Questions Asked on
April 20, 2010

  1. Gen chemistry

    What is the hydronium ion concentration of an acid rain sample that has a pH of 3.45?

    asked by asasa
  2. Physics

    A diver can reduce her moment of inertia by a factor of about 3.5 when changing from a straight position to a tuck position. If she makes two rotations in 1.5s when in the tuck position, what is her rotational speed (rot/s) when in the straight position?

    asked by Bella
  3. Calculus

    If a ball is thrown vertically upward from the roof of 32 foot building with a velocity of 112 ft/sec, its height after t seconds is s(t)=32+112t–16t2 . What is the maximum height the ball reaches?What is the velocity of the ball when it hits the ground

    asked by Jery
  4. Chemistry

    What is the O-C-N bond angle in OCN-? Why is the answer 180 degrees?

    asked by Danielle
  5. Chemistry

    When HCl(aq) is exactly neutralized by NaOH(aq), the hydrogen ion concentration in the resulting mixture is a. always equal than the concentration of the hydroxide ions b.sometimes greater and sometimes less than the concentration of the hydroxide ion c.

    asked by Julia
  6. Chemistry

    Use VSEPR theory to predict the molecular geometry around either carbon atom in acetylene, C2H2. The Answer is linear. How do you figure out the answer is linear? I know you draw the lewis structure but when I drew it I thought the answer would be

    asked by Danielle
  7. Math

    Why did King Kong eat a truck?

    asked by Di
  8. chemistry

    Assuming that 1 gram of aspirin dissolves in 450 ml of water at 10°C, how much aspirin would be lost in 40 ml of water added to the reaction mixture if the mixture were at 10 °C during filtration?

    asked by bobby
  9. sew

    6. You're repairing an armhole seam in a turtleneck used primarily for skiing. The stitching has come loose because of the extra arm movement. What type of hand stitch do you use? A. Backstitch B. Slipstitch C. Running stitch D. Blind stitch 7. If your

    asked by izzy
  10. Chemistry

    List the amino acid side chains that can accept H+ and those that can donate H+ during enzyme catalyzed reactions. I have lysine, arginine, and histidine as acceptors and serine, threonine, and tyrosine as donators. Could someone just tell me if those are

    asked by Holly
  11. 6th grade math

    7=2-5m; m my answer key says -1 but I don't know why it would be that. Can you explain?

    asked by Xavier
  12. geometry

    Write the converse of this statement. If two angles are both obtuse, the two angles are equal. Converse: i don't get this please explain

    asked by Anonymous
  13. Finance

    You are considering two equally risky annuities, each of which pays $5,000 per year for 10 years. Investment ORD is an ordinary (or deferred) annuity, while Investment DUE is an annuity due. Which of the following statements is CORRECT?

    asked by meakie
  14. statistics

    we developed a 95% z confidence interval for the mean BMI of women aged 20 to 29 years, based on a national random sample of 654 such women. we assumed there that the population standard deviation was known to be 7.5. in fact the sample data had mean BMI

    asked by steven
  15. chemistry

    What volume of .200M NaOH will be required to react completely with 32 mL of .15M HNO3

    asked by joe
  16. Calculus

    Solve for x where 12^x = (4)8^2x

    asked by Ann
  17. english

    The events of the plot are designed to reveal the author's point of view. arouse and satisfy the reader's curiosity. portray the personality of the main character. distract the reader from guessing the ending.

    asked by ballamoney1
  18. chemistry

    Calculate enthalpy change of reaction for the combustion of gaseous ethanol. C2H5OH + 3O2 >> CO2 + 3H2O. Using standard molar enthalpies of formation. C2H5OH -235.3 ( it's negative sign) CO2 -393.5 H2O -241.8 (1) Calculate the enthalpy change of reaction

    asked by Alex
  19. Psychology

    what are four social structure factors that contribute to family problems

    asked by Ronda
  20. French Conjugation

    How do you conjugate tenir and jeter? and what would the passe compose be? Thanks!

    asked by Skye
  21. chemistry

    How many moles are in 1,000,000,000 molecules of H2O2?

    asked by sonisha
  22. Math

    An article (N. Hellmich. "'Supermarket Guru' Has a Simple Mantra,” USA Today, June 19, 2002, p. 70) claimed that the typical super market trip takes a mean of 22 minutes. Suppose that in an effort to test this claim, you select a sample of 50 shoppers at

    asked by Statistics baby
  23. Chemistry

    Help-I'm really confused- If you have an equation where H is positive + OH negative and reaction arrows go both ways-with H2O as product, what type of reaction is this and why- either neutralization,hydrolysis,decomposition or esterification Thank you very

    asked by Celia
  24. chemistry

    What is the Lewis Dot Diagram For Castor Oil?

    asked by Kim
  25. Trigonometry

    Verify the identity. sin2x/cosx + sinx = 2sinx Solve for all values of x: 6cos2x-7cosx-3=0 If f(x)=cos1/2x-sin2x find the value of f(pi)

    asked by .
  26. sew

    6. You plan to attach a flat 1/2-in. button to a garment. The size of the buttonhole should be A. 1/2 in. B. 5/8 in. C. 1 in. D. 3/8 in. 7. You're sewing a child's nylon jacket. You notice the fabric frays easily. Which would be your best buttonhole

    asked by izzy
  27. geometry

    determine whether each pair of figures is similar

    asked by lexandria
  28. english

    how do i cite Stephen Kings online essay "Why We Crave Horror Movies"

    asked by brice
  29. math

    One card is selected at random from an ordinary set of 52 cards. Find the probability of each of the following events: d. A jack is not drawn would the answer be:48/52 since you subtract 4 from 52 for the four jacks and simplify to get 12/13 or do you say

    asked by crystal
  30. physics

    A bungee jumper with mass 63.5 kg jumps from a high bridge. After reaching his lowest point, he oscillates up and down, hitting a low point eight more times in 40.0 s. He finally comes to rest 28.5 m below the level of the bridge. Calculate the spring

    asked by Anonymous
  31. math

    what is a ratio that is simplest from: 14 to 16

    asked by malik
  32. math

    The capacity of a 1cm cube is 1mL. How many 1cm ice cubes would you need ti melt to fill a 1.5L jar?

