Popular questions and responses by Diana
  1. Physics

    a 2uF capacitor is charged to a potential of 200v and then isolated. When it is connected in parallel switch a second capacitor which was initially not charged, the common potential becomes 40v. The capacitance of the second capacitor is?

    asked on June 22, 2019
  2. Chemistry

    #1) The Lewis structure of PF3 shows that central phosphorus atom has ___ nonbonding and ___ bonding electron pairs. #2) How many equivalent resonance forms can be drawn for CO3^-2? (carbon is the central atom) #3) The bond angle in NF3 is slightly less

    asked on May 21, 2009
  3. Chemistry

    A current of 0.80 A was applied to an electrolytic cell containing molten CdCl2 for 2.5 hours. Calculate the mass (in grams) of cadmium metal deposited. [Enter only numbers in the blank.]

    asked on November 15, 2010
  4. math

    The average (arithmetic mean) of 4 numbers is greater than 7 and less than 11. What is one possible number that could be the sum of these 4 numbers?

    asked on October 2, 2008
  5. Direct and indirect guidance

    When a teacher says, "Dennis, please put the baseball equipment away before you leave the playground," the teacher has asked for _______ compliance. A. threatening B. task C. attentional D. contact My answer is B.

    asked on April 8, 2019
  6. Math

    Anika's checking account had a balance of $3,100.55 on July 1. After looking at her bank statement, she noticed an NSF for $60.50, a service charge of $12.55, and a note collected for $600. There was one deposit in transit for $400 and no checks

    asked on August 6, 2019
  7. Chemistry

    Consider an electrochemical cell based on the following cell diagram: Pt | Pu3+(aq), Pu4+(aq) || Cl2(g), Cl−(aq) | Pt Given that the standard cell emf is 0.35 V and that the standard reduction potential of chlorine is 1.36 V, what is the standard

    asked on November 15, 2010
  8. Child, family and community

    Which of the following is a responsibility of early educators? A. Set up the center or classroom to invite both boys and girls to all areas. B. Create competitive activities between boys and girls. C. Set up a classroom environment that supports

    asked on July 9, 2019
  9. early childhood

    Which of the following best describes the eclectic approach to guiding children? A. It accommodates different children's needs. B. It takes children from different backgrounds and helps them transition to the dominant culture. C. It relies on technological

    asked on June 2, 2019
  10. Chemistry

    Calculate the cell emf (in volts) for the following reaction at 25°C: Ni(s) + 2 Cu2+(0.010 M) → Ni2+(0.0010 M) + 2 Cu+(1.0 M) [Enter only the number of your answer.] Answer

    asked on November 15, 2010
  11. physics

    Two identical small spheres of mass 2.0g are fastened to the ends of an insulating thread of length 0.60m The spheres are suspended by a hook in the ceiling from the centre of the thread. The spheres are given identical electric charges and hang in static

    asked on February 9, 2011
  12. chemistry

    NaOH(aq)+H3PO4(aq)¨Na3PO4(pq)+H2O(l) Please help.

    asked on May 1, 2011
  13. statistics

    A researcher wishes to estimate with 95% confidence the proportion of adults who have high speed internet access. Her estimate must be accurate within 4% of the true proportion. 1. Find the minimum sample size needed using a prior study that found that 48%

    asked on October 14, 2012
  14. Art

    Which of the following is an appropriate way to develop children's vocabulary about art? a. Insisting that children use the correct terms when discussing art b. Rewarding a memorization of word list c. Avoiding the use of accurate vocabulary that may be to

    asked on September 3, 2019
  15. Child care and family

    What best characterizes the term stroke pie? A. It should feature a single individual as the sole support of another. B. It has to do only with financial support, not emotional support. C. It's a favorite American dessert. D. It's a way of assessing how

    asked on July 15, 2019
  16. Improving writing assignment

    Ten years ago, you started working as a clerk for DMD Medical Supplies. Six months ago, Liz Jakowski, the human resources director, promoted you to office manager. You manage two employees: Jack Snyder and Ruth Disselkoen. Your office provides secretarial

    asked on September 8, 2013
  17. Child,family and community

    5. Which of the following best characterizes parents with independence goals? A. They coddle children all the time. B. They usually expect toddlers to feed themselves. C. They downplay individuality. D. They usually sleep with their children and seldom

    asked on July 5, 2019
  18. Guiding young children

    Older children process information _______ younger children. A. more slowly than B. at an unknown rate compared to C. at about the same rate as D. more quickly than My answer I think is D.

