Questions Asked on
November 13, 2011

  1. Calculus

    A stone is dropped from the upper observation deck of a tower, 200 m above the ground. (Assume g = 9.8 m/s^2.) a)Find the distance (in meters) of the stone above ground level at time t. b)With what velocity does it strike the ground? (Round your answer to

    asked by John
  2. Chemistry

    Write a balanced chemical equation for the reaction of propylamine with water. Is propylamine --> CH3CH2CH2NH2? Is the equation CH3CH2CH2NH2 + H2O --> CH3CH2CH2NH3+ + OH- right? Isn't this balanced?

    asked by Steph
  3. physics

    a pet truck is moving at 25m/s north, a dog inside moves at 1.75 m/s at angle 35 degrees east of north. What is the velocity of the dog relative to the road?

    asked by anna
  4. physics

    A 1.6 air bubble is released from the sandy bottom of a warm, shallow sea, where the gauge pressure is 1.6 . The bubble rises slowly enough that the air inside remains at the same constant temperature as the water. What is the volume of the bubble as it

    asked by Anonymous
  5. Chemistry

    Consider the combustion of propane: C3H8(g)+5O2(g) yields 3CO2(g) + 4H2O(l) delta H= -2221 kJ Assume that all of the heat comes from the combustion of propane. Calculate delta H in which 5.00g of propane is burned in excess oxygen at constant pressure.

    asked by Shellby
  6. Business communication

    Explain the importance of recognizing cultural variations and list 5 categories of cultural differences (10). Here is my answer: Recognizing cultural variations are important because there are a great chance that you will be communicating across

    asked by Taskeen
  7. Chemistry

    A 5.00-g sample of aluminum pellets (specific heat capacity = 0.89 J/°C · g) and a 10.00-g sample of iron pellets (specific heat capacity = 0.45 J/°C · g) are heated to 100.0°C. The mixture of hot iron and aluminum is then dropped into 91.9 g of water

    asked by Bill
  8. Chemistry

    The value of delta H for the reaction of 2Na2O2(s) + 2H20(l)----> 4NaOH(s)+O2(g) is -126KJ When 2.0 moles of NaOH is formed?

    asked by Linda
  9. psychology

    A newspaper advice columnist suggests that thinking can be voluntarily controlled and changed but that emotions are gut-level, biological reactions that can't be voluntarily controlled or modified. Use your knowledge of emotion research and theory to

    asked by Timethy
  10. Calculus

    A box is constructed out of two different types of metal. The metal for the top and bottom, which are both square, costs $2 per square foot and the metal for the sides costs $7 per square foot. Find the dimensions that minimize cost if the box has a volume

    asked by Kayla
  11. Human Physiology

    Bill damaged the spinothalamic tract on the right side of his spinal cord at the thoracic level. What would be impaired? 1) touch sensation of the right leg 2) touch sensation of the left leg 3) temperature sensation of the right leg 4) pain sensation of

    asked by Cari
  12. chemistry

    for the reaction S2F6 (g) 2SF2(g), the equilibrium concentrations are as follows: [S26]=0.000430M, [SF2]=2.08 M, [F2]=1.32M. the equilibrium constant is

    asked by karen
  13. Chemistry

    1. Out of all the "8" gases [Argon, Hydrogen, Nitrogen, Oxygen, Air, Helium, Methane, Carbon Dioxide], which one is the most likely to depart from the ideal gas behavior? Why? 2. Out of all the "8" gases [Argon, Hydrogen, Nitrogen, Oxygen, Air, Helium,

    asked by Michael
  14. calculus

    A rectangle with its base on the x-axis is to be inscribed under the graph of y=2-x^2. Find the height of the rectangle if the area is the largest possible area. (Round to the nearest hundreth)

    asked by Sarah
  15. Science

    Consider the combustion of propane: C3H8(g)+5O2(g) yields 3CO2(g) + 4H2O(l) delta H= -2221 kJ Assume that all of the heat comes from the combustion of propane. Calculate delta H in which 5.00g of propane is burned in excess oxygen at constant pressure.

    asked by Shellby
  16. Calculus--Please Help!