    asked by vanessa
  33. math

    madison square garedn in new york city is built in the shape of a circle. its diameter is 404 ft and it accommodates 20,234 spectators, the nearest tenth of a square foot, how much area is there for each spectator... please help i am confused...thank you

    asked by Katherine
  34. 12th grade agebra 2

    find all real roots: x^4-6x^2+8=0 and the other polynomial is: 8x^3+1=0

    asked by anna
  35. sewing2

    Mrs. Shotto was once one of your regular customers, but she hasn't asked to have any garments made in approximately one year. You note she has lost weight. She would like you to make her a special silk blouse to replace a favorite blouse that has worn out.

    asked by katherine
  36. math

    jake spent 3/8 of his money on a book and 1/2 of what was left on a magazine.he now has $6.25. how much money did he start with? please help me i am confused... thank you :)

    asked by Katherine
  37. Chemistry

    Which group of the periodic table of elements forms only 1+ ions? Answer is group 1A. Why?

    asked by Danielle
  38. AED 201

    Write a 200-to 300-word response to the following: Assume you are a teacher who would like to address a technology issue at your school. Many of the studnets' textbooks provide Web links for engaging enrichment activities. Each classroom has five

    asked by Rayna
  39. Chemistry

    In photosynthesis, plants form glucose and oxygen from carbon dioxide and water. Calculate Delta S at 15 degrees celsius.

    asked by FannySmyth
  40. math

    The sale of lawn mowers t years after a particular model is introduced is given by the function y=5500 ln(9t+4), where y is the number of mowers sold. !@#$%^& many mowers will be sold 2 years after a model is introduced? Round the answer to the nearest

    asked by sefako
  41. Chemistry

    what is the balanced equation of: Combination reaction: Li2O(s)+H2O(l)-->(?) I know what a combination reaction is but I don't know how to do it when it is complex like this one.

    asked by Louis
  42. math

    what is an example of associative propety of addition

    asked by malik
  43. chemistry

    If 4.05 g of methane gas (CH4) is introduced into an evacuated 1.40 L container at 53°C, what is the pressure in the container?

    asked by kristen
  44. math

    Jen collects stamps. The first month she added 25 stamps. Six months later, she doubled in number to a total of 98. How many stamps did she have to start with.

    asked by malik
  45. physics

    Suppose an occlusion in an artery reduces its diameter by 22%, but the volume flow rate of blood in the artery remains the same. By what factor has the pressure drop across the length of this artery increased?

    asked by ryan
  46. chemistry

    If 4.05 g of methane gas (CH4) is introduced into an evacuated 1.40 L container at 53°C, what is the pressure in the container?

    asked by kristen
  47. english

    Describing a character's luxurious style of dress is an example of creating character through sympathy. appearance. speech. imagery.

    asked by ballamoney1
  48. chemistry

    if 25.0 ML of 15M nitric acid is diluted to 125 mL, what is the concentration of the new solution?

    asked by julie
  49. Chemistry

    What is the product of a grignard reaction of bromotoluene and co2 as starting materials?

    asked by Jay
  50. English

    I need a problem with the topic on online learning vs. traditional learning. What is the solution? The justification?

    asked by Mary
  51. business

    making a good impression is vital, since we tend to form an opinion in about

    asked by elizabeth
  52. business management

    Global Reader is a 5 year old E-company that grew from $1 million in sales in the second year to $8 million in sales. They have created the industry’s first portable book reader that provides any book in four major languages. They have manufacturing

    asked by tee
  53. Calculus

    Find parametric equations for the tangent line to the curve with the given parametric equations at the specified point. x=4cos(t) y=4sin(t) z= 10cos(2t) (2sqrt2,2sqrt2,0)

    asked by Mike
  54. Math

    The curves r1 = < 3t, t2, t3 > and r2 = < sin(t), sin(5t), t > intersect at the origin. Find their angle of intersection, è correct to the nearest degree. è =

    asked by Mike
  55. physics

    Near the surface of the Earth, a startled armadillo leaps vertically upward at time t = 0, at time t = 0.5 s, it is a height of 0.98 m above the ground. At what time does it land back on the ground?

    asked by Jason
  56. eth 125

    I have rewrote this paper 3 times my fellow classmate keeps telling me it is not in APA format. Can someone please point out what needs to be fixed. I am completely confused now and ready to give up. Your help would be wonderful. Here is the paper...

    asked by brandi
  57. math

    A student claims that if a fair coin is tossed and comes up heads 5 times in a row, then, according to the law of averages, the probability of tails on the next toss is greater than the probability of heads. What is your reply?

    asked by crystal
  58. Math

    I've been taught by my math teacher that pi = 22/7. Is that true?

    asked by Someone
  59. art 101

    Realism by 1860 had lost its political meaning and became also known as

    asked by allen
  60. english

    7.Sneezing spreads colds. Present participle Gerund Infinitive Past participle 8.He suggested taking the A train. Infinitive Present participle Gerund Past participle 9.Just imagine being there! Present participle Gerund Past participle Infinitive 10.

    asked by christopher
  61. English

    2. This modifier illustrates the rule that adjectives of two syllables vary. If the word ends in -y, change the y to i and add -er, -est endings. Otherwise, some two-syllable adjectives take -er, -est endings. Others take more, most and less, least.

