1. Chemistry

    What should be the number of significant figures in the following calculation? It's an error calculation which is absolute value (True value - experimental value) / true value * 100 so it would be: absolute value [-601.7 - (-587)] / -601.7 * 100 Should the
  2. Proofread!!

    This is my conclusion to my persuasive paper please check my grammar. As one can see there are many benefits and advantages of going to college. College gives one the opportunity to question everything and teaches one how to think on their own. College
  3. English 11

    How do disscuss the style of an article? *we have to read and analyze 10 columns related to our capstone project froma reputable journalis/ columnist published in a reputable newspaper, magazine, or blog. **for our 3rd and 4th paragraph the paprer told us
  4. English

    Read the following selection from “Winter Mist” by Robert Palfrey Utter. Then, answer the questions that follow. I like pond skating best by moonlight. The hollow among the hills will always have a bit of mist about it, let the sky be clear as it may.
  5. English

    Which excerpt from Robert Burns’s “To a Mouse” best conveys understanding and forgiveness? “…An’ weary winter comin’ fast,/An cozie here, beneath the blast…”<<< “Thy wee-bit housie, too, in ruin!/Its silly wa’s the win’s
  6. Science

    Earthquakes and Seismic Waves •If the statement is true right true if the statement is false change the underlined word or words(I’ll put them in parentheses) to make this statement true.• 1.______The shaking and trembling that results for movement
  7. Math Check Pleas Thank You

    1. Which of the following numbers is an example of an integer? ­15 * 0.252525 . . . 3/5 (fraction) Square root of 7 2. Which statement is false? Every integer is a real number. The number zero is a rational number. Every irrational number is a real
  8. phy

    In an urn, there are several colored balls, with equal numbers of each color. We add 14 balls which are all of the same new color, that is different from those in the urn. It is calculated that the probability of drawing, without replacement, two balls of
  9. maths

    In an urn, there are several colored balls, with equal numbers of each color. We add 14 balls which are all of the same new color, that is different from those in the urn. It is calculated that the probability of drawing, without replacement, two balls of
  10. Probability and Statistics

    Can someone tell me what formula I should use? The number of milligrams of tar in filtered and unfiltered cigarettes is being compared. The following cigarettes are pulled to be part of the samples: Filtered: bunch of data Unfiltered: bunch of data The
  11. Math

    An airline has a plan in which a spouse can travel for 75% of the base cost of a ticket, and a child under 12 can travel for 50% of the base cost. a. Using the plan, what will it cost a married couple with three children under 12 to fly if the base cost is
  12. IPC

    Sometimes thermal energy and sound energy can be harnessed to do useful work. However, these types of energy dissipate rapidly. Thermal energy produced by friction cannot usually be used to do work. A) True B) False my question is; it says they can be used
  13. stat

    is this statement true? Hypothesis tests are dsigned to measure the amount of evidence that exists against the alternative hypothesis? Not in my experience. My experience is that hypothesis tests are designed to see if the hypothesis is true within some
  14. chemistry

    So we did an experiment where we mixed Cacl2 and NaCl and then found the mass of the precipitate. Then we compared it to reference data on a standard curve to see the mass of Na2Co3 reacting to produce the CaCo3. So what I'm stuck on is this: Suppose the
  15. SCIENCE HELP! SOMEONE!

    A student compared some chemical and physical properties of three pure substances. Her data are recorded in the chart above. What is a logical conclusion the student can draw about pure substances? A student compared some chemical and physical properties
  16. vocab-true or false

    True or False: 1. A subway breakdown at rush hour can rejuvenate hundreds of commuters 2. In the 19th century, workers were sometimes exploited by their employers. 3. Heavyweight boxers do not inflict any pain or injury on one another. go to keyword:
  17. math (please help)!