    asked on April 2, 2019
  19. Special topics in guidance

    Which of the following statements is true about self-concept A. It includes those behaviors that allow us to control our impulses. B. It refers to the knowledge that a child acquires about himself. C. It's the evaluation that a child makes about her

    asked on April 22, 2019
  20. Math

    Find an equation of the line containing the points (-6,19) and (-15,28)

    asked on February 17, 2012
  21. Math

    Carmen works at Chipotle for $11.25 per hour plus a commission of 2% of her sales. Assuming Carmen worked 26 hours last week and had sales of $2,610, what's her gross pay? A. $ 342.00 B. $ 290.50 C. $ 344.70 D. $ 351.20 my answer is C.

    asked on October 6, 2019
  22. Physics

    A water reservoir in the form of a cone mounted on a hemispere is built such that the plane face of the hemisphere is built fits exactly to the base of the cone and the height of the cone is 6 times the radius of its base. (a) Illustrate this information

    asked on June 23, 2019
  23. English

    Both Ada and Phil are evaluating their thesis statements, topic sentences, and evidence. If Ada finds that her essay doesn't have a thesis statement identifying the topic of the essay, Ada will reread the essay and decide what the main point of the essay.

    asked on April 9, 2015
  24. physics : different question

    Rank the automobiles based on the magnitude of the force needed to stop them, from largest to smallest. 2000 kg car going 5m/s 500 kg car going 20 m/s 1000 kg car going20m/s 500 kg car going10m/s 1000 kg car going10/s 4000 kg car going 5m/s

    asked on March 8, 2011
  25. math

    Alice wants to know how much she'll have to invest today to receive an annuity of $10,000 for six years if interest is earned at 7% annually. She'll make all of her withdrawals at the end of each year. How much should she invest? A. $45,000 B. $47,665 C.

    asked on December 5, 2019
  26. math

    Tamra is having difficulty deciding whether to put her savings in the Albina Community Bank or in the Umpqua Bank. Albina offers a 12% rate compounded quarterly, and Umpqua offers 14% compounded semiannually. Tamra has $40,000 to invest and expects to

    asked on September 15, 2019
  27. Math

    10. To find LCD by prime numbers, you should A. continue division until no prime number will divide into at least three numbers. B. take numerators and arrange in a row. C. divide numerators by the highest prime number. D. first take denominators and

    asked on July 28, 2019
  28. physics

    three spheres, each with a negative charge of 4.0*10^-6 C, are fixed at the vertices of an equilateral triangle whose sides are 0.20m long. Calculate the magnitude and direction of the net force on each sphere. So far i have drawn a diagram and used the

    asked on February 9, 2011
  29. Special topics in guidance

    14. Which of the following most accurately describes self-awareness? A. It's the evaluation that a child makes about her "self." B. It includes those behaviors that allow us to control our impulses. C. It refers to viewing the self as separate from others.

    asked on April 28, 2019
  30. Guiding young children

    12. Lily sidled up to another child at the water table and grabbed the toy with which the child was playing. Lily has demonstrated A. mesocentrism. B. allocentrism. C. sociocentrism. D. egocentrism. My answer is D.