    asked by christopher
  62. College Algebra

    what is (f0g)(3)if f(x)=1/2 and g(x)=4/x I am getting -3/2 am I corect

    asked by John
  63. math

    wich is another way to write x+x+x+x? a.4x b.4+x c.4* d.x4

    asked by michael
  64. college

    expects dividends paid to increase by 9.50 percent for the next two years and by 2 percent thereafter. If the current price of Two-Stage’s common shares is $10.40, then what is the cost of common equity capital for the firm? (Omit the percent sign in

    asked by Anonymous
  65. English

    What word does not belong? Intimidating Scary Fear Approachable I told my friend Intimidating does not belong. She said Approachable. Who is right?

    asked by Anonymous
  66. English

    This is set up for my interview class and I just need some help .. please and thank you. You are encountered with a guest who is upset and clearly has a complaint.. what do you do? & You see a co-worker receiving food without paying for it.. what do you

    asked by Bailey
  67. math

    a math professor is thrown off the matthews bridges, height 240ft, by a disgruntled calculus class with an intitial upward velocity of 10ft/s a) assumign the acceleration dude to gravity is -32ft/s^2,find the macimum height of the professor. b) find the

    asked by miley
  68. Spanish

    What is the translation for this poem? I have to fill in the blanks but I can't even translate it. If you can help I'd truly appreciate it. Here's the poem: En la 11. ___________ te llamé. De la oscuridad me llamaste. Reconocí tu 12. ___________.

    asked by Ebonee
  69. English

    Can you check if the following sentences are possible in English? Thank you very much in advance for your invaluable help. 1) The barons received lands (or land) from the king. 2) The land was held by the vassals. 3) In the medieval mind (?) there was also

    asked by Franco
  70. Chem

    Hi! I need help with this problem, also I was wondering what kind of problem is this... limiting reactant?calculate the mass of hydrogen cyanide that could be produced by the complete reaction of 500.0 g of ammonia, 700.0 g of oxygen and 400.0 g of methane

    asked by Anonymous
  71. English

    1.the subject of the sentence is first person, then the verb must be in what form? third person second person fourth person first person Question 2 Verbs indicate what? location punctuation history time Question 3 Verbs may also indicate what? use date

    asked by christopher
  72. history

    Prior to the "democratizing" of politics during the age of Jackson, presidential candidates were usually chosen by a

    asked by rei
  73. Math

    The Relatioship between x and y is y=5x + 18 How does the value of y change when x increses form 1 to 4? a. y increase by 15 b. y increase by 3 c. y decresases by 3 d y dercreased by 15 Help Prettty Pleassseee !

    asked by Emily
  74. history

    6. Do you find it curious that Budinot, an educated and highly assimilated Cherokee, would argue for removal in the name of preserving the Cherokee people? What does he fear if the Cherokee remain? What does this say about his attitude towards his own

    asked by rei
  75. Math

    I am confused by this problem. Divide and simplify. g^-7/g^-4. Divide and unite the expression using positive exponents. My answer is: g^(-7)*g^(-4) g^(-7-4) g^-11 1/g^11 Is this correct?

    asked by B.B.
  76. Chemistry

    Why would potassium no longer appear in the equation of a net ionic equation with KIO3 being the oxidizing agent?

    asked by Teel
  77. history

    fill in the blank Henry IV of france was a member of the family or house of _____________ which now became the rulng dynasty of france. is it planganet?

    asked by jerson
  78. 4th grade

    What generalizations can you make about the temperature that is read on the thermometer and the heat index?

    asked by L R
  79. 11th grade Social Studies

    I was wondering what three thought provoking, open discussions could be that is related to President Wilson's 14 points and World War I might be? Do you have any ideas what I could do? My teacher is asking us, because the questions we write will be used

    asked by Dana
  80. Math (URGENT)

    Solve. 4(-1^2) = ? My calculator says its -4 I got +4 Help Please.

    asked by John
  81. HMS 230

    What method of ethical oversight (such as a code of ethics, an ethics advisory board, oversight by the board of directors, or an ethics audit) would you suggest for Acre Woods Retirement Community as described in the case study in Appendix D?

    asked by Chelle
  82. chemistry

    In pure water at 25 degrees Celsius, what are the concentrations of the products.

    asked by Unknown
  83. 8th grade

    if x=-5, y=4 and z=-3 solve x squared (3x-8y)

    asked by curt
  84. social studies

    explain three ways the Byzantine Empire influenced later civlizations, including russia

    asked by kassie
  85. social studies

    i need help on writing a essay of how the Titanic reflects three of the concepts of classicism(proportion, humanism and idealism. include a clear description of each concept. please help me i'm blank and i have to write a 750-1000 words. i don't knnow were

    asked by dellaine
  86. math

    what is the unit rate of 2 for $4.98

    asked by Joe
  87. math

    what is the prime factorization of 96

    asked by Joey
  88. AED 201

    Many U.S. citizens believe that parents and students must have the right to school choice. Others, however, believe school choice creates greater stratification and segregation among public schools. For example, some argue strong schools have better

    asked by Rayna
  89. calculus

    differentiate and do not simplify: Y=e^ -sq.rt x + e^3 - 2^(3x-1)

    asked by Aliza
  90. math

    a math professor is thrown off the matthews bridges, height 240ft, by a disgruntled calculus class with an intitial upward velocity of 10ft/s a) assumign the acceleration dude to gravity is -32ft/s^2,find the macimum height of the professor. b) find the

    asked by piper
  91. Math

    Joe invested $12,000, part at 6% interest and part at 8% interest. In the first year he earned $860 in interest. How much was invested at each rate? Answer _____________

    asked by Amanda
  92. health

    How might incorporating a fitness plan and a balanced diet positively affect your well being?

    asked by Henry
  93. calculus

    I am confused on how to write this function as an exponential function having a base 10: P(t)= 50e^(0.5t). The answer in my textbook is: P(t) =50(10)^(t/4.6)

    asked by Ted
  94. physics

    A fisherman's scale stretches 3.5 cm when a 2.1 kg fish hangs from it. I know that k=590 N/m and f=2.7 Hz. How do I find the amplitude of vibration if the fish is pulled down 3.2 cm more and released so that it vibrates up and down? Please help!

