Questions Asked on
December 8, 2009

  1. 12th Physics

    A 55 kg ice skater is at rest on a flat skating rink. A 198 N horizontal forceis needed to set the skater in motion.However, after the skater is inmotion, a horizontal force of 175 N keeps the skater moving at a constantvelocity. Find the coefficients of

    asked by Melissa
  2. Physics 221

    A 20g particle is moving to the left at 30 m/s. How much net work must be done on the particle to cause it to move to the right at 30 m/s. The answer is 0J of work, and i understand the method of equations, but i don't understand the logic behind it.

    asked by K
  3. Chemistry

    The titration of 25.0 mL of an unknown concentration H2SO4 solution requires 83.6 mL of 0.12 M LiOH solution. What is the concentration of the H2SO4 solution (in M)? A) 0.40 M B) 0.10 M C) 0.20 M D) 0.25 M E) 0.36 M The answer is supposedly C, but I got A.

    asked by Charlie
  4. physics please help :)

    a.the gravitational force between 2 electrons 1.00m apart is 5.42x10^-71 N. Find the mass of an electron. b.2 spherical balls are placed so their centres are 2.6m apart. The force between the balls is 2.75x10^-12N. What is the mass of each ball if one ball

    asked by Anonymous
  5. physics

    A sealed tank containing seawater to a height of 11.0 m also contains air above the water at a gauge pressure of 3.00 atm. Water flows out from the bottom though a small hole. Calculate the speed with which the water comes out of the tank. I believe this

    asked by Sarah
  6. Literature

    'What is the tone of the poem El Olvido? Describe the speaker's attitude towards the subject and support your description by commenting on word choice and rhythm.' This is what i got: The tone of the poem 'El Olvido' is very solemn as the speaker describes

    asked by mysterychicken
  7. AP U.S. HIstory

    What bias did the FOunding Fathers demonstrate in their procedure for electing senators?

    asked by Ashley
  8. chemsitry

    hi I need help with this question please. 1. consider the decomposition of N2O5 in carbon tetrachloride(ccl4) at 45c 2N2O5(soln)-> 4NO2(g)+ O2(g) The reacion is first order in N2O5, with the specific rate constant 6.08*10^-4 per second.calculate the

    asked by hrithik
  9. phys.

    the shortest and longest wavelength series in singly ionized helium is 22.8nm and 30.4nm . Are they right? How many orders we can see between the angles range observations 30 and 90 in the Balmer's series?

    asked by bun
  10. Literature

    'What is the tone of the poem El Olvido? Describe the speaker's attitude towards the subject and support your description by commenting on word choice and rhythm.' The tone of the poem ‘El Olvido’ is intense as a mother prays for her child who has

    asked by mysterychicken
  11. physics

    Given: latent heat of fusion of water 3.33x10^5 J/kg. A 147 g cube of ice at 0 degress C is dropped into 1.3 kg of water that was originally at 79 degrees C. What is the final temperature of the water after the ice melts.

    asked by Ericka
  12. compose

    if 3.85 L of carbon monoxide was collected over water at 25 degrees celsius and 689 mmHg how many grams of formic acid were consumed?

    asked by j
  13. Math

    Three neighbors are sharing a rectangular strip of land fir a garden. They divide the land into 24 equal-sized pieces. What fraction of the land does each person get if they share it equally? Write the answer in more than one way

    asked by Nick
  14. math

    what did the ape think of the grape's house?

    asked by Anonymous
  15. Chemistry

    Which of the following is a dipole? KrF2, NH2Cl, CH2Br2, and SCN^- I'm pretty sure that KrF2 and NH2Cl are not dipoles, but why? also, what makes something be a dipole?

    asked by Meg
  16. Science

    Where is this earthquake's epicenter? A)Tokyo, Japan B)Manila, Philippines C)Beijing, China D)Hong Kong, China

    asked by george
  17. Phys sci

    Which one of the following frequency can set the string into resonant vibration? If a guitar string has a fundamental frequency of 500Hz a)250Hz b)750Hz c)1500Hz d)1750Hz

    asked by Joanna
  18. math

    Reduce the fraction to lowest terms. Do not use spaces in answer. 38x^2yz^2 __________= -19xy^2z^3

    asked by yelena
  19. Math

    Felicia traveled 7 kilometers to school 1/10 of that time she walked and 9/10 of the distance she rode a bus. A. How far did Felicia walk? B. How fare did she ride?