    asked on April 6, 2019
  31. Early Childhood Education

    1. A boy in your class says, "Only girls clean things up." You respond, "In our classroom, everyone puts things away and cleans things." By saying this, you help this child A. rely on adherence. B. assimilate this new information. C. ignore this new

    asked on April 1, 2019
  32. maath

    The accompanying tree diagram represents a two-stage experiment. (Let x = 0.45, y = 0.55, r = 0.65, s = 0.35, t = 0.4, and w = 0.6.) Use the diagram to find the following probabilities. (Round your answers to three decimal places.) (a) Find P(A) · P(D |

    asked on October 17, 2012
  33. chemistry

    Aluminum metal is exposed to atmospheric oxygen, it is oxidized to form aluminum oxide. How much heat is released by the complete oxidation of 24.2 grams of aluminium at 25°C and 1atm.

    asked on October 13, 2012
  34. Physic

    If the coefficient of static friction for tires on a road is 0.25, at what maximum speed can a car round a level 47.5 m radius curve without slipping?

    asked on January 3, 2011
  35. math

    . The bank statement of July 31 for Walgreens showed a balance of $6,008.10, and the checkbook showed a balance of $1,900.40. The bookkeeper of Walgreens noticed from the bank statement that the bank had collected a note for $666.66. There was a deposit in

    asked on August 26, 2019
  36. Math

    At Costco, a flat-screen television with a regular price of $1,790 was reduced by $395. Assuming 800 customers purchased the television, what were the total sales to Costco? A. $1,160 B. $1,161,000 C. $1,116,000 D. $116,000 my answer is C.

    asked on July 29, 2019
  37. History

    Question 7(Multiple Choice Worth 6 points) (07.05 LC) Which statement best explains Henry David Thoreau's idea of civil disobedience? Taxation without representation is unfair and must be resisted. The government must serve the people, not the other way

    asked on February 27, 2018
  38. Types of Business Writing

    Assigment: write a business letter according to the background. Background:Assume that you’ve worked for the last five years as an administrative assistant for the Human Resources Department of Broadworth General Hospital. The Director of Human

    asked on September 22, 2013
  39. math

    a bag contains 3 blue marbles , and 9 green marbles , and 11 yellow marbles . Twice you draw a marble and replace it . Find P(blue then green) a) 27/529 b) 27/23 c) 15/529 d) 12/23

    asked on May 9, 2013
  40. Math

    5. Alice subscribes to the symphony. The cost is $295.55 for 32 performances. If Alice sells you four tickets, what will they cost you? Use the rounded average cost per ticket in your calculation. (Round to the nearest cent.) A. $39.96 B. $36.96 C. $33.96

    asked on July 28, 2019
  41. Child, family and community

    4. Which of the following best describes discipline? A. It works all the time with every child if you find the right method. B. It must be harsh to work. C. It's nearly the same as guidance. D. It should be avoided. My answer is D.

    asked on July 9, 2019
  42. early childhood

    Kindergarten children arrive at school and go directly to their room. They check in and go directly to centers. This method of arrival A. is a waste of the children's and teacher's valuable time. B. uses direct guidance. C. helps the children develop

    asked on May 26, 2019
  43. Special topics in guidance

    The caregiving style least likely to help children develop positive self-esteem is the _______ style. A. uninvolved B. indulgent C. authoritative D. authoritarian My answer is D.

    asked on April 23, 2019
  44. chemistry

    A solution that contains 55.0 g of ascorbic acid (Vitamin C) in 250. g of water freezes at −2.34°C. Calculate the molar mass (in units of g/mol) of the ascorbic acid. Kf of water is 1.86°C/m.

    asked on September 8, 2010
  45. Math

    Martina made deposits of $2,000 at the beginning of each year for four years. The rate she earn is 5% annually. What's the value of Marina's account in four years? a. $8,260.00 b. $11,051.00 c. $9,051.20 d. $8,260.20 My answer is D.

    asked on November 10, 2019
  46. Special topics in guidance

    Josh looked at his block structure and said to the teacher, "I can't finish the tower because Sam took all the skinny blocks. He said he'd punch me if I tried to get them back." This reflects the _______ "building block" dimension of self-esteem. A. worth

    asked on April 29, 2019
  47. Special topics in guidance

    Describing oneself by using moral principles such as honesty, kindness, and fairness is called A. self-esteem. B. self-concept. C. self-awareness. D. moral identity. my answer is D.

