Diana

Most popular questions and responses by Diana
  1. 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
  2. Math

    A researcher tagged 40 giant turtles in 2008. In 2009 , she returned and captured 50 turtles , 16 of which were tagged. In 2010 , she returned again and captured 30 turtles , 8 of which were tagged. a) Use a proportion to estimate the turtle population for

    asked on May 6, 2013
  3. Chemistry

    Three colorless solutions in test tubes, with no labels, are in a test tube rack on the lab bench. Lying beside the test tubes are three labels: potassium iodide, KI, silver nitrate, AgNO3, and sodium sulfide, Na2S. You are to place the labels on the test

    asked on October 10, 2015
  4. Algebra

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

    asked on May 24, 2011
  5. CHEMISTRY

    sorry! this is the full question: Two samples of sodium chloride were decomposed into their constituent elements. One sample produced 1.78 g of sodium and 2.74 g of chlorine. Which of the following could be the results of the decomposition of the other

    asked on September 24, 2015
  6. 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
  7. chem

    which of the following are mixtures? 1. air (mostly n2 and o2) 2. salt (NaCl) 3. Salt Water 4. Water (h20) is the answer 4 and 2 ?

    asked on September 3, 2015
  8. English

    Nathan argues that each paragraph in a narrative should support the author's thesis. Nan says that paragraphs in a narrative should illuminate some part of the action. Which one is correct? A. Neither Nathan nor Nan is correct. B. Both Nathan and Nan are

    asked on April 9, 2015
  9. math

    Which is the best display for the set of the number of tornadoes in the United States each year , If you want to be able to identify the mode? a) histogram with intervals of b) frequency table with intervals of 3 c) line pot d) line graph

    asked on May 6, 2013
  10. English

    Which of the following techniques would be best used to present constructive feedback on a draft of an essay to a peer? A. Rewrite sections for your peer B. Only write notes on the things you like about it C. Point out the negative aspects so your peer can

    asked on April 11, 2015
  11. 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
  12. 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
  13. 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
  14. 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
  15. 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
  16. 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
  17. Physics

    Two plane mirrors are positioned at right angles to one another. A ray of light strikes one mirror at an angle of 30° to the normal. It then reflects toward the second mirror. What is the angle of reflection (from the normal) of the light ray OFF the

    asked on April 17, 2015
  18. english

    What is the sequence of components in the following sentence? Listless and depressed by vistas of snow and gray skies, Dieter left the cabin and walked toward the frozen pond. A. Subject, modifier, verb B. Subject, verb, modifier C. Modifier, subject, verb

    asked on April 11, 2015
  19. Chem

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

    asked on September 21, 2015
  20. chemistry

    A flask contains 0.260 mol of liquid bromine, Br2. Determine the number of bromine molecules present in the flask. Express your answer numerically in molecules.

    asked on August 16, 2016
  21. chemistry

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

    asked on May 1, 2011
  22. English

    Which of the following sentences shows an example of parallel verbs? A. Once the game was over, Jim had to be running home and eat dinner. B. Once the game was over, Jim had to run home and dinner was ready. C. Once the game was over, Jim had to run home

    asked on April 9, 2015
  23. math

    Peyton has two pizzas.Each pizza is cut into 10 equal slices.She and her friends eat 14 slices. What part of the pizzas did they eat? Write your answer as a decimal.

    asked on April 22, 2014
  24. 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
  25. Chemistry

    A sample of Manganese (II) Chloride has a mass of 19.8 grams before heating, and 12.6 grams after heating until all the water is driven out. Based on this information, how many water molecules were attached to each molecule of Manganese (II) Chloride?

    asked on January 22, 2012
  26. 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
  27. 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
  28. 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
  29. 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
  30. Chemistry

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

    asked on January 22, 2012
  31. 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
  32. 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
  33. physics

    The leg and cast weigh 200 N, with the center of mass as indicated by the blue arrow in the diagram. The counterbalance w1 weighs 105 N. Determine the weight w2 and the angle α needed so that no force is exerted on the hip joint by the leg plus cast.