    asked by Kris
  20. Physics

    The "hang time" of a punt is measured to be 4.00 s. If the ball was kicked at an angle of 53.0° above the horizontal and was caught at the same level from which it was kicked, what was its initial speed? (Neglect air resistance.)

    asked by Robert C
  21. social studies

    How did Charlemagne gain the title Emperor of the Roman People from Pope Leo III? A. He inherited it from his father. B. The pope saw his concern for his people in the way he governed. C. He built a very large cathedral in Aachen and earned the pope’s

    asked by tim
  22. physics

    When an open-faced boat has a mass of 5750kg, including its cargo and passengers, it floats with the water just up to the side on a freshwater lake. (a)What is the volume of this boat? (b) The captain decides that it is too dangerous and wants to throw

    asked by Sarah
  23. geometry

    the bases of a trapezoid have measures of 16 and 8. find the measure of the median.

    asked by kt
  24. Statistics

    In a distribution of 400 response times with a mean of 7 minutes and a standard deviation of 2 minutes, the maximum number of response times greater than 13 minutes would be about: A. 40 B. 100 C. 75 D. 90

    asked by Adria
  25. Chemistry

    How would i find the hybridization of the central atom in NO3^- and CH2Br2? Also, in general how would I find the hybridization of something, and what is hybridization (I'm very lost)?

    asked by Sarah
  26. Economics

    How does a price ceiling undermine the rationing function of market-determined prices? How could rationing coupons insure that consumers with the highest values get the limited amount of a good supplied when government price ceilings create shortages?

    asked by Lauren
  27. Physics

    Babe Didrikson holds the world record for the longest baseball throw (296 ft) by a woman. For the following questions, assume that a ball is thrown at an angle of 45.0° above the horizontal, that it travels a horizontal distance of 280 ft, and is caught

    asked by Robert C
  28. Math

    How do you write Rotation, Translation, and Rotational Symmetry in math. For example, reflection is written : a reflection in line l is indicated by ML.

    asked by Jackie
  29. Math

    Juan bought 2 tires for his bike. His bike cost $65. How much did he spend on the 2 tires?

    asked by Joey
  30. Business Math

    A furniture store sells recliners at a 70% mark-up (based on price). If the recliner costs the store $240, what price will they charge? Formula: %Markup on cost=%markup on selling price/100% - % markup on selling price x = 70%/100%-70% x = 70%/30% x =

    asked by Amelia
  31. Math -- 6th Grade

    The sum of two decimal numbers is 5.3. Their difference is 1.7, and their product is 6.3. What are the two numbers? Does the product have anything to do with getting the answers?

    asked by David
  32. Math

    This is the question given: "Peanuts sell for $5/kg and cashews for $20/kg. Mary wants to sell a mixture of peanuts and cashews for $12/kg. How many kilograms of peanuts and cashews would Mary have to mix in order to make 30kg of the $12/kg mixture?" This

    asked by Emily
  33. geometry proofs

    given: line QO congruent to QN, line NM CONGRUENT TO OP Prove: triangle QMP IS ISOCELES 5. TRIANGLE QNM CONGRUENT TO TRIANGLE QOP WHAT IS THE REASON 7. TRIANGLE QMP IS ISOCELES WHAT IS THE REASON

    asked by haley
  34. Misc

    I need to know the three most dangerous things that can happen on a socializing website such as facebook, for teenagers. Thanks -MC

    asked by mysterychicken
  35. English 11 (Novel Study No country for old men)

    Im doing an essay on the lack of redemption shown in the novel No country for old men. I needs 1000-1200 words and i got about 7 paragraphs these include -Thesis -Body paragraph 1(the corruption of money) -Body paragraph 2(the curruption of youth) -Body

    asked by Pengu
  36. Physics

    if the intensity of a mosquito's buzzing is 9.3 x 10^-8 W/m^2 at a distance of 0.21 m, how much sound power does that mosquito generate?