    asked on April 28, 2019
  48. Guiding young children

    5. A teacher or parent who requires unquestioning obedience would most likely be classified as A. indulgent. B. authoritative. C. uninvolved. D. authoritarian. my answer is D.

    asked on April 2, 2019
  49. Guiding young children

    3. A child exhibits self-control when he or she _______ gratification. A. repudiates B. achieves C. postpones D. demands my answer is C.

    asked on April 2, 2019
  50. Math

    Please help IF I am right or not Which of the following correctly simplifies the expression 3 to the power of 2 multiplied by 5 to the power of 0 whole over 4, the whole squared.? 3 to the power of 2 multiplied by 1 whole over 4, the whole squared. = 3 to

    asked on March 6, 2018
  51. Physics

    From top of a tower 160 m high a body is projected upwards with a velocity of 40 m/s making an angle of 30° with the horizontal. Find the time it will take to reach the ground

    asked on September 16, 2016
  52. English

    Reading your draft aloud, using peer review, and using a typed and printed copy are all examples of A. points of view. B. useful techniques for revision. C. patterns of development. D. graphic organizers. my answer is b.

    asked on April 11, 2015
  53. Chemistry

    How many moles of ammonia gas can be formed from the complete reaction of 44.8 liters of nitrogen gas at standard temperature and pressure (STP), according to the balanced equation, N2 (g) + 3H2 (g) arrow 2NH3 (g)?

    asked on March 13, 2014
  54. Algebra

    Two less than three-fourths of a number is ten. What is the number?

    asked on May 24, 2011
  55. math

    how many batting lineups of the nine players can be made for a baseball team if the cathcher bats first, the shortstop second and the pitcher last?

    asked on July 29, 2009
  56. Math

    Given the following information, calculate the amount credited and the outstanding balance. Invoice: $1,000 Terms: 3/10, n/30 Invoice date: May 5 Payment amount: $800 Date paid: May 9 A. $724.74, $275.26 B. $824.74, $175.26 C. $265.26, $624.74 D. $176.00,

    asked on September 30, 2019
  57. Art

    While discussion the pictures in a book, students ask their teacher many questions about the technique used to create such distinct pictures. Noticing the interest of the students, how can the teacher best address the interest in art? a. Suggest that they

    asked on September 2, 2019
  58. early childhood

    _______ parents and teachers believe that they must create a safe and secure emotional climate for children. A. Authoritarian B. Indulgent C. Uninvolved D. Authoritative my answer is D.

    asked on June 2, 2019
  59. Special topics in guidance

    Which of the following is recommended as "real help" for children who are teasers? A. Focus on perspective-taking B. Counting to ten C. Making them apologize D. Taking a time-out My answer is C.

    asked on April 29, 2019
  60. Special topics in guidance

    Stress that originates within the child would be considered _______ stress. A. external B. internal C. healthy D. lingering My answer is B.

    asked on April 22, 2019
  61. Special topics in guidance

    What interaction most frequently elicits anger in young children? A. Conflict over possessions B. Social rejection C. Verbal assault D. Physical assault My answer is A.

    asked on April 22, 2019
  62. Direct and indirect guidance

    When a teacher says, "Dennis, please put the baseball equipment away before you leave the playground," the teacher has asked for _______ compliance. A. threatening B. task C. attentional D. contact my answer is B.

    asked on April 7, 2019
  63. Guiding young children

    Janelle practices her spelling words several times until she remembers how to spell each word. What memory strategy has she just used? A. Restoration B. Rehearsal C. Retrieval D. Organization E. none of these My answer is B.

