Popular questions and responses by henry
  1. physics

    A typical arteriole has a diameter of 0.080 mm and carries blood at the rate of 9.6×10−5cm3/s. \ a. What is the speed of the blood in an arteriole? b. Suppose an arteriole branches into 8800 capillaries, each with a diameter of 6.0×10−6m.What is the

    asked on June 19, 2019
  2. Physics

    If the coefficient of kinetic friction between a 35 kg crate and the floor is 0.30, what horizontal force is required to move the crate at a steady speed across the floor? What horizontal force is required if μk is zero?

    asked on December 4, 2012
  3. History

    How was James I's rule of England similar to peter the great's rule of Russia? Both reduces the size of their empire. Both increased their own power without approval by other government entitles. Both relied heavily on the opinions of their subjects when

    asked on March 27, 2014
  4. AP Physics - Equilibrium

    Describe several situations in which an object is not in equilibrium even though the net force on it is zero. I can't think of a single one. I can think of the opposite (equilibrium with net force not being zero) but I don't get it the other way around.

    asked on October 29, 2009
  5. Calculus

    Use the graph of f(t) = 2t + 3 on the interval [-3, 6] to write the function F(x), where F(x)= ∫f(t) dt where a=3 b=x. F(x) = 2x^2 + 6x F(x) = 2x + 3 F(x) = x^2 + 3x + 54 F(x) = x^2 + 3x - 18 Honestly have no idea where to start. Do i take the derivative

    asked on February 23, 2016
  6. Calculus

    The graph of f ′(x) is continuous and decreasing with an x-intercept at x = 0. Which of the following statements is false? (4 points) The graph of f has an inflection point at x = 0. The graph of f has a relative maximum at x = 0. The graph of f is

    asked on February 20, 2016
  7. Calculus

    Pumping stations deliver gasoline at the rate modeled by the function D, given by D(t)= 6t/(1+2t) with t measure in hours and and R(t) measured in gallons per hour. How much oil will the pumping stations deliver during the 3-hour period from t = 0 to t =

    asked on February 21, 2016
  8. AP Physics Halley's Comet

    Halley's comet orbits the sun roughly once every 76 years. It comes very close to the surface of the Sun on its closest approach. Estimate the greatest distance of the comet from the sun. Is it still in the Solar System? What planet's orbit is nearest when

    asked on October 2, 2009
  9. AP Physics - Fluids

    A 6.0-cm diameter horizontal pipe gradually narrows to 4.0 cm. When water flows through this pipe at a certain rate, the gauge pressure in these two sections is 32 kPa and 24 kPa, respectively. What is the volume rate of flow? I know to use Bernoulli's

    asked on November 20, 2009
  10. Calculus

    Compare the rates of growth of f(x) = x + sinx and g(x) = x as x approaches infinity. f(x) grows faster than g(x) as x goes to infinity. g(x) grows faster than f(x) as x goes to infinity. f(x) and g(x) grow at the same rate as x goes to infinity. The rate

    asked on February 20, 2016
  11. Calculus

    Use differentials to estimate the amount of paint needed to apply a coat of paint 0.02 cm thick to a sphere with diameter 40 meters. (Recall that the volume of a sphere of radius r is V=(4/3)πr^3. Notice that you are given that dr=0.02.)

    asked on October 28, 2015
  12. English

    Could I get some check on my answers? Read these lines from Macbeth: The west yet glimmers with some streaks of day: Now spurs the lated traveller apace, To gain the timely inn; and near approaches The subject of our watch. Which of the following correctly

    asked on March 6, 2016
  13. Physics

    A skateboarder travels on a horizontal surface with an initial velocity of 4.4 m/s toward the south and a constant acceleration of 2.0 m/s2 toward the east. Let the x direction be eastward and the y direction be northward, and let the skateboarder be at

    asked on September 28, 2018
  14. Geometry

    Find AX in the diagram if CX bisects angle ACB. And then there's a diagram below with triangle ABC, where X is on line C, BC=45, AC=21, and BX=30.