    asked by Anonymous
  95. geometry

    what are the roots of the quadratic x^2+7x+6=0

    asked by khyra
  96. English

    Which sentence contains a shift in number? The lake contained garbage that flows through the storm drains. He couldn't refuse when offered another helping of dessert; sometimes you just can't resist! His book was returned to the bin, and then Johnny

    asked by christopher
  97. math

    what is the compliment of 35 degrees

    asked by Joey
  98. Geometry

    how do you find x for:

    asked by Sam
  99. college algebra

    if y=kx/square root of w find k when y=4 x=12 and w =4 I have an answer of 16/3 aia believe that the correct answer is 2/3 am I right.

    asked by Jake
  100. chemistry

    a student needed 1000 ml of a 0.10 buffer of ph 4.0. calculate the amount of sodium acetate and acidic acid needed for this solution

    asked by bay
  101. college algebra

    f(x)=4x/x-2 what is the vertical asymptote I have a possible answer of x=2

    asked by Jake
  102. science

    Why are some protists able to move faster than others?

    asked by john
  103. English

    .the subject of the sentence is first person, then the verb must be in what form? third person second person fourth person first person Question 2 Verbs indicate what? location punctuation history time Question 3 Verbs may also indicate what? use date

    asked by christopher
  104. trig

    how come you get different answers if you take different paths in trigonometry? (when you choose to use sin, cos or tan)

    asked by Isabelle
  105. college algebra

    if f(x)=4x/x-2 what is f(3) possible answer would be f(3)=12 is this correct

    asked by Jake
  106. engineering

    surgery successful 0.91 and continued health 0.85 are the probability of two outcomes for a patient given surgical for a possible condition.what is the probability of positive outcome (surgery successful or continued health). here are the option a.0.12

    asked by srai
  107. math

    For which table(s) of values in Exercises 39–42 is the relationship linear? Tell how you decided. Write the equation for each linear relationship. x 5 10 15 20 25 30 y 20 30 40 50 50 50 I understand this is not linear function but what is it asking me to

    asked by Alex
  108. maths

    The width of a rectangular photograph is 5cm more than the height. The area is 80cm squared. Find the height of the photograph.

    asked by nabiha
  109. MATH

    WHAT IS 5pi/16 IN DEGREES?

    asked by YAJI
  110. history

    Compare Matrilineal and Patrilineal Cultures

    asked by kassie
  111. physics

    A pendulum clock was moved from a location where g=9.8152 m/s^2 to another location where g=9.7959 m/s^2. During the move, the length of the clock's pendulum did not change; nevertheless, the clock lost accuracy. Assuming the clock was perfectly accurate

    asked by Anonymous
  112. arts

    The Mesopotamian's 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 Anonymous
  113. English

    1.Establishing credibility involves what? assuring the audience that what you are arguing for is for the general good, a widespread issue or problem, one that they may share with you citing authorities on the subject who support your point wholeheartedly

    asked by christopher
  114. Chem

    am having trouble understanding this redox rxn.....tell me if i classify it correctly... 2K + Cl2---> 2KCl oxidized is Cl is the recducing agent reduced is K is the oxidizing agent

    asked by pete
  115. 9th grade

    who is prince henry and what did he do???

    asked by jessica
  116. Math

    I am to express the following using a positive exponent. Then I have to simplify the expression. Do not evaluate. 9^-2. Here is my answer: 9^-2=1/81. Is this correct? Thanks.

    asked by B.B.
  117. College Chemistry

    Calculate the electrode potential of a copper half-call containing 0.05M Cu(NO3). E^0 Cu2+/Cu = 0.337 V

    asked by L**
  118. math

    could someone pls help? what transformations must be applied to the graph of y=sinx to obtain the graph of y=sin(x+150 degrees) + 3. state domain for one cycle and state the range.

    asked by deborah
  119. biology

    How can the level of pain you feel very if a stimulus causes an all-or-none response?

    asked by Nikki
  120. reading

    what problems did amelia earhart have

    asked by michaela
  121. chemistry

    i figured out the shape of this elements. Are the correct or wrong? A)CS_2 Linear B)BrF_4{-} Square Planar C)ICl_3 T shaped D)CIO_3{-} Square Planar E)SeO_3 Planar Triangular

    asked by nnn
  122. English

    A good topic for a paper on online learning lack of intercation.

    asked by Mary
  123. Finance

    If my checking account pays 3.4 % interest, how much would I earn per month if I maintain a $24,000.00 balance?

    asked by Anonymous
  124. chemistry

    which on of them are polar and non polar? PBr_3 SO_3 AsCl_3 ClF_3 BCI_3 Cl is chloride

    asked by nnn
  125. U.S. History

    Who benefitted more from the compromise of 1850, the north or south?

    asked by Claire
  126. Physics

    A vibrating 1000-hertz tuning fork produces sound waves that travel at 340 meters per second in air. Points A and B are some distance from the tuning fork. Point P is 20. meters from the tuning fork. 1. If the waves are in phase at point A and B, what is

    asked by Priscilla
  127. Math

    What is the area and perimeter of a quadrilateral that has a width of 4m and length of 14m

    asked by Jacob
  128. calc

    How do you find the derivative of: ln(3x^2 + x - 1) I know the derivative of lnx is 1/x

    asked by Ted
  129. Chemistry

    given the true molar masses of CuSO4 and H2O how could you find the exact formula of the hydraye from your experimental data. Find the Value of X in the Formula CuSO4x XH2O

    asked by Alex
  130. Physics

    At the surface of a freshwater lake the air pressure is 1.0 atm. At what depth under water in the lake is the water pressure 3.8 atm?