    asked on April 6, 2019
  64. Science

    A_______________ is a group of similar cells that perform a specific function in and organism ___________ are nerves cells that carry response information to muscles and organs Carbon dioxide and_________ are outputs of cellular respiration

    asked on November 7, 2017
  65. Geometry

    Find r if T.A=12Pi and L.A =8Pi

    asked on January 6, 2016

    I also need help in this please: Suppose the original sample is unknowingly contaminated with a second anhydrous salt. Will the reported percent water in the hydrated salt be too high, too low, or unaffected by its presence? Explain. is it low? if so, can

    asked on October 6, 2015
  67. Science

    What is the density of a substance with a mass of 0.0450 kg and a volume of 26.4 ml

    asked on June 10, 2015
  68. calculus

    Evaluate the improper integral or state that it diverges: integral from 6 to infinity (1/t^2-5t)dt. I need help on solving this and what does it mean by converges and diverges?

    asked on March 20, 2014
  69. Chemistry

    How many moles of atoms are in one mole of AlPO4?

    asked on January 22, 2012
  70. chemistry

    A 116.9 g sample of nitric acid solution that is 70.0% HNO3 (by mass) contains how many moles of HNO3? how did you get the answer

    asked on December 5, 2011
  71. Chemistry

    How many hours will it take to produce 78.0 g of Al metal by the reduction of Al3+ in an electrolytic cell with a current of 2.00 Amperes? [Enter only a number for your answer.]

    asked on November 15, 2010
  72. Chemistry

    Explain why ethanol is not soluble in cyclohexane. Also, how do you figure out whether something is polar or nonpolar?

    asked on September 19, 2010
  73. chemistry

    In the course of research, a chemist isolates a new compound with an empirical formula C3H3O2. 4.97 g of the compound when dissolved in 100. g of water produces a solution with a freezing point of −0.325°C. What is the molecular formula of the compound?

    asked on September 8, 2010
  74. college

    what is another name for herpetologist? is it zoologists? thanks.

    asked on September 23, 2008
  75. Chemistry

    When iron(3) oxide reacts with carbon , what is the limiting reactant? 2Fe2O3+3C=4Fe+3CO2

    asked on March 11, 2020
  76. math

    Dividends in arrears means that A. commune stockholders have been paid but not preferred stockholders, B. common stockholders must receive additional dividends not paid, CAN. a specific amount of dividends hasn't been paid, D. no pay dividends have been

    asked on November 30, 2019
  77. Art

    Teachers need to supply a range of materials for young children because the materials a. enable teachers to demonstrate their use b. provide a systematic means of assessment c. are consumable and must be replace often d. support children;s growth my answer

    asked on September 8, 2019
  78. math

    A new computer sells for $ 699.00 on a eBay.The markup is 30% on cost. What's the total cost of the computer sale.a. $ 490.00, B. 908.70, c. $ 489.30,. D. $ 537.69 my answer is B.

    asked on September 5, 2019
  79. Math

    Setting a price on perishable items does not include calculating a. A selling price per dozen, b.by. the total cost, c. the total selling price, d. a selling price per day my answer is D.

    asked on September 5, 2019
  80. Psychology

    7. Jason figures out that if he pulls a chair to the counter, he can reach the cookies that his mother placed on the counter. His is an example of which element of cognitive development? A. Planning B. Self- monitoring C. Problem solving D. Evaluating my

    asked on August 25, 2019
  81. art music and movement

    Jason figures out that if he pulls a chair to the counter, he can reach the cookies that his mother placed on the counter. His is an example of which element of cognitive development? A. Planning B. Self- monitoring C. Problem solving D. Evaluating my

    asked on August 19, 2019
  82. Math

    Natalie puts down $800 on a car. Natalie still owes 90% of the purchase price. What was the price she bought the car for? (Round to the nearest hundredth or hundredth percent as needed.) A. $12,000 B. $720 C. $8,000 D. $6,000 My answer is A.