    Geometry ***(PLEASE CHECK MY ANSWER)*** 1. If triangle RST = triangle NPQ, which of the following is true? A.) ÚR = ÚP B.) ÚR = ÚQ C.) ÚT = ÚP D.) ÚT = ÚQ <----- My Answer! 2. Given triangle RST = triangle NPQ, RT = 7x - 5, NQ =
  18. US HISTORY

    Can anyonehelp me with these questions about World War II. True or false- Japan wanted to defeat Australia in WWII because of it strategic location. Many believe that the origins of WWII can be traced back to the terms of the document that they believed
  19. Physics

    An electron moves with speed 2.46 x 105 m/s in a 1.39-T uniform magnetic field. At one instant, the electron is moving due west and experiences an upward magnetic force of 2.81 x 10−14 N. Caculate the magnetic field (angle). What is the direction of
  20. chemistry

    Which of the following is NOT true for solutes and solvents? A. At least one solvent must be dissolved in a solute to make a solution. B. Solute concentration can be measured in terms of solute moles / solution volume or solute moles / solvent mass. C. A
  21. Astronomy

    The apparent brightness of a Cepheid variable star in a far-away galaxy is measured to be 640,000 times fainter compared to an equivalent star 2,000 light years away from the Sun in our Galaxy. Assuming that there is no light absorption between galaxies,
  22. world history

    I need to do a persuasive essay for my world history class on the Industrial Revolution and i want to know if it makes sense. The industrial revolution changed society. Its the reason why we're in the society we are in now. Before the industrial
  23. Quick English check

    Select the term that is best represented by each statement below. (The words are: admonish, advocate, bias, exposulate, influential, interaction, linguistic, susceptible, temperament, and wary.) 1. "I am a decided preference in favor of a particular side."
  24. Ethics

    1. Which of the following ethical frameworks suggests that morality should be linked to human nature, including a concern for human dignity and universal human rights? A. Utilitarianism B. Ethical egoism C. Social hedonism D. Natural law is it D 2. If the
  25. Chemistry

    Which of the following is NOT true about the thermodynamic standard state? A. A solid is in its standard state when the atmospheric pressure is 1.00 atm and the temperature is 25C. B. A pure liquid is in its standard state at 25C and a vapor pressure of
  26. English- Word Choice

    The general idea about war has always been a controversial subject that has sparked powerful opinions and emotions. We cant use the word always what is another word that I can replace it with? There are many different viewpoints about why war is considered
  27. statistics

    7. A recent study investigated the effects of a "Buckle Up Your Toddlers" campaign to get parents to use the grocery cart seat belts. When gathering baseline data prior to the campaign, investigators observed 86 out of 640 parents buckling up their
  28. Algebra 2

    Can someone please check these answers for me?? I'm pretty sure most of them are right, except for maybe the second T/F question... 1) T or F. The domain of y=ln x is equal to the range of y=e (superscript x). True 2) T or F. ln(3x x y to the 3rd power) =
  29. physics

    Two spherical objects are separated by a distance of 1.41 × 10^-3 m. The objects are initially electrically neutral and are very small compared to the distance between them. Each object acquires the same negative charge due to the addition of electrons.
  30. Phy 231

    A baton consists of a nearly massless rod of length L and two spheres attached to the end of the rod, whose masses are each M and whose centers are separated by L. The spheres have radius R. If the sphere radius R is not negligible compared to the length
  31. physics

    Two spherical objects are separated by a distance of 1.53 × 10-3 m. The objects are initially electrically neutral and are very small compared to the distance between them. Each object acquires the same negative charge due to the addition of electrons. As
  32. Health Help?

    1. A percentile rank represents the percentage of people who scored at or below the test score. True False 2. People who have high resting heart rates usually have high levels of cardiovascular fitness. True False 3. Resting heart rate is usually measured
  33. ea

    Q: penn foster examination number 02603600 1. Which learning technique is frequently used in the expository model of teaching? A. Deductive thinking C. Discovery learning B. Inductive thinking D. Knowledge-based learning my Answer..A 2. Which technique is
  34. English

    One easy question Which excerpt from Robert Burns’s “To a Mouse” best conveys understanding and forgiveness? “…An’ weary winter comin’ fast,/An cozie here, beneath the blast…”<<< “Thy wee-bit housie, too, in ruin!/Its silly
  35. child psychology

