.1, 8.9, 9.5 bars: 7.6, 8.2, 8.5, 8.2, 8.9 vault: 9.5, 8.9, 9.4, 9.5, 9.0 beam: 8.4, 8.5, 8.4, 7.9, 8.7 Her score for each event is found by computing the

what is the importance of speaking your mind? It depends on your mindset. Some have power needs, some have attention needs, some have emotional needs to hear themselves, and some have mouths that just seem to be connected to a Duracell battery. One can not

70. ## HELP ME!!

What qualities of an oral presentation are most important to you as an audience member? Explain your answer (Broken Link Removed) http://www.tau.ac.il/~smiriam/mugbar/criteria2.htm http://www.ncsu.edu/midlink/rub.pres.html Please note that we don't do

71. ## Physics

A hot-air balloon is rising upward with a constant speed of 2.21 m/s. When the balloon is 2.25 m above the ground, the balloonist accidentally drops a compass over the side of the balloon. How much time elapses before the compass hits the ground?

72. ## Math -

What would the interval be for a bar graph with the following data: 104,135,124,144,122 Highest number minus lowest number 144-104 = 40

73. ## Computer Graphics

Q. Determine the equation for a cubic spline segment passing through two end points A (0, 5) and B (10, 20), having a slope of 2 and a curvature of -0.5 at A. Equation for cubic spline is:

74. ## Computer Graphics

Q. Determine the equation for a cubic spline segment passing through two end points A (0, 5) and B (10, 20), having a slope of 2 and a curvature of -0.5 at A. Equation for cubic spline is: y=a0+a1.x+a2.x^2+a3.x^3 Slope equation is:y’=dy/dx=a1+

75. ## Social Studies

Whst are some really cool places in Washington D. C.? I loved the museum of Natural History, the Aviation museum, National Art Gallery, and the zoo!!! There are soooo many interesting places there you will have to go back several times to see it all. This

76. ## English!

I have two questions that I'm not quite sure on. In the sentence 'To Franklin, publishing was a challenging and rewarding career', which word is a gerund? a.publishing b.challenging c. rewarding d. career In the sentence 'Benjamin Franklin enjoyed

77. ## gurublue

can u help me find sites that have info on blood diamonds? (Broken Link Removed) (Broken Link Removed) thank you very much

78. ## World History

Why were christian beliefs so appealing thanks for your help ♥ Christian beliefs are appealing because they promise salvation for sinners, a God that loves them, and a good life in heaven.

79. ## science

how might an industrial chemist increase production of their plant with knowledge of reaction rate. please explain.

80. ## yes or no question

hi i have to do a project where i have to find media bias between two articles for government. and i was wondering if it is okay if i could just post little pieces of those two articles and ask for help. when i read the two articles, it doesn't seem like

81. ## social studies

This is interesting reading, from an author along the same lines: http://www.nicolagriffith.com/anarchive-homework.htm When did the first settlers arrive in eastern texas for what reason We are not going to do your homework for you.

82. ## science

whatis mass? bbb mass From the web. "Mass is a property of physical objects that, roughly speaking, measures the amount of matter they contain. It is a central concept of classical mechanics and related subjects. en.wikipedia.org/wiki/Mass" i am having

83. ## math,question

on a graph if a line is running verticle right on 5, then the slope of it would be x=5 yes thank you so much for all your help you are awsome.

84. ## math,help

this other one how can i actually prove it if this is the equation to use. the problem states: Prove that if a line has slope ma nd y-intercept b, then an equation of th eline is y=mx+b. then it says (Hint: use the point-slope equation theorem) I've looked

85. ## math

n+1.5=12 n + 1.5 = 12 n = 12 - 1.5 What do you think n equals?

87. ## Religion,help

What events and figures have shaped the development of Islam in the United States? i really don't know how to answer this question or even what points to hit. I know that one even was the Iraqi war but i don't know what else i can put because i don't want

88. ## social studies

who authorized a group of french merchants to create colonies in north america You posted over twenty of these homework questions. What do you think are the answers?

5+5=10 yes

90. ## Earth Science

What two things are used for determining how a rock was formed??

If Sally gave a survey with five colors listed and ask each person who takes the survey to pick one color. She assumes that the results if given to 24 persons the results would be 1/2 blue, 1/12 red, 1/8 blue, 1/4 green, and 1/24 orange. What number of

92. ## Help me!

Anyone know what is 12th powerful words to find a photo? Letitia, please let us know what photo you are looking for and we may be able to help you find it.

93. ## articles govenment

This is from CNN Bush did get support from some Republicans. "The president consulted with the best military minds ... and came up with a new strategy, and I think it deserves a chance," said Sen. John Cornyn, R-Texas. "This is our last chance. The