    A 13-foot ladder is leaning against a vertical wall. If the bottom of the ladder is being pulled away at a rate of 2 feet per second, how fast is the area of the triangle formed by the wall, the ground, and the ladder changing when the bottom is 12 feet

    asked by Maria
  17. organic chemistry

    Could you use NaOH to separate acetylsalicylic acid (aspirin) and acetaminophen (Tylenol) by acid-base extraction?

    asked by dan
  18. calculus

    Find the angle that maximizes the area of the isosceles triangle whose legs have length l=31 angle=

    asked by saud
  19. Chemistry

    Calculate the pH at the equivalence point for the titration of 0.120 M methylamine with 0.120 M HCl (kb of methyalamine is 5.0 x 10^-4)

    asked by Mariana
  20. Chemistry

    A 100g sample of water at 90 degrees celsius is added to a 100g sample of water at 10 degrees celsius. The final temperature of the water is which of the following: a) between 50 degrees celsius and 90 degrees celsius b) 50 degrees celsius c) between 10

    asked by Shellby
  21. psychology

    A newspaper advice columnist suggests that thinking can be voluntarily controlled and changed but that emotions are gut-level, biological reactions that can't be voluntarily controlled or modified. Use your knowledge of emotion research and theory to

    asked by Anonymous
  22. physics

    A 36 cm diameter wheel accelerates uniformly about its center from 150 rpm to 360 rpm in 3.6 s. Determine the radial component of the linear acceleration of a point on the edge of the wheel 1.1 s after it has started accelerating.

    asked by David colon
  23. Chemistry

    Consider the following reaction. CH4(g) + 2 O2(g) CO2(g) + 2 H2O(l) ÄH = -891 kJ Calculate the enthalpy change for each of the following cases. 1.00 103 L methane gas at 719 torr and 26°C is burned in excess oxygen.

    asked by Bill
  24. algebra

    Jeff made some designs using equilateral triangles, as shown bellow. He noticed that as he added new triangles, there was a relationship between the number of triangles, and the outer perimeter of the design. If the pattern is continued, what would be the

    asked by Anonymous
  25. calculus

    Find the angle that maximizes the area of the isosceles triangle whose legs have length l=31 angle=

    asked by saud
  26. Chemistry

    A sample of C3H8O that contains 200. molecules contains ________ carbon atoms.

    asked by Matt
  27. Physics

    Veronica can swim 3.0 m/s in still water. While trying to swim directly across a river from west to east,? Veronica is pulled by a current flowing southward at 2.0m/s. a) What is the magnitude of Vernoicas resultant velocity? b) If Veronica wants to end up

    asked by Zady
  28. chemistry

    Aqueous solutions of iron (III) sulphate and barium hydroxide are combined. Does a precipitate form? If yes write a net ionic equation for the precipitation reaction. You first identify the formula of the aqueous compounds (note that iron is said to be

    asked by luke
  29. chemistry

    The enthalpy of neutralization for the reaction of a strong acid with a strong base is -56 kJ/mol of water produced. How much energy will be released when 185.0 mL of 0.400 M HCl is mixed with 152.5 mL of 0.500 M NaOH?

    asked by Bill
  30. Chemistry

    Chlorine gas, CL2 is used to purify water. How many moles of chlorine gas are in a 7.00L tank if gas has a pressure of 865mmHg anf temp of 24 degree celcius?

    asked by Ida
  31. Stats

    Suppose the time it takes for a purchasing agent to complete an online ordering process is normally distributed with a mean of 8 minutes and a standard deviation of 2 minutes. Suppose a random sample of 25 ordering processes is selected. The standard

    asked by Jerry
  32. physics

    The brick shown in drawing the is glued to the floor. A 3500-N force is applied to the top surface of the brick as shown. If the brick has a shear modulus of 5.4 109 N/m2, how far to the right does the top face move relative to the stationary bottom face?

    asked by jeremy
  33. Chemistry

    A sample of Argon gas at standard pressure occupies 1000 mL. At constant temperature, what volume does the gas occupy if the pressure increases to 800 mm Hg?