    Charles Darwin is considered a pioneer in the study of child psychology because he A. compared animal and human behavior in infancy. B.studied children at play. C. mainained a ''baby diary'' D. kept a detailed record of his wife's pregnancies. i believe
  36. physics

    The diagram represents a snapshot of a standing transverse wave on a flexible guitar string taken when the displacement is at a maximum. (Note: the vertical scale is very exaggerated, the actual sideways displacement of the string is negligibly TINY
  37. 8th grade English; Trouble with Television

    The Trouble with Television Robert MacNeil It is difficult to escape the influence of television. If you fit the statistical averages, by the age of 20 you will have been exposed to at least 20,000 hours of television. You can add 10,000 hours for each
  38. my thesis and revise two paragraphs

    my informative essay below include quotes. i asked my teacher if i have to write a reference of where i got them, but she said not to because she will know when she sees the quotation marks. anyways, here is the introduction i improvised and my second
  39. Biology

    Which phrase does NOT describe one of the functions of proteins of the plasma membrane? -forming a channel through the membrane -initiating the replication of the genetic material (CORRECT) -binding to a substance to carry it through the membrane -acting
  40. physics

    Compared to the number of radians in one revolution of a bicycle tire with a radius of 33 centimeters, the number of radians in one revolution of a go-cart wheel (radius = 22 centimeters) is:
  41. Math

    Varlos found that 1/2 of the apples in one basket are Granny Smith apples and 1/6 of the apples in another basket are Granny Smith apples. Which statement correctly compared the feactions?
  42. Spanish

    Hola Sra. I hope this looks okay thank you for your help. Write a 200-300 word essay on a cultural aspect of any Spanish speaking country. Salamanca es una ciudad maravillosa en el noroeste de España. Salamanca se dice que es la ciudad para aprender a
  43. math

    Write an inequality of the form x > c or x < c to represent the amount of trash cleaned up per mile of coast worldwide compared to the amount of trash cleaned up per mile of coast in England during the 2013 Ocean Conservancy’s International Coastal
  44. college

    How good is the University of Washington compared to Oregon State University? Does it matter where i go for undergraduate? I'm an Oregon resident but i really want to attend the UW after high school but that would put me in so much dept afterwards. Going
  45. College Physics

    As part of a training program, an athlete runs while holding 8.00 weights in each hand. As he runs, the weights swing through a 30.0 arc in . His hands are 72 from his shoulder joint, and they are light enough that we can neglect their weight compared with
  46. chemistry(check my work)

    Which of the following is NOT true of colligative properties? Colligative properties are... A. dependent on the mass of solute present. B. independent of the chemical identity of the solute. C. dependent on the molar mass of the solute. D. responsible for
  47. Geoligical Events-Writeacher

    The terms focus and epicentre are linked by the epicentre being found on the surface, directly above the focus. Is my answer correct. Geological Events - Writeacher, Tuesday, January 11, 2011 at 7:34pm Mostly correct. But in earthquakes, it's not always
  48. crt

    Fill in the blanks where called for, and answer true or false where appropriate. 1. Valid arguments are said to be strong or weak. 2. Valid arguments are always good arguments. 3. Sound arguments are ________ arguments whose premises are all ________. 4.
  49. stats

    Which test do you use to solve this problem One-sample or independent samples t-test? Over the summer I asked my statistics students to report their gender and their level of statistics anxiety. Using a one-tailed test, determine whether females have more
  50. stats

    Which test do you use to solve this problem One-sample or independent samples t-test? Over the summer I asked my statistics students to report their gender and their level of statistics anxiety. Using a one-tailed test, determine whether females have more
  51. World Geo

    which of the following natural hazards is not common to new zealand ability to produce goods in sufficient numbers to reduce the unit cost the first people to settle in new zealand wheat is australias most important export australia became a commonwealth
  52. Health And Physical Ed

    true or false the main process for digestion takes place in the stomach true false*** regular excersise stimulates_____which keeps the skeletal muscles moving to assist in digestion and excretion. peristalis ures digestion*** villi the main process of
  53. Chemistry