    asked on April 20, 2017
  15. Calculus

    A particle moves along the x-axis with velocity v(t) = sin(2t), with t measured in seconds and v(t) measured in feet per second. Find the total distance travelled by the particle from t = 0 to t = π seconds. Do I have to take the integral of the equation

    asked on February 21, 2016
  16. Calculus

    Which of the following functions grows the slowest as x goes to infinity? x^e e^x ex they all grow the same rate. I think it is c because it does not have any exponents.

    asked on February 20, 2016
  17. Calculus

    f(x) and g(x) are a differentiable function for all reals and h(x) = g[f(2x)]. The table below gives selected values for f(x), g(x), f '(x), and g '(x). Find the value of h '(1). (4 points) x 1 2 3 4 5 6 f(x) 0 3 2 1 2 0 g(x) 1 3 2 6 5 0 f '(x) 3 2 1 4 0 2

    asked on February 21, 2016
  18. AP Physics - Equilibrium

    The Achilles tendon is attached to the rear of the foot as shown in the figure below. When a person elevates himself just barely off the floor on the ball of one foot, estimate the tension Ft in the Achilles tendon (pulling upward) and the (downward) force

    asked on November 13, 2009
  19. math

    Write an equation of a line perpendicular to line AB below in slope-intercept form that passes through the point (7, 6). A (0,1) B (-2,5)

    asked on March 26, 2014
  20. AP Physics

    A girl is whirling a ball on a string around her head in a horizontal plane. She wants to let go at precisely the right time so that the ball will hit the target on the other side of the yard. When should she let go of the string?

    asked on September 24, 2009
  21. English

    I hear the mournful wail of millions, whose chains, heavy and grievous yesterday, are to-day rendered more intolerable by the jubilant shouts that reach them. Which definition of rendered is most likely suited for this line? Caused to be a certain nature

    asked on March 11, 2016
  22. Calculus

    The rate at which water flows into a tank, in gallons per hour, is given by a differentiable function R of time t. The table below gives the rate as measured at various times in an 8-hour time period. t---------0-----2------3-------7----8 (hours)

    asked on February 23, 2016
  23. algebra

    An amusement park charges $8 admission and average of 2000 visitors per day. A survey shows that , for each $1 increase in the admission cost, 100 fewer people would visit the park. Write an equation to express the revenue, R(x) dollars, in terms of a

    asked on March 18, 2015
  24. Biology

    Codominance is a form of inheritance in which two different alleles for a gene are both expressed, and neither allele is dominant over the other. The alleles for type A blood and type B blood are codominant. If a man who is homozygous for type A blood and

    asked on July 6, 2017
  25. Calculus

    Which of the following functions grows the fastest as x goes to infinity? 3^x ln(x) e^4x x^10 I put e^4x but I thought that 3^x might have been it too. I know for sure that it is not ln(x) and x^10 because those grow much slower.

    asked on February 20, 2016
  26. Calculus

    Show that f(x) = 2000x^4 and g(x) = 200x^4 grow at the same rate I know that they grow at the same rate because they are both raised to the same power, but i don't know how to show it.

    asked on March 4, 2016
  27. chemistry

    what is the volume occupied by 2 moles of ammonia at s.t.p(1mole of gas at s.t.p=22.4)

    asked on May 4, 2015
  28. World History

    What role did the Jacobins play in the French Revolution? The Jacobins reached an agreement with moderate French leaders to end the revolution. The Jacobins opened French gov't to full participation by women. The Jacobins returned France to a monarchy by

    asked on March 27, 2014
  29. chemistry

    What are the oxidation numbers for the elements in the compound C2H5COOH?

    asked on April 27, 2011
  30. chemistry

    What is pH of 0.1M solution of NH4Br, if the pKb of NH3 is 4.74?

    asked on November 9, 2012
  31. Economics help

    An elderly man receives free prescription drugs from a veterans' hospital. So what kind of a good is this, like is this a privately owned service or publicly own service?

    asked on December 4, 2014
  32. Math

    Eleanor and Max used two rectangular wooden boards to make a set for the school play. 1 board was 6 ft long, the other was 5 1/2 ft long. The 2 boards had equal widths. The total area of the set was 60 3/8 square ft. What was the width?