    asked by Brielle
  37. Social Studies

    Why do most Canadians live near the U.S border? (two reasons) One of my reasons were: to trade. (I remember that the teacher was saying that)

    asked by Anonymous
  38. Spelling

    brother mother fly

    asked by Nicole
  39. Math

    If exactly three darts hit this target, how many different scores are possible? darts circle 1 3 5

    asked by afo
  40. math

    suppose you copy a figure on a copier using the given size factor. find the scale factor from the original figure to the copy in decimal form. a)200%, b)50%, c)150%, d)125%, e)75%, f)25%

    asked by dillan
  41. algebra

    Reduce the fraction to lowest terms. 38x^2yz^2 _________= -19xy^2z^3

    asked by yelena
  42. Science

    Any help on this I have to go to bed!!!! Help!!!! I can't find these answers anywhere and I don't have a science text book. 1. A tough outer covering that lies right outside the cel membrane. 2. A twisted membrane with portions that break off to form

    asked by Eryns
  43. geometry

    Lines a, b and, c are perpendicular bisectors of angle pqr and meet at a find x, y, nd z

    asked by latisha
  44. calculus

    find the derivative of f(x)=cot(3x)csc^2(3x)

    asked by jackie
  45. math

    Reduce the fraction to lowest terms. Do not use spaces in answer. -5jk ________= 35j^2k^2

    asked by yelena
  46. physics

    A bomb is dropped from a altitude of 1600 meters.How long will it take for the bomb to hit the ground?

    asked by ann
  47. human services

    What have been the most significant changes in human services over the past 50 years? How has society’s responsibility to individual needs changed in the last 10 years? What do you think the role of human service workers will be in the future?

    asked by Ty
  48. Calculus

    A fully plane has a constant acceleration while moving down a runaway. the plane requires .7 mile of runaway and a speed of 160 miles per hour in order to lift off. what is the planes accelearation? i need the formula cause the one i have doesnt work cause

    asked by Nancy
  49. math

    there are 40 people at a picnic there are 4 more children than adults how many of each are there

    asked by christian
  50. history

    I know that during the McCarthy Era, people accused as being communists were asked to give names of other communists. I was wondering if it was true that if accused people gave names then they would be let off the hook? Thanks.

    asked by Rachel
  51. Calculus

    Find the area enclosed between f(x)=0.4x^2+5 and g(x)=x From x=-5 to x=8

    asked by Salman
  52. math

    equations....4 pennies=4pennies;multiply both sides by 7

    asked by andrew
  53. com150

    topic outline and working references list I am trying to references templates but i don't know how.

    asked by kase
  54. math

    Let f(x)=x+2 Ix-3I and g(x)=3x-1 Find all solutions to the equation f(g(x))=-4x So this is what I did... (3x-1)+2 I(3x-1)-3I=-4x (3x-1)+2 I3x-4I=-4x This is where I got stuck. What do I do with the absolute value? and this part?(3x-1)+2=3x+1 ??

    asked by SC
  55. college comprehensive grammar checkpoint

    Did you know a famous animal-rights activist has criticized horseracing because of the dangers involved? 1b. Did you know a famous animal-rights activist have criticized horseracing because of the dangers involved? Subject-verb agreement 2a. Peer editing

    asked by Casey
  56. math 6 grade

    The Pack-U-Up Moving Company uses several different size boxes,but the boxes all have the same meaurements on the top andbottom so they'll stack neatly on top of one another.The only differences between the boxes is their heights: some are three feet high,

    asked by fko
  57. 6th grade Math

    The sum of two decimal numbers is 3.9. Their difference is 0.9, and their product is 3.6. What are the two numbers?

    asked by Anonymous
  58. Organic Chemistry

    Carbocation: In which reaction mechanism is it an intermediate?

    asked by Cerise
  59. STATS

    A student's grade on an examination was transformed to a z value of 0.67. Therefore, we know that she scored approximately in the top

    asked by Anonymous
  60. Physics

    A golf ball is struck with a five iron on level ground. It lands 85.0 m away 4.60 s later. What was the magnitude and direction of the initial velocity

    asked by Robert C
  61. Statistics

    I'm confused about significance tests. I've tried to look up what it means for the p to be less than the alpha but none of the explanations made sense. I understand that the alpha is the probability of wrongly rejecting the null hypothesis but I'm not sure

    asked by Sam
  62. algebra

    Reduce the fraction to lowest terms. -5jk ________= 35j^2k^2

    asked by yelena
  63. MATH

    Carmen spent 4 hours at the Y on Saturday. Two thirds of that time she spent in the gym. How many hours did she spend in the gym?

    asked by DJ
  64. MATH

    Joe bought 2 dozen eggs at the store. On the way he dropped the eggs and broke 3/4 of them. How many eggs broke?

    asked by DJ
  65. physics FORCE

    if the intensity of a mosquito's buzzing is 9.3 x 10^-8 W/m^2 at a distance of 0.21 m, how much sound power does that mosquito generate?