    asked on October 12, 2011
  34. CHEM

    What concentration of Cl– results when 993 mL of 0.521 M LiCl is mixed with 883 mL of 0.309 M MgCl2? PLEASE HELP! I don't know how to set this up

    asked on October 22, 2015
  35. chem

    The crucible is handled with oily fingers after its mass measurement but before the 3 gram sample of the hydrated salt is measured. Subsequently, in part B.1, the oil from the fingers is burned off. Will the percent water in the hydrated salt be reported

    asked on October 7, 2015
  36. Physics

    a 10 kg gun recoils with a speed of 0.1 meter per second as it fires a 0.001kg bullet. what is the speed of the bullet as it leaves the gun

    asked on January 13, 2011
  37. Physics

    A 520 N cat burglar is supported by cables in the figure below. Assume the angle θ of the inclined cable is 32.0°. Find the tension in each cable. (Inclined, vertical, and horizontal)

    asked on October 20, 2010
  38. Chemistry

    Calculate the amount of water (in grams) that must be added to (a)5.00 g of urea (NH2)2CO in the preparation of a 16.2 percent by mass solution, and (b)26.2g of MgCl2 in the preparation of a 1.5 percent by mass solution.

    asked on September 19, 2010
  39. Special topics in guidance

    Luke is riding a bike. Gene wants the bike and tries to push Luke off. Gene is showing which of the following types of aggression? A. Mild B. Instrumental C. Hostile D. Accidental My answer is B.

    asked on April 22, 2019
  40. 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
  41. 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
  42. Child, Family and community

    A caregiver who is in tune with and responsive to a baby's _______ can be said to have a synchronous relationship with the baby. A. attachment B. trust C. signals D. relationship my answer is C.

    asked on July 1, 2019
  43. child, family and community

    Erik Erikson named the psychosocial stages of development concerning the early issue of A. trust. B. patterns. C. theory. D. attachment. My answer is D.

    asked on July 2, 2019
  44. Child, family and community

    Which of the following statements is true? A. Studying child development without regard to context is best because it's easier to understand. B. Contexts are environments or settings that hold people. C. Every context is embedded in a web of unchanging

    asked on July 2, 2019
  45. CHEMISTRY

    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
  46. chemistry

    suppose that you have a micro pipet which delivers 100 drops per cubic centimeter, and a solution of 5.0% by volume of oil in alcohol. if you had used 10 drops of this solution, how many cubic centimeters of pure oil would be left after evaporation of the

    asked on September 18, 2016
  47. 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
  48. Chemistry

    Give the oxidation state for the metal ion in each of the following compounds, respectively: K2O,CaO,TiO2,V2O5

    asked on February 16, 2017
  49. 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
  50. English

    Which of the following is an evaluation tool using questions and answers that lead to effective strategies? A. Thesis B. Outline C. Flowchart D. Graphic organizer my answer is c.

    asked on April 9, 2015
  51. 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
  52. Child, Family and community

    A person cannot have his or her needs for _______ met until physiological and safety needs are met. A. protection B. activity C. food D. recognition My answer is C.

    asked on July 1, 2019
  53. Child, family and community

    10. When is it appropriate to ignore a child's behavior? A. When the parent is in the room B. When it's an attention-seeking behavior C. When the teacher is busy D. When the other children are busy my answer is B.

    asked on July 8, 2019
  54. child, family and community

    Two-year-old Jenna refuses to open her mouth while being fed. Jenna's behavior is an example of A. inferiority. B. basic mistrust. C. autonomy. D. guilt. My answer is C.

    asked on July 2, 2019
  55. 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
  56. 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
  57. Child, family and community

    15. According to the textbook, people with high self-esteem are A. intelligent. B. financially motivated. C. extrinsically motivated. D. intrinsically motivated. My answer is D.

    asked on July 9, 2019
  58. CHEMISTRY

    is this right? 5. After heating the crucible is set on the lab bench where it is contaminated with the cleaning oil used to clean the lab bench but before its mass is measured. The analysis continues where the mass of the anhydrous salt is determined.

    asked on October 6, 2015
  59. Child, family and community

    9. _______ is/are important time(s) for free play, teamwork, problem solving, and self expression. A. Gym class B. Recess C. Intramural sports D. Playing tag My answer is C.

    asked on July 7, 2019
  60. 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
  61. statistics

    There were 50 men and 50 women who were randomly selected from a larger population. •A t-test was conducted to compare men and women’s performance on an assessment after eating chocolate. The results showed an independent t-test value of t .05(99) =

    asked on December 29, 2014
  62. 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
  63. 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
  64. 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
  65. 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
  66. Child, family and community

    Constant _______ from upset feelings is not an effective way to help children grow emotionally. A. freedom B. distraction C. separation D. autonomy My answer is C.

    asked on July 1, 2019
  67. Art

    A classroom music laboratory should emphasize a. memorizing facts about famous musicians and their work b. following the classroom rules c. active involvement, a chance to explore and experiment d. rhythm activities that require children to imitate a

    asked on September 3, 2019
  68. 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
  69. Human Development