    The cloth shroud from around a mummy is found to have a carbon-14 activity of 8.1 disintegrations per minute per gram of carbon as compared with living organisms that undergo 15.2 disintegrations per minute per gram of carbon. From the half-life for
  54. Math

    Thomas walks his dog for 30 minutes today 15 more minutes than yesterday express as a percent his walking time today compared to his walking time yesterday round to the nearest percent 150 175 200 125
  55. history / ela

    In his famous speech at the March on Washington in 1963, Dr. Martin Luther King Jr. said, I have a dream that my four little children will one day live in a nation where they will not be judged by the color of their skin but by the content of their
  56. Stat 1

    A random sample of 10 miniature Tootsie Rolls was taken from a bag. Each piece was weighed on a very accurate scale. The results in grams were 3.087 3.131 3.241 3.241 3.270 3.353 3.400 3.411 3.437 3.477 (a) Construct a 90 percent confidence interval for
  57. 3-D Computer Modeling

    1. In the simplest terms, which of the following is 3-D modeling is all about? A. Computers B. Collaboration C. Creativity D. Shapes 2. Only animate objects can be made into three dimensions. A. True B. False 3. Nothing has revolutionized animation like
  58. Speech

    I have to give a speech soon about my different " sides" of my life. Like my school life and what I do at school compared to how I act as a sibling etc. But I'm stumped on what my visual should be. My teacher wants originality no power point or posters
  59. statistics

    Does studying for an exam pay off? The number of hours studied, x, is compared with the exam grade received, y. x 7 7 5 5 7 y 95 90 75 85 95 (a) Complete the preliminary calculations: SS(x), SS(y), and SS(xy). Incorrect: Your answer is incorrect. . (SS(x))
  60. Physics

    Two spherical objects are separated by a distance of 2.97 × 10-3 m. The objects are initially electrically neutral and are very small compared to the distance between them. Each object acquires the same negative charge due to the addition of electrons. As
  61. Statistics

    Does studying for an exam pay off? The number of hours studied, x, is compared with the exam grade received, y. x 7 7 5 5 7 y 95 90 75 85 95 (a) Complete the preliminary calculations: SS(x), SS(y), and SS(xy). Incorrect: Your answer is incorrect. . (SS(x))
  62. Chemistry

    All of the following are postulates of the kinetic molecular theory of gases except A. The gas molecules are in constant motion. B. The gas molecules are in rapid motion. C. The collisions between molecules are elastic. D. At a constant temperature, each
  63. Discrete math

    (a) Use the Euclidean Algorithm to nd gcd (2017; 271) and use this to nd integers x and y so that gcd(2017; 271) = 2017x + 271y. (b) Is it true that for all integers a and b, if not both a and b are zeros then not both
  64. Chemistry

    1. For the reaction 2N2O(g) ⇋ O2(g) + 2N2(g), what happens to the equilibrium position if the pressure decreases? A. Shift to the right B. Shift to the left C. Doubles D. Does nothing E. Halves 2. if an equilibrium reaction shifts to the right when
  65. MR SUE ASWER THIS GEOGRAPHY QUESTION!

    In 1945, at the end of world was II Japan was in economic ruin. Today it rivals in the industrial strength of the united states. Arecent newspaper article compared the employment attitudes of north american and japaneese auto workers. The article suggested
  66. Algebra

    1. What is the mapping of? Domain Range -3 3 -2 -6 -1 0, 15 0 -6 1 -1 I needed to represent these with arrows, but I can't. a. relation b. linear function c. all of these d. none of these Answer- none of these 2. Re-write 2x - 3y < 6 in slope intercept
  67. chemistry

    Which of the following safety precautions is unnecessary for the 'Mass Percent of ASA' experiment? A. 1M NaOH is basic and corrosive. Skin contact should be avoided. B. Do not ingest the aspirin used in this experiment as it may be contaminated with other
  68. CRT 205

    • Read the article “Controlling Irrational Fears After 9/11” on pp. 456–458 of Appendix 1. • Identify at least two arguments in the article. Outline the premises and conclusions of each argument you find. Then, answer the following questions for
  69. english/revise