    asked by brielle
  66. Physics

    if the intensity of a mosquito's buzzing is 9.3 x 10^-8 W/m^2 at a distance of 0.21 m, how much sound power does that mosquito generate?

    asked by Rhyanna
  67. Math

    My cousin Robert was pushed into a pool. The pool was 6 feet Wide and 10 feet deep. The pool had soft walls. How did my Cousin Robert Emerge from the pool? Ans__________ Hint- We do not know if it's filled with water or not. It is a round pool. It is a

    asked by Diana
  68. Ap Chemistry

    I have no idea where to start with this problem: A certain reaction has the following general form: aA -> bB At a particular temperature and (A)o = 2.00(10^-2)M, concentration versus time data were collected for this reaction, and a plot of In(A) versus

    asked by Shawn
  69. Maths

    An Investment Fund manager is required to maximise the return on a portfolio of bonds given the following information: Bond types Projected rate of return Benchmark government 9.1 UK gilts 10.3 Global investment grade (US $) 6.7 Global investment grade

    asked by Sarah
  70. math urgent

    Find the result if the sumn of the roots of y= x^2+3x-5 is added to the product of the roots.

    asked by Anonymous
  71. Management 2

    Which type of lighting is most compatible with computer work? a. fluorescent, b.sunlight from windows, c. task lighting, d. colored lighting?

    asked by Xenia
  72. physics

    Thank you drwls, My problem is a. The lifetime of the levels in a hydrogen atom are of the order 10-E8s. What is the evergy uncertainty of these states? Compare this result with the energy value of the first excited state. b. Find the shortest and the

    asked by bun
  73. thermochemistry college

    does anyone know profesor of green river community college, auburn,wa, sue critchlow ????

    asked by eva
  74. math

    Evaluate the following expression. 7^0

    asked by yelena
  75. AP Chemistry

    I have no idea where to start with this problem: A certain reaction has the following general form: aA -> bB At a particular temperature and (A)o = 2.00(10^-2)M, concentration versus time data were collected for this reaction, and a plot of In(A) versus

    asked by Shawn
  76. Chemistry

    Balance the following in basic solution using the lowest possible integers and give the coefficient of water. MnO4- + C2O42- --> MnO2(s) +CO32-

    asked by Mary
  77. Psychology

    What is social facilitation and how has the definition evolved"

    asked by Justin
  78. math

    44 less than d translated in an algabra expression Would it be: d-44

    asked by Matt 2000
  79. Phenix

    The Harley Davidson motorcycle company, which had a copyright on the word “hog” appiked for exclusive rights to its engine sound. Why would a company want copy rights on two such mundane things?

    asked by miller
  80. statistics

    21. Payne (2001) gave participants a computerized task in which they first see a face and then a picture of either a gun or a tool. The task was to press one button if it was a tool and a different one if it was a gun. Unknown to the participants while

    asked by bren
  81. science

    What is happens to rocks after their elastic limit is passed?

    asked by john
  82. grammar

    trying to Capitalize the proper nouns in the sentence

    asked by Barry
  83. physics

    1. Part (1 of 2) A 5.36 g bullet oving at 681.8 m/s penetrates a tree trunk to a depth of 3.79 cm. a) Use work and energy considerations to find the magnitude of the force that stops the bullet. Answer in units of N. and 2. Part (2 of 2) b) Assuming that

    asked by Ronaldo
  84. Math

    I need help in finding the vertex of a parabola using an equation in this form: Ax^2 + Bx+C I have a test on this tomorrow. For example: 3x^2 +1x - 2 How would I find the vertex in this?

    asked by Clair
  85. arithmetic

    On one of the questions of a recent math test, a student divided by 9 instead of multiplying by nine. This computation gave an answer of 18. What's the correct answer?

    asked by Tom
  86. math

    Reduce the fraction to lowest terms. Do not use spaces in answer. x^3-x^2 ________= x^4

    asked by yelena
  87. math gr 7

    1.9s+6=3.1-s

    asked by Leslie
  88. math

    Paul read 20 pages of a book in 15 minutes. (a) What is Paul’s reading rate of pages per minute? (b) If he continues to read at the same rate, how many pages will he read in 1 hour?