    asked by Max
  131. Physics:upward acc of earth

    If the Earth's gravitational force causes a falling 93 kg student to accelerate downward at 9.8 m/s2, determine the upward acceleration of the Earth during the student's fall. Take the mass of the Earth to be Mearth = 5.98 x 1024 kg. Answer in units of

    asked by HELP ME!!
  132. Chemistry

    I don't know if i am solving for the number moles of NaI correctly, i multiply .21 by 1.67, is that incorrect? i know that to solve this you have to find the limiting reagent, but i think the problem might be that i am solving for moles wrong. If 210 mL of

    asked by Tokey
  133. sewing

    Base the answers to Questions 1–3 on the following information: Ms. Troy would like you to make a copy of an outfit that she owns and really likes—a sleeveless dress with a short-sleeve jacket. She has selected a lilac linen fabric that comes in 36-in.

    asked by kat
  134. sewing2

    please help me i need help on these qestions ive tried doing them even asking others for help but no one seems to understand them.... Ms. Troy would like you to make a copy of an outfit that she owns and really likes—a sleeveless dress with a

    asked by katherine
  135. PHYSICS

    A 16 kg block slides down a 30 degree frictionless incline where it is stopped by a strong Hook's Law spring at the bottom. The spring constant is k = 9.8 x10^4 N/m. If the block slides 9 m from the point where it was released (from rest) to the point

    asked by Jason
  136. Calculus

    If log base a * b = 1/x and log base b * sq.rt a = 3x^2 show that x=1/6.

    asked by Ann
  137. Chemistry

    45.0 ml of 9.0x10 the negative 2m hno3 I am needing the steps to help solve the above chem equation

    asked by Help
  138. Physics

    A Canada goose floats with 26.1% of its volume below water. What is the average density of the goose?

    asked by Max
  139. calculus

    simply the summation of (2/n)(2i/n)

    asked by Jake
  140. math.algebra1

    How would I simplify The spare root of 10(x+3)^3 * the spaure root of 18(x+5)^5

    asked by michelle
  141. math

    If I use the method of completing the square on 3w^2-4w+1=0 How would I solve??

    asked by I need some explaining
  142. Physics

    A model airplane is tethered by a wire. How could you calculate the tangential speed of the airplane if the line breaks?

    asked by Yasmn
  143. algebra

    How would you simplifyy 6\spuare root of 3 - spuare root of 10

    asked by michelle
  144. COM220

    need to incorporate statistics,graphs and illustrations

    asked by demjon
  145. math

    there are 30 students in math class.12 belong to the computer lab,and 8 belong to the photography club. 3 belong to both clubs. how many belong to neither?? please help i am confused thank you..... :)

    asked by Katherine
  146. computers

    Create a spreadsheet listing the three computers, computer specifications, and cost. Show the cost benefit of each computer.

    asked by missy
  147. social studies

    Who were some of the French explorers who came to North America?

    asked by autumn
  148. Physics

    A sphere of radius 20 cm and mass 1.2 kg rolls without slipping down a 30 degree incline that is 10 m long. a) Calculare the translational and rotational speeds of the sphere when it reaches the bottom. Assume it starts from rest, and first solve for each

    asked by Alley
  149. 2nd grade

    there are 16 children in room a. there are 11 children in room b. can they make 2 equal teams? How many children would be on each team?

    asked by sydney
  150. math probability

    One card is selected at random from an ordinary set of 52 cards. Find the probability of each of the following events: d. A jack is not drawn would the answer be:48/52 since you subtract 4 from 52 for the four jacks and simplify to get 12/13 or do you say

    asked by crystal
  151. PHYSICS

    A 74 kg adult sits at one end of a 8.5 m long board. His 35 kg child sits on the other end.Where should the pivot be placed so that the board is balanced, ignoring the board's mass?

    asked by JP
  152. business

    It is a problem about the job-order costing used by a law firm.

    asked by Elena
  153. english

    1. You have to feed the baby with water sometimes. 2. You have to feed water for the baby sometimes. 3. The baby must have peed. You have to change the diaper. The diaper is wet. Will you bring a new diaper? 4. The baby gave out dung. Bring me a baby

    asked by rfvv
  154. Ion Charge & Formulas of Ionic Compounds

    Can you please take a look at my questions. Thank you very much. 1.classify the law of definite proportions. In specific proportions, A type of compound always contains the same elements. Is this good? Any other info would be greatly appreciated. do

    asked by Sara
  155. Gr. 10 Math

    Evaluate each expression for the given value(s) of the variable(s). 2x^2 - 3xy + 4y^2 for x=2, y=-1 My Answer: (2(2^2)) - (3*2*-1) + (4(-1^2)) = 10 Text Book Answer: 18 Please help. Am I doing something wrong? I redid the expression 3 times and still got

    asked by John
  156. calculus

    evaluate the intergral using substitution ingergral[(x^2-e^3x)/(x^3-e^3x)^2]dx

    asked by keisha
  157. geometery

    if the perimeter of a parallelogram is 132cm the longest possible length of a diagonal is less then ?

    asked by hannah
  158. biology

    what is the process by which organisms maintain a relatively stable internal environment?

    asked by Nikki
  159. application

    sir I m applying for a jab n there i have to submit a note "why i m interested in this job"so plz help me out to draft a note as above

    asked by richa
  160. calculus

    Find the local max/min points for the function y=x^2 * e^x

    asked by Anonymous
  161. calculus

    use the calculator to find theta with a line threw it to the nearest tenth of a degree if theta degree

    asked by Anonymous
  162. physics

    when an impulse is given to a particle, momentum is transferred from an external agent to that particle. What do they mean by external agent what is really an impulse beside saying that its a change in momentum

    asked by phys
  163. Chemistry

    How many grams of NH4Cl must be added to 250ml of .2M NH4OH in order that the solution shall have a pH of 7.2?