    asked on October 7, 2014
  33. Managerial Finance

    A firm has an issue of preferred stock outstanding that has a par value of $100 and a 4% dividend. If the current market price of the preferred stock is $50, the yield on the preferred stock is

    asked on March 16, 2013
  34. Pre-Calculus

    A road sign at the top of a mountain indicates that for the next 4 miles the grade is 12%. Find the angle of the grade and the change in elevation for a car descending the mountain.

    asked on February 5, 2009
  35. geometry

    The difference of the same side interior angles of two parallel lines is 50°. Find the measures of these two angles. Answer: ______ &______

    asked on November 14, 2018
  36. english

    “You are over-scrupulous, surely. I dare say Mr. Bingley will be very glad to see you; and I will send a few lines by you to assure him of my hearty consent to his marrying whichever he chooses of the girls; though I must throw in a good word for my

    asked on September 15, 2018
  37. Math

    the 8th terms of a geometry progression is 640. if the first term is 5, find the common ratio and the 10th terms?

    asked on January 14, 2018
  38. Maths

    Hasim counted his money. he gave 1/3 to his brother. he spent £12 on his sister. What he had left was half what he had at the beginning. how much did he give his brother?

    asked on May 1, 2017
  39. English

    I think the answer is, because he is pretty much telling the people reform is needed. AFTER an unequivocal experience of the inefficiency of the subsisting federal government, you are called upon to deliberate on a new Constitution for the United States of

    asked on March 10, 2016
  40. Physics

    A man at the back of the crowd watches a parade by holding a plane mirror just above his head. The parade passes 6m behind his head and the mirror is 0.25 in front of the man. How far does the image in the mirror appear to be from the man

    asked on October 14, 2019
  41. english

    Which statement best describes the character of Nathalie? A. She is a flat character because her goal is to marry Brantain for his money. B. She is both flat and dynamic because she loves one man and marries another. C. She is a dynamic character because

    asked on September 24, 2018
  42. english

    Which sentence from the story includes indirect characterization? A. “She was very handsome, with a certain fine, rich coloring that belongs to the healthy brune type.” B. “During one of the pauses between their talk of the last tea and the next

    asked on September 24, 2018
  43. math

    A farmer wishes to fence a rectangular area behind his barn. The barn forms one end of the rectangle and the length of the rectangle is three times the width. How many linear feet of fence must he buy if the perimeter of the rectangle is 320 feet? The

    asked on March 10, 2018
  44. Math

    The force E needed to make a machine pull a load is partly constant and partly varies as the load L to be pulled.For a load of 20kg the force needed is 14N while 20N is needed for a load of 30kg find: a)The formula connecting E and L. b)E when L=50kg

    asked on January 6, 2018
  45. Physics

    A race car completes the final lap of a race on a 2-kilometer circular track. At the start of the lap, it crosses the line at 60 meters/second. It completes the lap 28.57 seconds later, crossing the line at 85 meters/second. Calculate the displacement and

    asked on June 29, 2012
  46. physics

    The inside diameters of the larger portions of the horizontal pipe depicted in Figure P9.47 are 2.80 cm. Water flows to the right at a rate of 1.80 10-4 m3/s. Determine the inside diameter of the constriction.

    asked on June 20, 2012
  47. Chemistry

    PLEASE HELP!! On a clear day at sea level, with a temperature of 25 °C, the partial pressure of N2 in air is 79 kPa and the concentration of nitrogen in water is 5.3 x 10-4 M. When the partial pressure of N2 is ________ kPa, the concentration in water is

    asked on May 25, 2012
  48. check geo

    the tropical climate of the amazon basin results from its location and: A)altitude B)rainfall C)the tides D)prevailing wind patterns my choose:b a quipu is a: a) tool that the aztec used for farming. b)type of house in which several generations of inca

    asked on August 21, 2009

    The distinction between mass and weight was discovered after Jean Richer transported pendulum clocks from Paris to French Guiana in 1671. He found that they ran slower there quite systematically. The effect was reversed when the clocks returned to Paris.

    asked on November 6, 2008
  50. geometry

    Lines a and b are parallel. Line c is a transversal. Find the measures of all angles formed by a,b, and c, if: one of the angles is with 70° larger than the other one.