    asked by tasha
  89. chemistry

    what is a simplified way of representing an organic compound by showing only rh carbon carbon bounds

    asked by shelly
  90. literary

    "bundle of services "is example of what literary device

    asked by ann
  91. World culture and the Arts

    The Mesopotamians had a generally pessimistic view of life. How do the arts of their civilization reveal this? Use at least one example to illustrate your points. What other features of this culture does the art reveal?

    asked by stephaine
  92. Math

    The Pack-U-Up Moving Company uses several different size boxes,but the boxes all have the same meaurements on the top andbottom so they'll stack neatly on top of one another.The only differences between the boxes is their heights: some are three feet high,

    asked by fko
  93. physics

    A block of ice at 0°C whose mass initially is m = 12.5 kg slides along a horizontal surface, starting at a speed vo = 4.10 m/s and finally coming to rest after traveling a distance d = 10.07 m. Compute the mass of ice melted as a result of the friction

    asked by AK
  94. Texas History

    What was the mission that served as a halfway mark between Mexico and the eastern settlements? I have no clue and cannot find it in my history book...

    asked by Journi
  95. english

    can't find the verb 'we could have done a better job.' we- subject ???

    asked by christina
  96. Math

    cheryl, rita and four of their friends go to a movie and share equally a 48-ounce bag of popcorn and three 48-inch licorice laces. Find the fraction of popcorn each gets and the fraction of licorice each gets.text

    asked by Nick
  97. algebra

    Evaluate the following expression. 3^-2

    asked by yelena
  98. cjs 220

    what are the methods of judicial selection for federal appellate, state appellate and state trial court judges?

    asked by pinky
  99. probability

    hi! how would you figure out a problem where you are given a probability of success for 12 people and you are trying to find the probability of success for 1 person?

    asked by ali
  100. us history

    In what ways did democracy create a new political culture? How did democracy impact social change?

    asked by nicole
  101. physics

    A rectangular crate of weight W is floating in water with 2/3 of its volume above water. If you now want to push down on it to hold it lower in the water, so that only 1/3 of its volume is above water, the downward force needed to do this is: A. W B. 2W C.

    asked by Sarah
  102. garmma

    She and mom got to the Dock late.

    asked by Barry
  103. algebra

    Part 1: Using the Library, web resources, and/or other materials, find the logarithmic formula that gives the pH of a substance. State what each variable in your equation represents. Find the pH of an acidic substance of your choice. Using this pH, show

    asked by steph
  104. Physics

    A soccer ball is kicked with an initial speed of 12.2 m/s. After 0.497 s it is at its highest point. What was its initial direction of motion?

    asked by Robert C
  105. algebra

    2x-2y=8 what is x/y 0/4 1

    asked by jamilette
  106. Precalculus

    Solve the equation x^3 - 2x + 4 = 0. ==> I know the answer is -2, but I can't seem to remember how to solve these by hand without using a graphing calculator. Any help is greatly appreciated!! :)

    asked by Emily
  107. Science 275

    I need help finding out about noliving asnd living factors that contribute to or affected by water resource problem.

    asked by Ree-Ree
  108. english

    what is the antonym for terrible

    asked by kahlik
  109. Trig

    Find the distance from pi. 7 pi/6. I subtracted 2 pi from this and got -5pi/6. But the correct answer is pi/6. Whwere did this come from?

    asked by Victoria
  110. Math

    Simplify each expression. 1. 2x+8/x^2-16 2. 1+x/x^2+x 3. x^2-12x-28/x^2-14x 4. x^2+7x+10/x^2-4

    asked by Sarah
  111. social studies

    what is the geographic features of the eastern woodlands

    asked by kimberly
  112. Business Math

    A furniture store sells recliners at a 70% mark-up (based on price). If the recliner costs the store $240, what price will they charge?

    asked by Amelia
  113. math

    Wheel’s Bicycle shop advertised a bicycle for 15% off for a savings of $36. The bicycle did not sell so it was offered at a new 20% discount off the sale price. (a) What did the bicycle sell for regularly? (b) What is the amount of the new discount?

    asked by poo
  114. Creative Writing

    What are some plus and minuses of growing up males, and what are some plus and minuses of growng up females? the topic is: who has an easier time growing up; males or females My opinion: I don't think the difference is tremendous, but in most ways boys

    asked by y912f
  115. geometry

    the bases of a trapezoid have measures of 16 and 8. fine the measure of the median.