    asked by Jessie
  34. Physics

    A 11.5 m long conveyor belt, inclined at 30.0°, is used to transport bundles of newspapers from the mailroom up to the cargo bay to be loaded on to delivery trucks. Each newspaper has a mass of 1.0 kg, and there are 21 newspapers per bundle. Determine the

    asked by Iklishi
  35. Chemistry-Common ions

    c=Calculate the OH- conc in a solution containing 6.2x10(-3)M Ba(OH)2 and 1.00x10(-2)M BaCl2? I thought of using the BaCl2 conc to find the conc of Ba initially, then use that in the ice table for Ba(OH)2, and solve for OH. But i dnot think that's right.

    asked by matt
  36. Physics

    A boat can travel 2.85 m/s in still water. If the boat points its bow directly across stream whose current is .95 m/s, what is the velocity of the boat relative to the shore?

    asked by Anonymous
  37. chemistry

    The heat of fusion of ice is 6.00 kJ/mol. Find the number of photons of wavelength = 6.42 x 10e-6 m that must be absorbed to melt 2.00 g of ice.

    asked by mw
  38. Chemistry

    An estimation of the radius of a lead atom: a. You are given a cube of lead that is 1.000 em on each side. The density of lead is 11.35 g/cm3. How many atoms of lead are contained in the sample. b. Atoms are spherical; therefore, the lead atoms in this

    asked by Arnol
  39. Math

    Find the number c that satisfies the conclusion of the Mean Value Theorem: x^3+x-9 [0,2]

    asked by Lisa
  40. Chemistry

    1. When 20cm^3 of a gaseous Allene burns in an excess of oxygen, 60cm^3 of carbon dioxide are formed. Both volumes are measures at r.t.p. What is the formula of alkene? Is it C3H6 or C6H12 and why? 2. A student investigate the reaction of vegetable oil

    asked by StuartKess
  41. US history HELP

    All of the following statements about the Battle of Midway are true EXCEPT that: 1. ( They never retreated :S ) the Japanese navy was forced into retreat less than six months after Pearl Harbor 2.(possible) the battle began with another Japanese surprise

    asked by HM
  42. solid mensuration

    in a circle with diameter of 12 inches, a regular five-pointed star is inscribed. what is the area of that part not covered by the star?

    asked by Anonymous
  43. Physics

    A plane has an airspeed of 200 m/s due north and is subject to a westerly wind of 50 m/s. What is the planes speed relative to the ground?

    asked by Anonymous
  44. chemistry

    FeSO4 (aq) + Ba(OH)2 (aq) = BaSO4 (s) + Fe(OH)2 (s) 2Fe3+(aq) + 3SO4=(aq) + 3Ba2+(aq) + 6OH-(aq) ===> 2Fe(OH)3(s) + 3BaSO4(s) which one respresents the precipate when iron (III) sulphate aq and barium hydroxide aq are combined.

    asked by luke
  45. Math

    Tyler buys a stereo system for $1200, and pays for it using a credit card. This particular card charges 1.5 percent monthly interest on the unpaid balance, and requires a minimum payment of $20 each month. Suppose that Tyler pays only the minimum amount

    asked by Danielle
  46. US history HELP

    The use of atomic bombs against Japan had what significance? 1. They rendered the entire island of Honshu inhabitable for twenty-three years. 2. They prevented the Soviets from entering the war in Asia. 3. They shocked Germany into surrendering before

    asked by HM
  47. Comm 100 college

    The most important principle of language adaptation is to A.adapt the level of language to the situation and the audience. B.adapt to less formal and more colloquial so that all people will understand you. C.adapt to spoken and written substandard language

    asked by Michelle
  48. Physics

    Ignoring air resistance, a ball dropped from rest at altitude 250km strikes the ground with (a) 1500m/s (b) 2200m/s (c) 2800m/s I already know that is 2200m/s but don't understand why???