    asked on November 14, 2018
  51. english

    An essential feature of the short story that is exemplified by Chopin’s “The Kiss” is a. the emphasis on romance b. the focus on a single effect c. precise plot structure d. action taking place in a single day e. the internal conflict I beleive it is

    asked on September 24, 2018
  52. maths

    In a race over 4 km Ryan ran at a constant speed. Sophie, however, ran the first 2 km at a speed 1 km/h more than Ryan and ran the second 2 km at a speed 1 km/h less than Ryan. Who won the race?

    asked on February 27, 2018
  53. Mathematics

    A single cell divides in two every 5 minutes and each new cell continues to divide every 5 minutes. How long does it take for the cell population to reach at least 1 million?

    asked on February 26, 2018
  54. Chemistry

    Hello this is my first experiment I've ever done before and it was fun but I gotta figure out what NaCl produced and what it yielded in percentage. Can someone double check my work. Na2CO3+2HCl=2NaCl+H2O+CO2 Mass of empty crucible & cover: 33.076g Mass of

    asked on November 12, 2017
  55. Physics

    While swinging on the wrecking ball, a student notices that, at first, the wrecking ball is in line with her birdbath when it is at a peak in its trajectory, and in line with her front door at the lowest point in the trajectory. However, since drag is

    asked on February 10, 2017
  56. Math

    An angle θ satisfies the relation csc θ cos θ = -1. A) Use the definition of the reciprocal trigonometric ratios to express the left side in terms of sin θ and cos θ. B) What is the relation between sin θ and cos θ for this angle? C) Determine two

    asked on November 22, 2016
  57. math

    The first and the last terms of an Arithmetic Progression are 6 and 171 in that order. If there are 14 terms, find the 16th term of the Arithmetic Progression.

    asked on May 8, 2016
  58. English

    To forget them, to pass lightly over their wrongs, and to chime in with the popular theme, would be treason most scandalous. . . Which word is most similar to how chime in is used here? Agree Create Harmonize Resound I have no idea because chime in- means

    asked on March 11, 2016
  59. English

    I thought it was C for this Victor Frankenstein recounts the influences that lead to his great experiment: I feel exquisite pleasure in dwelling on the recollections of childhood, before misfortune had tainted my mind and changed its bright visions of

    asked on March 6, 2016
  60. Calculus

    A water tank is made by rotating f(x)=2^x-1 between [0,2] about the y-axis. The water tank is initially full, when a hole is opened at the bottom tip so that the water drains at a rate of 4 unit^3/second. How fast is the height of the water decreasing when

    asked on January 8, 2016
  61. Calculus

    ∫(x^3-x^2)/x^2 I got (x^2)/(2)-x + C but that's not one of the answers Options x - 1 + C (x^2/2)-(x^3/3) + C (x^4-x^3)/4x^2 + C (x^2/2) -x + C

    asked on January 2, 2016
  62. Calculus, HELP!!

    1) A rectangular page is to contain 24 square inches of print. The page has to have a 6-inch margin on top and at the bottom and a 1-inch margin on each side. Find the dimensions of the page that minimize the amount of paper used. 2) A cable runs along a

    asked on March 5, 2015
  63. math

    What are the critical values on the graph of y = x^3 - 6x^2 + 9x + 3?

    asked on February 3, 2015
  64. science

    100.0g of 4.0c water is heated until its temperature is 37c. if the specific heat of water is 4.18 j/g c, calculate the amount of heat energy needed to cause this rise in temperature.

    asked on August 25, 2014
  65. math

    Tia collected $10 for a walkathon and $ 5 from each friend. What is the total amount of donations she collected from 4 friends? Is my answer below correct? Friend - 1,2,3,4 Donations - $5, $5, $5, $5 = $20 Answer is $20 from 4 friends.

    asked on January 14, 2014
  66. math

    Tia collected $10 for a walkathon and $ 5 from each friend. What is the total amount of donations she collected from 4 friends? Is my answer below correct? Friend - 1,2,3,4 Donations - $5, $5, $5, $5 = $20 Answer is $20 from 4 friends.