    asked by kt
  116. algebra

    simplify 2x + 4 / 10x^2 + 24x + 8

    asked by Nelson
  117. college Statistics

    A distribution with a mean of 200 units, a standard deviation of 40 units, a minimum value of 4 units and a maximum value of 245 units is A. Positively skewed B. Negatively skewed C. "Bell-shaped" D. Bi-modal

    asked by Adria
  118. english

    tell me whats wrong with this sentence 'The teacher should have taken more time.' teacher- subject should- helping verb have- helping verb taken- action verb

    asked by christina
  119. Spelling

    Nail Hammer screw

    asked by Nicole
  120. Texas History

    What was the mission that served as a halfway mark between Mexico and the eastern settlements? I have no clue and cannot find it in my history book...

    asked by Journi
  121. Math

    Find the definite integral of the following using a suitable substitution: 1) (x^2)/sqroot(x^3-1)dx 2)xe^(x^2)dx 3)(ln(x))^(7/2)/(x)dx

    asked by Andrew
  122. Math

    Find the definite integral of the following using a suitable substitution: 1) (x^2)/sqroot(x^3-1)dx 2)xe^(x^2)dx 3)(ln(x))^(7/2)/(x)dx

    asked by Andrew
  123. Math

    Solve the inequality. 3(h+5)

    asked by Anonymous
  124. 5th grade

    a friend and I entered an art contest. a blue ribbon is awarded for 1/3 of the pieces you entered in the contest.I won 2 blue ribbons and my friend won 3 ribbons. Explain how this could be.

    asked by quinton
  125. english

    In the fall, the warm ground melts the first layer of snow. in the fall- prep. phrase of snow- " " ground- subject melts- action verb anything else? because i answered this and she said it was wrong

    asked by christina
  126. english

    I need help on passive voice. Is the following sentence passive voice? The results of the aptitude test were told to us by the principal.

    asked by Justin
  127. Chem.

    Why is it not possible to achieve a complete separation of the ethanol from the water in the clarified reaction mixture via simple distillation? I'm not sure about this because I thought the difference between fractional (what was done) and simple

    asked by Chelsea
  128. Math

    Maria is going for a walk. She begins by walking north for 1 km. She then turns and walks east for 22 km, then turns and walk south for 3 km. She walks at a constant 4 km/hr. Express the distance from Maria to her starting point as a multipart function of

    asked by Anonymous
  129. Math

    intergrate(e^5x)/((e^10x)+4)dx

    asked by Salman
  130. Math

    The temperature in a certain cave is a sinusoidal function of time. When you first enter the cave, you set up a thermometer to record the temperature. After 19.5 hours, the temperature in the cave is at its maximum: 35 degrees celsius. The temperature then

    asked by SC
  131. Algebra

    5m -2 = 33 while i know the answer is m=7 therefor making the equation read: 5(7)-2=33 how do I show my work

    asked by JoHanna
  132. psy265

    What are three components of attractiveness? Which of the three is most important to you? Why did you choose this factor? Consider, as you respond to your classmates’ posts, how their responses have had an effect on your views about attractiveness

    asked by trudy
  133. 2nd grade

    does the word ''cartoon'' have long vowel sounds?

    asked by Anonymous
  134. science

    why is it uncommon for noble gases to form chemical bonds?

    asked by Katherine
  135. math

    1 centimeter is what fraction of one meter

    asked by Victoria
  136. grammar

    The dock is on Fish Lane. CAPITALIZE the proper nouns in the sentence.

    asked by Barry
  137. Managerial accounting

    For its fiscal year ending October 31, 2008, Molini Corporation reports the following partial data

    asked by Keshia
  138. algebra

    Don't want the answer just the formula on how to figure this out. two trains are traveling on parallel tracks. Train A is going 40mph and crosses the station at 4:10, Train B is going 60mph and crosses the station at 4:25 when will train B catch up to

    asked by sam
  139. physics

    When a metal pipe (open at both ends) is cut into two pieces, the lowest resonance frequency in one piece is 273 Hz and that for the other is 401 Hz. What resonant frequency would have been produced by the original length of pipe?

    asked by Anonymous
  140. socials

    i am asked to do a project of the english philosophers, what are the major works (with dates) for baron de montesquieu

    asked by Brenda
  141. 5th grade

    how do crystals grow?

    asked by wasu
  142. science

    What are the seven energy levels and tell the maximum number of electrons that can fit in each.

    asked by Abby
  143. Language Arts

    Risk is to chance as forthought is to?

    asked by Alexandra
  144. Bio

    What do insulin injections do for people with diabetes?

    asked by Lena
  145. Italian

    Hello, I am teaching myself Italian from a textbook, Ciao! Sixth edition, but I am getting confused with some of the answers, as the information is lacking in a sound explanation. Does anyone know where I can find the answers to the textbook questions, so

    asked by Rory
  146. Chemistry-please help!