    asked by Johnny
  164. calculus

    Find the derivative r '(t) of the vector function r(t).

    asked by Mike
  165. HIM

    Describe several features of an Health Information Management job in the next 7 years?

    asked by Carol
  166. calculus

    c(t) = t^3 * 2^(-t/2) Find the initial concentration c(0) at time t=0 min. Finds the maximum concentration of the dye sand the time when this occurs.

    asked by Anonymous
  167. chemistry

    Determine the volume of H gas needed to react completely with 5.00 L of O to form water ?

    asked by Anonymous
  168. Chemistry

    If 45.3 mL of liquid CS2 and 7.62 L of gaseous O2 measured at STP are reacted stoichiometrically according to the balanced equation, how many milliliters of liquid CS2 remain? CS2(l) + 3O2(g) -> CO2(g) + 2SO2(g) Molar Mass (g/mol) CS2 76.143 O2 31.998

    asked by Lisa
  169. math

    There is a vertical asymptote at x=2, and a horizontal asymptote at y=3. Construct a suitable rational function f(x).

    asked by Iva
  170. Emac Computer

    Say if you put a password on a emac computer and then forgot about it, how do you unlock it? Is there any way to bring up that password?

    asked by Anonymous
  171. calculus

    Given the population functuon P(t)= 50/ (1 + 4e^(-.1t) , fine the maximum rate of growth for this population where t is measured in days. What is the actual population at this time.

    asked by Anonymous
  172. physical science

    If a 500-lb piler driver is raised to a height of 12 feet then dropped how much work was done on the pile driver in raising it?

    asked by tee
  173. Maths

    Get Rich Quick Investments LTD offers 2 investment schemes. Scheme 1: Earn 6.5% interest per year, compounded monthly. Scheme 2: Earn 6.45% interest per year, compounded daily. An investor reasons that Scheme 2 should be the best because its interest rate

    asked by Ana
  174. chemistry

    the kingdom animalia includes

    asked by domenique
  175. calculus

    Find the value of x where Y= 5^2x * e^(3x^2) has a horizontal tangent. Is this point a Max, Min or plateau?

    asked by Anonymous
  176. chemistry

    consider the electrolysis of molten AlCl3 what must the current be in amps if you need to obtain 25.0 grams of aluminum in 5.00 min

    asked by Sanaa
  177. Physics (mechanics)

    There are two parts for this questions... "When a bowling ball collides with the pins, the momentum of the bowling ball and the pins is conserved." Give the assumptions and conditions for this statement. Compare the effect on the collision between the

    asked by Eddy
  178. maths

    The width of a rectangular photograph is 5cm more than the height. The area is 80cm squared. Find the height of the photograph.

    asked by nabiha
  179. math

    A rectangular prism with a base area of 38 sq in & height of 9 in is filled to the top with water. The water is poured into fish tank that is 21 in by 8 in and is 10 in tall. How high is the water in the fish tank?

    asked by Jordan
  180. Business Operations

    It was a little past 9:00 on a Monday morning when Jeff Baker walked into your office with a box of donuts. He offered you one as he sat down. This didn’t strike you as odd since members of the staff often brought donuts or kolaches to pass around the

    asked by Anonymous
  181. calculus

    The manager of a large apartment complex knows from experience that 100 units will be occupied if the rent is 350 dollars per month. A market survey suggests that, on the average, one additional unit will remain vacant for each 7 dollar increase in rent.

    asked by stuck
  182. home economics

    okay so i have these 4 questions that i have no clue about...i asked my mom and aunts but they don't make clothes so im stuck on these 4 question i would appreciate if you could please help me 7. You're sewing a child's nylon jacket. You notice the fabric

    asked by josh
  183. Music

    PLEASE HELP ME WITH THIS!!! GIVE ME A WEB LINK OR SOMETHING GOOD!!! what is being stated in the last long stanza (the third one) of the lyric "If I Ruled the World.!!!!"

    asked by Troy
  184. Ion charge & formulas of ionic compunds-DrBob222

    These are the other questions: I'll start from Number 1. 1. I have to write down the symbol for the following ions: a- sodium = Na b- chloride = CL c- sulfate = S d- ammonium = ? would it be NH4? e- chromium (II) = Cr f- chromium(III) = Cr 2. write the

    asked by Sara
  185. chemistry

    What is the change in energy, Delta E, in kilojoules per mole of hydrogen atoms for an electron transition from n=5 to n=2?

    asked by Anonymous

    the central location of india at the head of the indian ocean is considered of great significance?????????????????

    asked by tanya
  187. calculus

    Differentiate and do not simplify. y= e^(- sq.rt x) + e^3 - 2^(3x-1)

    asked by Anonymous
  188. chemistry

    calculate the number of atoms of N in .75 moles N2 and in 40g of N2O.

    asked by Amy
  189. Geometry

    A coin of radius 1 cm is tossed onto a plane surface that has been tesselated by right triangles whose sides are 8 cm, 15 cm, and 17 cm long. What is the probability that the coin lands within one of the triangles?

    asked by Eunice
  190. maths

    solve h(x+5) = 80 as a quadratic

    asked by nabiha
  191. Science

    A plastic block has sides that measure 4 centimeters, 2 centimeters, and 3 centimeters. Its mass is 19.2 grams. Predict whether the block will float in water. Will it float in olive oil?

    asked by RJ
  192. social studies

    What title did the islams use for their highest learder?

    asked by Brittany
  193. 3rd grade

    I am less than 100. The sum of my digits is 4. Half of me is an odd number.

    asked by Skyshun
  194. 6th Grade: English Language Arts

    Can you give me a way to remember ALL of the parts of speech. Can you tell me what they are and mean? Tommorrow is my Finals. Please Answer. xoxo, O.S.