    During the sensorimotor stage of development, infants take information from new experiences and integrate it with the already existing information. This process is called A. intelligence. B. accommodation. C. attachment. D. object permanence. my answer is

    asked on November 1, 2018
  70. 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
  71. Maths

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

    asked on June 23, 2019
  72. English

    During revision, you should scan your paper for _______ words and replace them with concrete words or phrases. A. figurative B. general C. formal D. informal my answer is b.

    asked on April 9, 2015
  73. child,family and community

    The Harlem Children's Zone is an example of an educational program that uses a _______-centered approach. A. community B. culture C. student D. family My answer is D.

    asked on July 1, 2019
  74. 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
  75. Math

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

    asked on February 17, 2012
  76. math

    a person with no more than $15,000 to invest plans to place the money in two investments. one investment is high risk, high yield: thfe other is low risk, low yield. at least $2,000 is to be plaaced in the high-risk investment. furthermore, thfe amount

    asked on September 7, 2009
  77. 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
  78. Child, family and community

    17. Which of the following is an acceptable way to express feelings, regardless of one's culture? A. Taking out anger out on your sister by biting her B. Yelling, screaming, and throwing objects C. Using direct verbalization and I-messages D. Name calling

    asked on July 9, 2019
  79. Child, family and community

    1. Despite being told by his mother to pick up his stuffed animal, four-year-old Jack leaves it on the floor. Jack's dog chews up the stuffed animal. This scenario is an example of A. a logical consequence. B. discipline. C. redirected energy. D.

    asked on July 9, 2019
  80. 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
  81. Art

    By asking questions such as, "Look at the lines on your paper and on the ceiling. Can you find other lines? Thin lines? Thick lines? " a teacher is building children's conception of a. depth perception b. creativity c. perspective d. an artistic element my

    asked on September 3, 2019
  82. 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
  83. Child, famiy and community

    19. The _______ group is an agent of socialization even for young children. A. tracking B. ability C. peer D. kindergarten My answer is D.

    asked on July 7, 2019
  84. 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
  85. Math

    The price of an LG flat-screen decreased by ½. If the original price was $2,400, what's the price today? A. $1,000 B. $1,800 C. $1,500 D. $1,200 My answer is D.

    asked on July 28, 2019
  86. 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
  87. 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
  88. English

    Which of the following sentences uses concrete language? A. Danny's Labrador retriever eagerly chases tennis balls. B. When I saw Susan, she was reading a book. C. Jerry saw that the glass was really dirty. D. I met Cathy at a store on a street near the

    asked on April 9, 2015
  89. 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 5, 2019
  90. Child, family and community

    A child sucking his thumb is an example of A. coping with fear. B. problem solving. C. coping with simultaneous feelings. D. a self-calming skill. My answer is D.

    asked on July 9, 2019
  91. 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
  92. Art

    ____ enables children to act out social situations and express feelings informally. a. Dramatic play b. Reader's theater c. Puppets d.Story or interpretative play My answer is C.

    asked on September 2, 2019
  93. Child, family and community

    13. Which dimension of self-esteem is essential to being a good person? A. virtue B. power C. significance D. competence My answer is A.

    asked on July 8, 2019
  94. Guiding young children

    7. An authoritative communication style includes all of the following except A. validation. B. blaming. C. honesty. D. nurturance. My answer is B.

    asked on April 2, 2019
  95. Calculus

    Find the area of the indicated region. We suggest you graph the curves to check whether one is above the other or whether they cross, and that you use technology to check your answer. Between y = x^2 − 4x + 1 and y = −x^2 + 4x − 5 for x in [0, 3]

    asked on August 1, 2016
  96. art

    Powders used to make art materials, such as flower or plaster of Paris, can be dangerous to students with which of the following health problems? a. Asthma b. ADHD c.Dyslexia d. Diabetes my answer is A.

    asked on September 2, 2019
  97. 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
  98. 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
  99. english

    Which of the following techniques would be best used to present constructive feedback on a draft of an essay to a peer? A. Rewrite sections for your peer B. Only write notes on the things you like about it C. Point out the negative aspects so your peer can

    asked on April 11, 2015
  100. Physics

    what quantity of heat will be necessary to change 4k of ice at 0degree to water at 3 degree?(specific latent heat of fussion of ice =3.36×10^5j/kg, specific heat capacity of water=4200 j/kg.?

    asked on June 21, 2019

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