    For more than twenty years, conflict between government forces and rebel group known as the Lord Resistance Army (LRA) has disrupted life for civilians in northern Uganda. Since 1986, the Lord Resistance Army has abducted as many as 20,000 boys and girls.
  70. Chemistry

    CFCs such as CF2Cl2 are refrigerants whose use has been phased out because their destructive effect on Earth's ozone layer. The standard enthalpy of evaporation of CF2Cl2 is 17.4 kJ/mol, compared with change in H(vapor)=41kJ/mol for liquid water. How many
  71. English

    Writeacher, I really hope you are there today because I have a lot of things to check. Thank you very much in advance. 1)It took many decades to build the capital. (True, False). In the extract it is said that "It took over 30 years to build the capital"
  72. chem

    Which of the following is NOT true about the thermodynamic standard state? A. A gas is in its standard state when its pressure is 1.00 atm and its temperature is 25C. B. An aqueous solution is in its standard state at a concentration of 1.00 M. C. A pure
  73. science

    Why does the Earth get more energy from the Sun compared to any other star? •The Sun is much closer to Earth. The next closest star is 4.2 light years away. **** • The Sun is much denser than other stars. That means it produces more energy. • The Sun
  74. physics

    A student, instead of using the effective mass for Si (1.18∗m(e)), uses the effective mass in Ge (0.22∗m(e)) to calculate density of states in Si. The student of course gets the wrong values. What is the ratio of the student's answer compared
  75. physics

    Two spherical objects are separated by a distance of 2.41 x 10-3 m. The objects are initially electrically neutral and are very small compared to the distance between them. Each object acquires the same negative charge due to the addition of electrons. As
  76. Chemistry

    Identify the true statement about Lewis structures. Select all the correct answers. 1. Hydrogen is usually surrounded by 4 electrons in a valid Lewis structure. 2. A single bond in a Lewis structure represents 2 electrons. 3. A double bond in a Lewis
  77. Physics

    How Many Capillaries? The aorta has an inside diameter of approximately 2.1 cm, compared to that of a capillary, which is about 1.0×10−5m (10 μm). In addition, the average speed of flow is approximately 1.0 m/s in the aorta and 1.0 cm/s in a
  78. religion

    I recently took a religion final and scored a 99.8% I think the question I got wrong is: What is an apologist? a- one who apologizes for sins b- an apostle c- some kind of writer???about???(I can't really remember this one) d- ????(can't remember) I put a-
  79. sociology

    How a person respond to this type of statement? I am not sure how I would respond to this statement. Do you have any suggestions to how one might respond? Is this true or a false statement? (I think it might be a true statement) We all hold different
  80. math

    You are skier A, the first skier in a skiing event with three other skiers. Compared to your time, skier B is slower, by a time of +00:28. Skier C has a time of +02:13, and skier D has a time of -01:24. Who is the fastest skier
  81. math

    You are skier A, the first skier in a skiing event with three other skiers. Compared to your time, skier B is slower, by a time of +00:28. Skier C has a time of +02:13, and skier D has a time of -01:24. Who is the fastest skier.
  82. Health--check my answers

    1. A percentile rank represents the percentage of people who scored at or below the test score. True False 2. People who have high resting heart rates usually have high levels of cardiovascular fitness. True False 3. Resting heart rate is usually measured
  83. Heath help Plz--5 questions

    1. A percentile rank represents the percentage of people who scored at or below the test score. True** False 2. People who have high resting heart rates usually have high levels of cardiovascular fitness. True ** False 3. Resting heart rate is usually
  84. english

    romeo and Juliet Act 1 scene 3 questions: 1. what impression does the audience get of Juliet in this scene? 2.what impression does the audience get of Juliet's nurse on this scene? 3.Explain the extended metaphor used by Lady Capulet (lines 80-95) what is
  85. Q&A Check Please, geo 7th grade