    When sucrose is fermented to produce ethanol why is it not possible to obtain a final solution containing more than 10-15% ethanol? Does this have to do with azeotropes? However, I thought this was possible? I am confused, please help.

    asked by CMM
  147. english

    Who is Willie Lynch 1700

    asked by Rimy
  148. Chemistry-please help!

    When sucrose is fermented to produce ethanol why is it not possible to obtain a final solution containing more than 10-15% ethanol? Does this have to do with azeotropes? However, I thought this was possible? I am confused, please help.

    asked by CMM
  149. Math;Pre-Algebra

    My cousin Robert was pushed into a pool. The pool was 6 feet Wide and 10 feet deep. The pool had soft walls. How did my Cousin Robert Emerge from the pool? Ans__________ Hint- We do not know if it's filled with water or not. It is a round pool. It is a

    asked by Molly
  150. Biology

    I have this chart that states the blood sugar levels of 2 individuals. Why is it important that the two people have the same mass?

    asked by Lena
  151. Literacy development

    What are the connections between good readers and good writers?

    asked by Anonymous
  152. Math

    prove that the cancellation law of multiplication is equivalent in a commutative ring to the assertion that the product of non-zero factors is not zero. Thank you.

    asked by Genius
  153. Jo

    That makes sense but were did you get of 7.9 from. Once I know that I under stand subtracting the period... just don't know were that value came from h t t p : / / w w w . j i s k h a . c o m / d i s p l a y . c g i ? i d = 1 2 6 0 2 4 6 6 3 4

    asked by Jo
  154. math

    Sheryl correctly answered 85% of the questions on her 200-question biology final. Fernando scored a 90% on his 180-question chemistry final. (a) Who answered more questions correctly? (b) Who answered more questions incorrectly?

    asked by student
  155. 11th grade

    Write your own journal entry from the perspective of a member of Bradford's colony. What do you think of these unruly pirates? What shocks you the most about these surly characters? How do the manners of the pirates differ from yours?

    asked by regerrica
  156. Earth Science

    Considering the amount of energy required to produce animal-based foods and goods, should humans change their habits so they consume products closer to the bottom of the food chain because it is more efficient? PLEASE HELP.

    asked by Lori
  157. Math

    Solve the inequality. 3(h+5)

    asked by Anonymous
  158. chemistry

    which type of compound, ionic or covalent would you expect to have a higher boiling point? why?

    asked by shakiela
  159. social studies

    Does use of veto power show weakness in executive branch or undermine relations with congress

    asked by crystal
  160. science-biome

    What is the typical precipitation and tempurature for summer and winter in a Virginia Temperate Forest? What are the characteristics of a plant and animal that is seen regularly in a Virginia Temperate Forest? How do the charecteristics relate to the

    asked by Lori
  161. chemistry

    how might you separate ionic from covalent

    asked by shakiela
  162. math

    When Professor Sum was asked by Mr. Little how many students were in his classes, he answered, “All of them study either languages, physics, or not at all. One-half of them study languages only, one-fourth of them study French, one-seventh of them study

    asked by james
  163. Ethnics

    Should United States government policy favor certain kinds of immigrants? Should citizenship preference be given to the neediest applicants, the most talented, the most oppressed or the richest? Should applicants from certain countries be given priority?

    asked by Lori
  164. language arts

    I need help writing a thesis and outline dor divorced single mothers

    asked by jerae
  165. Psychology

    What is "Acquiring New Behaviors" deal with? It is part of Behavior Modification but that's all I know. It has to deal with positive/negative behavior Could someone explain and give me examples Thanks

    asked by Mike
  166. english

    In the sentence "these pebbles are like hundreds of small wheels." is like an verb if so action or linking?

    asked by christina
  167. chemistry

    explain why the type of bond could determine the volatility of a substance

    asked by shakiela
  168. Math

    i need help

    asked by Diamond
  169. Math

    Find the x and y intercepts of a line that is perpendicular to the line y = -9/8x + 1 and passes through the point (18, -8).