    asked on January 14, 2014
  67. Math

    An invoice quotes a price of $620, subject to discount of 30%, 15%, and 5% what is the selling price

    asked on May 27, 2012
  68. algebra II

    A moving company charges a flat rate of $85 plus and additional $.17 per mile driven. How far must the company drive to earn @ least $100? Round to the nearest mile.

    asked on January 30, 2012
  69. chemistry

    what are the hydronium-ion and the hydroxide ion concentration of a solution at 25 C that is 0.0050 M strontium hydroxide, Sr(OH)2? a solution of hydrochloric acid is 0.20 M HCl. What is the hydronium-ion at 25 C? What is the hydroxide ion concentration at

    asked on August 6, 2011
  70. AP Physics - Work and Energy

    A projectile is fired at an upward angle of 45 degrees from the top of a 265-m cliff with a speed of 185 m/s. What will be its speed when strikes the ground below? (Use conservation of energy.) I have a diagram of it but I don't know what equations to use.

    asked on October 15, 2009
  71. geography

    pakistan and india disagree about the political borders of: A)** bangladesh B)kashmir C)bhutan D)nepal

    asked on September 24, 2009
  72. check geo

    most profits from minning in south africa: A)go to foriegn corporations B)are divided among the workers as bonuses C)are reinvested in the nations economy D)go into a fund to help increase literacy in the nation my choose is c which of the following is a

    asked on September 10, 2009
  73. check geo

    The pampas consist primarily of: A)grasslands B)forests C)deserts D)rain forest my choose:a A________ is a place wherea tide meets a river current. A)escarpment b)coast C)estuary D)cordillera my choose is c The area surrounding lake maracaibo in venezuela

    asked on August 21, 2009
  74. Social Studies

    I simply don't understand this question. I've read through some links and most are nonsense Can anyone help me? By chance? "Which pull factor would most likely encourage an immigrant who wanted to raise and sell cattle in the United States" A. Industrial

    asked on March 30, 2020
  75. Arithmetic progression

    The 1st term of linear sequence is 3 and the 8th term is 31. Find the common difference

    asked on October 18, 2019
  76. math

    A patio has the shape of the quadrilateral drawn in the picture below. 1) Find the area of the patio. 2) What is the minimum number of square-tiles with sides of 30 cm that are needed to cover the patio if 10% more tiles will be needed to cover the

    asked on March 7, 2019
  77. geometry

    prove that every segment is congruent itself

    asked on January 3, 2019
  78. geometry

    Lines a and b are parallel. Line c is a transversal. Find the measures of all angles formed by a,b, and c, if: one of the angles has measure of 150°.

    asked on November 14, 2018
  79. English

    The most significant example of indirect characterization of Mr. Darcy in this passage is A. Mr. Bingley’s description of Mr. Darcy. B. Mr. Darcy’s behavior toward Elizabeth. C. Mrs. Bennett’s opinion of Mr. Darcy. D. the information about Mr.

    asked on September 24, 2018
  80. chemistry

    A student writes the equation that summarizes respiration incorrectly C_6 H_12 O_6 + 6O_2 ----> 3CO + 3CO_2 + 6H_2O Which of the following statements correctly identifies the mistake in balancing the equation? a. Not enough oxygen atoms are created in the

    asked on September 12, 2018
  81. Chemistry

    Help me with this; For the second part of the analysis,you will be provided with hydrated crystal of oxalic acid (H2C204. 2H2O). weigh out accurately about 1.575g of oxalic acid in a weighing bottle. Dissolve the acid in a beaker, then transfer the

    asked on June 17, 2018
  82. physics

    How close must two 1.0 C charged objects be for their mutual force to exceed 1.0 N? Compare that distance to something in your everyday life.