    asked by Oyshey Shopon
  195. maths

    solve h(x+5) = 80 as a quadratic

    asked by nabiha
  196. english

    n which one of the following sentences does the verb agree with the subject? A. The book that explains the plays is on the shelf. B. There is a million reasons why I shouldn’t go. C. Who is the people in the photograph? D. Here is the reasons we can’t

    asked by chris
  197. Economy

    why will export growth remain bright for U.S.

    asked by Annie Burns
  198. algebra

    I was wondering what the answer to this is. (x-7)3 3 means it is cubed i workedit out but i was wondering what it might be.

    asked by justin
  199. DrBob222

    I really want to know what this symbol means ^. I haven't learned about it at all. Does it mean squared or something?

    asked by Sara
  200. college

    0.10 moles HCOOH (formic acid) and 0.02 moles HCOONa (sodium formate) are dissolved in a liter of water. what is the resulting pH solution?

    asked by Anonymous
  201. chemistry

    find the mass of solute needed. 3.0 liters of 2.0 M NaOH. or 500ml of 1.5 M NaCl?

    asked by joseph
  202. Programming C++

    #include #include { clrscr(); int first_value; int second_value; long result; print f("enter your first value:); scanf("%d",&first_value); printf("enter your second value:); scanf("%d",&second_value:); result=first_value+second_value; printf("the sum of

    asked by Maryam
  203. science

    If water boils does it transmit energy

    asked by Anonymous
  204. Calculus

    Estimate the area under the graph f(x)=3x^3 + 5 from x=-1 to x=5 using 12 mid points? I got the right answer for using 6 mid points but what mid points would I use for 12?

    asked by Z32
  205. MB0039

    Select and briefly describe two corporate ads that you have seen recently which you feel are effective. Explain how they benefit the company

    asked by bipin
  206. math

    math professor is thrown off the matthews bridges, height 240ft, by a disgruntled calculus class with an intitial upward velocity of 10ft/s a) assumign the acceleration dude to gravity is -32ft/s^2,find the macimum height of the professor. b) find the time

    asked by piper
  207. science

    why are natural languages not suited for programming of computers?

    asked by Ralph
  208. 5th grade

    does water boil transmit energy

    asked by Anonymous
  209. calculus


    asked by Aliza
  210. medical law and ethics

    You are a health care professional working in a large office. Your administrator has asked you to prepare a poster summarizing the public duties of the physician as specified by law. The poster will be set up in the waiting room and will have a heading "We

    asked by Missy
  211. Algebra 1

    How would you solve the problem (w - 2)^2 ???? So far I've gotten w^2-2w*2-4 Where do I go from here? Have I even gotten what I have right? I understand when I'm with my teacher, but as soon as I got home, I was a little lost. So any help would be great!!

    asked by Cecilia
  212. Statistics

    12% of voters in a recent election voted on the greens candidate, if 10 people were randomly selected what is the probability that exactly 4 people voted for the green candidate.

    asked by Matt
  213. DrBob222-Questions

    Can you please check these for me. Thank you very much in return:-) For Al2(SO4)3 you gave me Aluminum ion and Sulfate ion. These are the rest: CaCl2 = Calcium ion and Chlorite ion Na2O = Sodium ion and Oxygen ion AgCl = silver ion and chlorine ion Na3PO4

    asked by Sara
  214. English

    Can you help me rephrase a few lines taken from The General Prologue to the Prioress Tale? Thank you very much. 1) "Her way of smiling was very simple and coy. Her greatest oath was only "By St.Loy" 2) Rephrase: Her smile was simple and timid (?)Her

    asked by Franco
  215. Calculus

    n(t) = 800/ (1 + 39e^-t) Where n is the number of students who have heard the rumour as a function of time, t, in days. What is the student population of the school? How long will it take for the rumour to reacglh half of the school's population? What dat

    asked by Ann
  216. math

    if almonds cost $3.79 for 6oz and that = 4/3 of a cup. how many oz are in 1/2 of cup

    asked by adrienne
  217. biology

    Carbon monoxide blocks the transport of what by hemoglobin in the blood?

    asked by Nikki
  218. French

    Can you proofread this French homework for me? Dans le film “Les sous-doués,” la majorité des personnages ont des traits qui sont sympathiques et des traits antipathiques. Mais deux personnages ont des traits qui sont plus extrêmes ou plus forts,

    asked by A
  219. Calculus

    Solve for x: Lnx= -5 I am stuck on this simple qusetion, i know the answer is .01, but I donr't know how to get it. Thanks!

    asked by Danielle
  220. english

    please help me with the question:find a mistake in the following sentence: The labor unions met with the management board all the night in order to avoid a strike. I know the mistake is " all the night". it should be all night. ButI don't know the reason.

    asked by hong
  221. eth 125

    I have my paper dine but for some reason my class mate is telling me that the APA is incorrect, would some one be a dear and look over my paper and tell me if I did the APA right? Here is my paper Ethnic Groups and Discrimination: German Immigration Your

    asked by brandi
  222. probability

    If you were to spin a spinner that had eight equal parts labled 1-8 three times what is the probability that all three numbers are (3 or greater than five)?

    asked by lucky
  223. college - computers in operation managment

    It’s lunch time and you’re at Subway. You would like to get a 6” sub sandwich and a beverage for sure and are deciding whether or not you would also like soup and/or a cookie. You only have $13 on you. You also have certain nutritional requirements

    asked by Diceykid10
  224. Science

    Someone gives you an unknown mineral. You can scratch it with quartz but not with feldspar. What is the mineral's approximate hardness?

    asked by Shamaree
  225. business

    Consider the wide spectrum of business organizations, ranging from gigantic corporations to working at home

    asked by Anonymous
  226. biology

    Rank these from largest to smallest, bacteria, organelle, cell, atom, virus, protein, molecule

    asked by Ashley Evans
  227. English

    Could you possibly please tell me if everything is OK in the following sentences? Thank you very much in advance. 1) There was an elegant Prioress. Her name was Madam Eglantine. She had a simple and timid smile. 2) Her strongest oath was by St Loy, the

    asked by Franco
  228. social studies

    what is culture?

    asked by shakti
  229. english!!