    asked by Chris
  170. adult education

    making copious reference to fanon's text the wretched earth,give as many arguments for anti-colonial violence as you can identify in his essay.evaluate each of the arguments by considering objections against it and see if fanon's argument can be resued

    asked by feyi
  171. Science

    what is the body symmetry of Mollusks'? and what is the body symmetry of Arthropods?

    asked by Uhave
  172. 6th gradeScience

    Help!!!! I can't find these answers anywhere and I don't have a science text book. 1. A tough outer covering that lies right outside the cel membrane. 2. A twisted membrane with portions that break off to form vesicles that tranport materials.

    asked by Eryn
  173. geometry

    Which is the correct ratio of sides for a 30-60-90 triangle

    asked by elaine
  174. english

    'Snow can sometimes threaten the lives of moutain people.' snow- subject can- helping verb sometimes- adv. threaten- action verb of moutain people- prep.

    asked by christina
  175. math

    -220 - 16 x 32

    asked by kim
  176. Biology

    Describe an example of how natural selection influence the evolution of a particular species.

    asked by Rayna
  177. Managerial Economics

    I have an exam in two days. I need an explanation to this question please. MC = 10+5Q derive an equation for total cost

    asked by Special
  178. 7th grade

    if 50 grams equal to 150 calories,how many grams equal to 1,000 calories

    asked by anthony
  179. english

    the dinner tastes good. dinner- subject tastes- action verb

    asked by christina
  180. Science

    one more thing- how are centipedes different from insects, crustaceans, and arachnids?

    asked by Uhave
  181. Math

    Solve for n á = (n-2) * 180 / n = 180 – 360/n

    asked by Rene
  182. HCA230

    List at least two pros and two cons for each of the given patient and caregiver roles.

    asked by Debbie
  183. Math

    The Lappans buy 3 large sandwich wraps to serve at a picnic. 9 people in all will be at the picnic. Show 3 different ways to cut the sandwiches so that each person gets an equal share.

    asked by Nick
  184. Calculus

    Find the concavity and min and max for f(x) = x*sqrt(x^2+36) defined on the interval [-4, 7]?

    asked by Z32
  185. AED 200

    what are 3 social issues kid face outside the classroom and what can the school do to help them overcome these issues?

    asked by Alvin
  186. MATH

    IF JACK AND JILL ARE COMPARING RESULTS OF A MATH TEST AND jACK HAD 40 CORRECT ANSWERS AND JILL HAD 50 CORRECT ANS AND THERE WERE 32 QUESTIONS THEY BOTH GOT RIGHT AND 6 THEY BOTH GOT WRONG. HOW DO I FIND THE NUMBER OF QUESTIONS ON THE TEST?

    asked by Janice
  187. Math

    Laurie expects to make $100,000 in 2007. Her social security tax rate is 6.20% up to the wage base, Medicare is 1.45%. How much FICA is Laurie expected to pay for the year?

    asked by Alice
  188. Accounting

    Is it ethical to lengthen asset lives to reduce depreciation expense using the straight line method? Also, is this against accounting regulations?

    asked by Lisa
  189. music

    5 ways to change a melody to an arrangement

    asked by tom
  190. Literacy development

    What role does spelling have in an effective reading program? How can spelling best be taught? Should schools implement a formal spelling program?

    asked by Anonymous
  191. Math

    Mario broke a pane of glass in a window.The opening measured 7 and 1/4 inches by 9 and 1/2 in.At the hardware store,they sold him a pane of glass that was 7 and 1/4 inches by 9 and 1/2 inches to the nearest 1/4 inches.Can Mario be sure the glass will fit

    asked by Saiyda
  192. science

    which electrons in an atom make chemical bonds? why

    asked by Katherine
  193. science

    how can the periodic table help you determine the number of valence electrons?

    asked by Katherine
  194. Science

    With today's advanced technology, scientists are able to predict when an earthquake will occur A)true B)false

    asked by george
  195. English

    how did sir gawain & the green knight convey 2 senses of supernatural?

    asked by Lay
  196. 4th grade

    Why do you think Hopi indians may not have wanted to be converted to Christianity?

    asked by Mahima
  197. Geography

    Natural resources not found in Arizona.

    asked by Mahima
  198. 5th grade math

    how do change a percentage toa degees

    asked by lola
  199. Algebra 2

    I have to write a paper on Pascal's Theorum? What are some practical applications in the real world????

    asked by Lisa
  200. sci275

    how can the government be involved in conservation efforts?

    asked by dan