    asked on May 31, 2018
  83. Chemistry

    a hydrocarbon is burnt completely in excess oxygen. it is found that 1.00g of the hydrocarbon gives 2.93g carbon dioxide and 1.80g water. find the empirical formula of the hydrocarbon (H=1,C=12,O=16)

    asked on May 10, 2018
  84. Business

    PLEASE HELP 1.Create a diagram of the U.S banking system and the Federal Reserve System(FRS). Include special financial services of the banking system in your diagram. Be creative in this activity. Pretend you have been asked to teach the structure and

    asked on March 22, 2018
  85. Maths

    A person stands in front of a cylindrical water tank and has a viewing angle of 27 degrees to the sides of the tank. What percentage of the circumference of the tank can they see?

    asked on March 15, 2018
  86. Math

    Use the clue bellow to find the mystery number: - The mystery number has 3 digits - The sum of the digits in the mystery number equals 16 - The mystery number is greater than 800 and less than 825 - All digits in the mistery number are even.

    asked on September 22, 2016

    RIDDLE:My weakness and fame equals

    asked on September 9, 2016
  88. Biology

    How are the following terms related to the process of transcription and one another? Eukaryotes, Prokaryotes, membrane-bound nucleus, introns, exons, precursor RNA (pre-mRNA), mature RNA, heterochromatin, euchromatin, and structural gene.

    asked on February 12, 2016
  89. Calculus 2

    Sketch the region in the first quadrant enclosed by y=7/x, y=2x, and y=x/2. Decide whether to integrate with respect to x or y. Then find the area of the region.

    asked on February 9, 2016
  90. math

    An oil painting is worth $400. Its value increases by 7% each year(compounded annually) What is the value of the painting after 6 years? How would the graph change of the initial value of the oil painting was more than $400? Less than $400?

    asked on May 18, 2015
  91. physics

    A golfer takes two putts to sink the ball, one is (81.6 ft, 31.7 degrees N of E) and the other is (3.20 ft, 53.4 degrees W of N). What is the displacement of the single putt that would sink the ball on the first try? Well, what I did was make a diagram of

    asked on February 24, 2015
  92. physics

    The position versus time for a certain object moving along the x-axis is shown. The object’s initial position is −2 m. Find the instantaneous velocity at 6 s. Answer in units of m/s

    asked on November 21, 2014
  93. math 2

    A segment with endpoints C (3,4) and D (11,3) is divided by a point E such that CE and DE form a 3:5 ratio. Find E.

    asked on March 26, 2014
  94. Physics

    calculate the work required to launch a satellite from the surface of the earth (radius6380km) to orbit 6000 km above the surface

    asked on February 16, 2014
  95. Calculus Word Problem

    A farmer wishes to build a fence for 6 adjacent rectangular pens. If there is 600 feet of fencing available, what are the dimensions of each pen that maximizes total pen area? The image looks like this: box box box box box box also: If the interior fencing

    asked on April 10, 2013
  96. Calculus

    THANK YOU TUTORS SO MUCH FOR YOUR HELP Determine the intervals on which the function is concave up or concave down. I finally understand that when f'' is greater than 0 it means concave up. f(X) = 18x^2 + x^4 so I differentiate that to be 36x + 4x^3 that

    asked on March 31, 2013
  97. Chemistry

    Pure ethanoic acid (25.0cm3, CH3COOH), pure ethanol (35.0 cm3, C2H5OH) and pure water (20.0cm3, H2O) were mixed in a sealed flask at room temperature. The flask was placed in a heated water bath and maintained at 323K until equilibrium was established.

    asked on May 1, 2012
  98. Chemistry

    (a) Explain what is meant by a weak acid. Methanoic acid (HCO2H) has a numerical value of Ka(T) at 298K of 1.60 × 10-4 (b) Write an expression for Ka(T) of methanoic acid, and state its units. (c) What is the pH value of a 0.10 mol dm-3 aqueous solution

    asked on April 22, 2012
  99. English

    Thank you, Writeacher. Can you please have a look at the following sentences? 1) I think in American English you can say: She said she was leaving the hotel the day after (instead of the following day). 2) He said he had lost his keys the night before. 3)

    asked on March 8, 2012
  100. English

    Writeacher, I really need your help to paraphrase the beginning of Chapter 2 taken from Dickens's "Hard Times". In particular, I would like to simplify Mr. Gradgrind's description, reduce it to a paragraph and turn it into a fill-in-the-blank activity. (I

    asked on March 7, 2012


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