    asked by Mily
  49. solid mensuration

    what is the area of a parabola inscribed in a rectangle 30cm long and 22cm wide

    asked by Anonymous
  50. Global

    How and why did Russia emerge as a great power? Discuss the character of Peter the Great. How were his reforms related to his military ambitions? What were his methods of reform? To what extent did he succeed? What were Russia’s domestic problems before

    asked by Camile
  51. chemistry

    What is the function of each of the following reagents in this experiment: phosphoric acid; anhydrous sodium sulfate; sodium carbonate solution, and saturated sodium chloride solution

    asked by Anonymous
  52. chemistry

    The combustion of 0.1619 g benzoic acid increases the temperature of a bomb calorimeter by 2.77°C. Calculate the heat capacity of this calorimeter. (The energy released by combustion of benzoic acid is 26.42 kJ/g.) kJ/°C A 0.1510 g sample of vanillin

    asked by william
  53. chemistry

    the combining ratio by weight of copper and sulfur assignment

    asked by Anonymous
  54. psychology

    # 1.21 (1 pts.) William is acutely retarded and requires intense care. His IQ has been measured at approximately 15. What term would be used to classify William's level of retardation? A) mild B) moderate C) severe D) profound # 1.22 (1 pts.) Shannon has

    asked by adeniyi
  55. math

    During a sale at the local department store, you buy three sweatshirts and two pairs of sweatpants for $85.50. Later you buy three more sweatshirts and four more pairs of sweatpants for $123.00 What is the sale price of each sweatshirt and each pair of

    asked by robin
  56. Chemistry

    The heat capacity of liquid water is 4.18 J/g·°C and the heat of vaporization is 40.7 kJ/mol. How many kilojoules of heat must be provided to convert 1.00 g of liquid water at 67°C into 1.00 g of steam at 100°C?

    asked by Sue
  57. calculus

    A person drops a stone from a bridge. How high is the bridge if they hear the splash 4 seconds later. Assume the speed of sound is 1080ft/sec.

    asked by c
  58. Calculus- rates

    A tanker is spilling oil into the water resulting in an oil slick that is close to circular. At te time that the slick's diameter is growing at a rate of 8 ft/sec, the diameter is 250 feet. At what rate is the area of the oil sick increasing?

    asked by Sarah
  59. statistics

    The heights in inches of 14 randomly selected adult males in LA are listed as: 71, 67, 70, 59, 71, 68, 67, 71, 80, 68, 74, 69, 72, 68. 1. Display the data in a stem-and-leaf plot. 2. Find the mean. 3. Find the median. 4. Find the mode. 5. Find the range.

    asked by Anonymous
  60. Chemistry

    Consider the dissolution of CaCl2. CaCl2(s) Ca2+(aq) + 2 Cl-(aq) ÄH = -81.5 kJ A 12.4 g sample of CaCl2 is dissolved in 100. g of water, with both substances at 25.0°C. Calculate the final temperature of the solution assuming no heat lost to the

    asked by Bill
  61. calculus

    Your task is to design a rectangular industrial warehouse consisting of three separate spaces of equal size.? The wall materials cost $58 per linear foot and your company has allocated $27840 for those walls. 1) The dimensions which use all of the budget

    asked by saud
  62. statistics

    based on a random sample of 640 college students, the mean amount of sleep college students. construct a 95% confidence interval for the mean amount of sleep per night for college studenrs.

    asked by jamie brice
  63. chemistry

    Consider the dissolution of CaCl2. CaCl2(s) Ca2+(aq) + 2 Cl-(aq) ΔH = -81.5 kJ A 13.0 g sample of CaCl2 is dissolved in 134 g of water, with both substances at 25.0°C. Calculate the final temperature of the solution assuming no heat lost to the

    asked by william
  64. trig

    find the coordinates of the terminal point on the unit circle determined by t=9pt/7 to two decimal places

    asked by Kristin
  65. US history

    After dropping two atomic bombs on Japan, the United States: 1. accepted Japan’s surrender, albeit with the condition that the emperor could keep his throne 2. dropped a third one on Tokyo to force the Japanese to surrender 3. accepted Japan’s

    asked by HM
  66. Calculus- rates

    A man 6ft. tall walks at the rate of 5 ft/sec toward a streelight that is 16 ft. above the ground. At what rate is the length of his shadow changing when he is 10ft. from the base of the light?

    asked by Sarah
  67. Calculus

    Let f(x)=3x^5+5x^3+15x+15. Use Rolle's Theorem to show that f(x) has exactly one root.