    The Missouri River flows southward to the Gulf of California. FALSE a lower area of land generally surrounded by mountains BASIN Summer ocean currents come in from the north. FALSE THE COAST OF CALIFORNIA Most of Canada and Alaska have a subarctic climate.
  86. Geometry

    1) What are the converse, inverse, and contrapositive of the statement? Which statements are true? If the figure is a rectangle with sides 2 cm and 3 cm, then it has a perimeter of 10cm. My A: the statement is not true. 2) What are the hypothesis and the
  87. Geometry

    1) What are the converse, inverse, and contrapositive of the statement? Which statements are true? If the figure is a rectangle with sides 2 cm and 3 cm, then it has a perimeter of 10cm. My A: the statement is not true. 2) What are the hypothesis and the
  88. Career

    1. A job objective should: (1 point) A.)Persuade the reader to hire you B.)State the position you are applying for C.)List your work history D.)Give reference information 2.)The second paragraph of a cover letter is your chance to: (1 point) A.)state why
  89. english - essay writing

    is it ok to use the word 'you' in a persuasive essay? As in: "Where else do you see desperate ladies act like crazed maniacs for a sad 15 minutes of fame, or as they’d like you to believe the love of.." yes sounds good so far thanks halida. =) could you
  90. English

    Which of the following topics is the clearest example of the "informative purpose"? A.) a newspaper article describing the outcomes of an election B.) a lengthy monologue by the lead character in a play C.) an advertisement for an amazing new product D.) a
  91. Math

    Meghan and Sabrina compared the amount of interest they each earned on their savings accounts. Each had deposited $1000, but Meghan earned $140 interest and Sabrina earned $157.50. Whose savings account had a higher interest rate? Explain.
  92. ELA

    is this a good introduction paragraph? "Although Juliet’s suitors Paris and Romeo are very similar on the outside, their thoughts and feelings are very different. Throughout “Romeo and Juliet” they are often compared. Romeo and Paris have differences
  93. "The Dream Comes True from The Tiger of the Snows"

    "The Dream Comes True from The Tiger of the Snows" by Tenzing Norgay. 1. Why do you think Norgay is so concerned with the "prestige of Everest"? A: I think Norgay is so concerned with the "prestige of Everest" because he thought it might be ruined by
  94. math

    sin x multiply by csc x= 1 true or false? sin x * csc x=1 is true this is because sin=opposite/hypotenuse and csc is the reciprocal identity of sin (1 over the sin) which is equal to hypotenuse/opposite Thus, when opp/hyp is multiplied by hyp/opp, both the
  95. Physics

    Consider the limit of large distances, where a finite charged rod is observed at a distance that is very large when compared to the length of the rod. In this situation, the electric field best resembled that of a ... point charge ... it goes like r^-2
  96. Chemistry

    Describe how you can show that a chemical reaction adhers to the law of conservation of mass. Chemical reaction: magnesium hydroxide added to phosphoric acid produces magnesium phosphate and water. Find the mass percentage of each compound as well as the
  97. biology

    the molecular weight of the protein is about 45 kilodaltons, and the molecular weight of glucose is about 180 daltons. jHow can you estimate the number of molecules of glucose in the 5% solution compared to the number of albumin molecules in its 5%
  98. Algebra

    1. The opposite of ¨C4 is (1 point) 4. ¨C4. ¨C(¨C(¨C4)). ¨C|4|. 2. The opposite of ¨C10 is (1 point) ¨C(¨C(¨C10)). ¨C10. 10. ¨C|10|. 3. Which symbol is used to make ¨C5 ? ¨C8 a true statement? (1 point) > < = ¡Ù 4. Which symbol is
  99. English

    Hi there. I'm from Poland and I'm studying English. I need some help with a True/False exercise. There's a piece of text and there's a question below it and you need to answer it with true or false. My query is especially aimed at English Teacher's and
  100. Physics

    2. Saturn has a radius of about 9.0 earth radii, and a mass 95 times the Earth’s mass. Estimate the gravitational field on the surface of Saturn compared to that on the Earth. Show your work. Answer: g= GM/r² G= 6.67 * 10^-11 Nm²/kg² ME= 5.98 * 10^24