    In The Birds, what is the weather like during the autumn before the attack, and what does this signify? The cold autumn signifies that nature is frequently harsh and dangerous. The cold autumn signifies that winter follows autumn. The mild autumn signifies

    asked by ballamoney1
  230. College Chemistry

    Calculate the electrode potential of a copper half-call containing 0.05M Cu(NO3). E^0 Cu2+/Cu = 0.337 V College Chemistry - DrBob222, Tuesday, April 20, 2010 at 5:19pm E = Eo - (0.0592/n)log[(Cu)/(Cu^+2)] Substitute 2 for n and 0.05 M for Cu^+2 and 0.337

    asked by L**
  231. Finance

    Suppose you are considering two investments, stock A and stock B. The beta of A is 1.20, and the beta of B is 0.80. Stock A has an expected return of 12% and Treasury Bills are yielding 3%. If the two stocks are fairly prices, what's the expected return on

    asked by Bob
  232. chemistry

    Convert 50 ppm NaCl to molarity of NaCl

    asked by SID
  233. scientist

    is a snail a mammal ,birds,amphibibians,reptile,fish,invertebrates

    asked by stephen durant,jr
  234. English

    PLEASE HELP ME WITH THIS!!! GIVE ME A WEB LINK OR SOMETHING GOOD!!! what is being stated in the last long stanza (the third one) of the lyric "If I Ruled the World.!!!!"

    asked by Jimmy
  235. Math-Algebra

    What similarities and differences is there between functions and linear equations

    asked by Anonymous
  236. math

    Argus company makes three products: A, B, and C. Each unit of A costs $4, each unit of B costs $2, and each unit of C costs $1 to produce. Argus must produce at least 20 As, 30 Bs, and 40 Cs combined. Minimize Argus's costs

    asked by brittney
  237. Math

    I don't get what the problem is asking? "Which of the following shows the next step using the least common denominator simplify 7/8 - 5/6?" there's 4 answers, A. (7/8 x 3/3) - (5/6 x 4/4) B. (7/8 x 4/4) - (5/6 x 3/3) C. (7/8 x 5/5) - (5/6 x 7/7) d. (7/8 x

    asked by Lea
  238. Math-Algebra

    What similarities and differences is there between functions and linear equations

    asked by Anonymous
  239. reading

    the dolphin is often called a fish. it is really a mammal that lives in the sea. the dolphin must come to the surface to breathe. it can stay underwater six minutes before returning for air. often refferred to as the ''prankster of the sea,'' the dolphin

    asked by Astasia
  240. English

    1.Which sentence below contains a dangling modifier? I threw the newspaper in the waste basket after I read the editorial. After I read the editorial, I threw the paper away. After reading the editorial, I placed the newspaper in the waste basket. After

    asked by christopher
  241. reading

    I studied my history lesson. should the H in history should be captilized or not?? need answer thank you.

    asked by mirecale
  242. PHYSICS


    asked by PHYSICSHELP
  243. math

    Simplify: y-(-y+5)

    asked by Wes
  244. Pathology

    How does the AIDS treatment and resources to the public impact the delivery of health care services?

    asked by Meeka
  245. Math

    express 53 as the sum of 4 or less perfect squares please help me solve, thanks!

    asked by Packy
  246. chemistry

    What mass, in grams, of sodium hydroxide (NaOH) is produced if 20 grams of sodium metal(Na) reacts with excess water?

    asked by Anonymous
  247. American Literature

    I have to write a report on Mark Twain. I'm not suppose to write his biography. I'm supose to write about his works, achievements, impact on his readers, society, american literature, etc. I haven't been able to find too much, because the internet just

    asked by Jennifer
  248. maths

    I am divisible by 8 and by 9. I am a three digit multiple of 10. I am between 200 and 700. What am i?

    asked by victoria
  249. chemistry

    How much heat is absorbed by a 2000 kg granite boulder as energy from the sun causes its temperature to change from 8°C to 26°C?

    asked by reily
  250. chemistry

    what volume of CO2 would be formed if 84.2 g of calcium carbonate decomposed according to the following equation: CaCO3---> CaO+CO2

    asked by kyle
  251. Algebra

    Is there an instance when a linear equation is not a function?

    asked by Anonymous
  252. English

    Question 2 Identify the correctly punctuated sentence below. Bill was disguised in the photograph, therefore, his wife failed to recognize him. Bill was disguised in the photograph therefore, his wife failed to recognize him. Bill was disguised in the

    asked by christopher
  253. math

    Wich pattern below is a nonlinear ? 2,4,6,8,10 -,8.5,11.5,14.5 -3,-7,-11,-15,-19 HELP!

    asked by ashley
  254. chemistry

    P (atm) V (L) n (mol) T 5.08 (Fill in) 2.00 141 degress C i need to fill in the volume PLEASE HELP. THANKS

    asked by carson
  255. 2nd grade

    home work paper says: On the back:cut out a letter. make a motion pattern on the back. I am clueless please help.

    asked by eric
  256. Marketing

    The manager of the aluminum recycling division of Environmental Services wants a survey which will tell him how many households in the city of Seattle, Washington, will voluntarily wash out, store, and then transport all of their aluminum cans to a central

    asked by Lee
  257. Physics

    A motorist drives along a straight road at a constant speed of 60 m/s. At time t = 0 she passes a parked motorcycle police o±cer. The o±cer takes o® after her at t = 0 and accelerates according to the formula a(t) = bt, where t is the time and b is a

    asked by Jason
  258. 5th grade

    name at least two suspensions

    asked by anna
  259. business

    how is human information system maintainede at a reserve bank?

    asked by jasnita