    asked on August 5, 2019
  83. math

    Tumblr's stock price is $38 per share. Anjie purchased 600 shares. Assuming a broker's commission of $0.10 per share to purchase the 600 shares, what was Anjie's total cost? A. $23,400 B. $22,800 C. $22,860 D. $22,740 My answer is B.

    asked on July 29, 2019
  84. Child care and family

    When early childhood professionals have concerns about a child's development, what should they do? A. They should never approach the parent about concerns. B. The early childhood professional should make observations, which can help clarify and document

    asked on July 17, 2019
  85. Finance

    Question: Develop a valuation for Facebook. Make sure to utilize the full valuation framework from the EI textbook. Also, consider Zynga’s contribution to the valuation and the industry competitive landscape. Be sure to discuss the relevant variables and

    asked on July 10, 2019
  86. child, family and community

    5. How can adults promote gender equity? A. Giving children names that are non-gender-specific (like Chris) B. Setting up spaces in the classroom for girls only and other spaces for boys only C. Becoming aware of how language usage relates to power

    asked on July 8, 2019
  87. Maths

    Find the equation of the perpendicular bisector of the line joining the points (3,8) and (2,-5)?

    asked on June 23, 2019
  88. early childhood

    Which of the following statements is true of the decision-making model? A. It enables one to avoid making decisions. B. It takes a hesitant approach to making decisions. C. It strives to avoid getting caught up in emotion. D. It strives for a high level of

    asked on May 27, 2019
  89. physics

    a 25 kg boy on a 10 kg sled is coasting at 3.0 m/son level ice toward 30kg sister the girls jumps vertically and lands on her brothers back what is the final speed of the siblings and sled? neglect friction

    asked on April 30, 2019
  90. Special topics in guidance.

    The self is a _______ structure that children construct. A. biological B. physiological C. mental D. symbiotic my answer is C.

    asked on April 29, 2019
  91. direct and indirect guidance

    Jenny's mom handed her a block and told her, "Here, Jenny. Take the block." Jenny's mom has asked for _______ compliance. A. task B. attentional C. contact D. threatening My answer between C and A. C is because mom makes a direct contact. Or A. mom gives a

    asked on April 17, 2019
  92. Human Development

    Jed was born with a congenital heart defect that results in a weak pulse. His mother is constantly worried about his health. Which of the following is the most sound basis for her concern? A. The weakened heart may not provide adequate pressure to

    asked on October 28, 2018
  93. Physics

    A cubic block initially at rest slides with a constant acceleration on an inclined plane 10m long in 2s. Calculate the acceleration of the block.

    asked on February 21, 2017
  94. Chem

    What are the systematic names of these ? 1. CuI (s) 2. CoF2 (s)

    asked on September 21, 2015
  95. Precalc Math

    The question says express each repeating decimal as a fraction: 5.23232323 This is my work but my answer doesn't seem right: 100x= 523.23232323 - 10x= 52.23232323 90x= 470.909090 / 90x. \90x x= 5.23232323 What am I doing wrong? And how am I suppose to know

    asked on September 3, 2015
  96. mathematics :geometric progression

    The first three terms of a geometric progression are K-3,2K-4,4K-3 in that order find the value of K and the sum of the first 8 terms of the progression

    asked on June 30, 2015
  97. Science Help Plzz

    1. The images above show particles in a medium. Which of the following shows the worst conditions for a sound wave travel? A B C D is the answer A? Which of the following correctly describes a radio wave? A long wavelength and high frequency B long

    asked on June 2, 2015
  98. english

    To compose strong, compelling sentences, avoid using A. clauses as modifiers. B. forms of the verb to be. C. dependent clauses. D. short, simple sentences. my answer is b.

    asked on April 11, 2015
  99. English

    Which of the following sentences uses a coordinating conjunction in a compound sentence? A. The budget payment is much higher than we anticipated, but the price of heating oil has skyrocketed this year. B. Out in the yard, the children shouted loudly and

    asked on April 11, 2015
  100. biology

    Pls how can i itemize the blood cells in litres

    asked on March 2, 2015


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