    asked by Joe
  68. Chemistry

    The iodide ion can be oxidized in an acidic solution by hydrogen peroxide. One proposed mechanism for the reaction is as follows: Step 1: H2O2 (aq) + I-(aq) → H2O (l) + OI-(aq) slow Step 2: H+(aq) + OI-(aq) → HOI(aq) fast Step 3: HOI (aq) + H+(aq) +

    asked by Neha
  69. Biology

    When dissecting a fetal pig, how can you tell the difference between veins and arteries? I remember someone saying something about if you poke one, its spongier or something? help! Thank you!

    asked by Teddy
  70. science

    I want to do a science fair project on which skin moisturizer works best. How can I find some ideas on ways to test this? Thank you!

    asked by charlotte
  71. Physics

    A heavy-duty stapling gun uses a 0.162-kg metal rod that rams against the staple to eject it. The rod is pushed by a stiff spring called a "ram spring" (k = 32657 N/m). The mass of this spring may be ignored. Squeezing the handle of the gun first

    asked by Leah
  72. College Calculus

    A light is on the ground 20m from a barn. A 2m tall llama walks from the light directly toward the side of the barn at 1m/s. How fast is the height of the llama's shadow on the barn changing when he's 14m from the barn? (draw and label a nice diagram

    asked by A
  73. Global Politics

    Describe the difference between intergovernmentalism and supranationalism. Provide useful examples from the European Union, NATO, and the United Nations.

    asked by Sheryl
  74. Critical Thinking

    When the interests of politicians or big business moguls coincide with those of the masses which of the following is the consequence? coverage of events will be leaked coverage of events will be automatic coverage of events will be cancelled coverage of

    asked by Anonymous
  75. solid mensuration

    what is the area of a section bounded by a closed elliptical whose major and minor segments measures 60cm and 45cm respectively?

    asked by Anonymous
  76. chemistry

    I need help with this question please help, I just don't understand it Fe3+ (aq), Ca2+ (aq) and Ba2+ are all present in the same solution. Fully describe a procedure whereby you could separate these ions from one another Mr Pursley posted this response,

    asked by Kali
  77. science

    what properties would you predict for darmstadtium?

    asked by Anonymous
  78. Algebra

    You borrow $40 from your sister. To repay the loan, you pay her $5 a week. Write a linear equation to model the situation and check with unit alalysis.

    asked by Qwerty
  79. US history HELP

    From late 1941 into early 1942, World War II in the Pacific experienced: 1.(i am not sure) a string of American victories that put Japan on the defensive 2.(wrong) the Japanese invasion and capture of Australia 3.(wrong) the Japanese on the Philippines

    asked by HM
  80. College Calculus

    A 13-foot ladder is leaning against a vertical wall. If the bottom of the ladder is being pulled away at a rate of 2 feet per second, how fast is the area of the triangle formed by the wall, the ground, and the ladder changing when the bottom is 12 feet

    asked by Maria
  81. communications

    Which of the following are the qualities of effective interpersonal communication conversation skills? A.making introductions, relevance, tact,and sincerity B.relevance, tact, sincerity, and giving directions C.relevance, tact, courtesy and sincerity I

    asked by Michelle
  82. COMM 100

    One of the biggest benefits of using primary sources in your speech is ________. A.to show that you have been thorough enough to go to original sources B.to give you more material to memorize C.to give you more materials to include in presentation software

    asked by Michelle
  83. Social Studies

    what effect do you think the northwest ordinance had on native americans??????? plz help

    asked by Anonymous
  84. Finance

    Trying to figure out how to do problems like these. So confused! 1. The receivables turnover for 2009 is 10 times. 2. All sales are on account. 3. The profit margin for 2009 is 14.5%. 4. Return on assets is 22% for 2009. 5. The current ratio on December

    asked by Ali
  85. math

    500 students sat for an examination in mathematics,physics and chemistry.45 passed all the three subject,60 passed mathematics and chemistry,70 passed physics and chemistry,50 passed mathematics and chemistry,10 passed in mathematics,80 passed in chemistry

    asked by damilola
  86. US history

    Which of the following is an American organization founded in the early 1920s to promote international peace? 1. Daughters of the American Revolution 2. American Committee for the Outlawry of War 3. Kellogg-Briand group 4. League of Nations 5. United

    asked by HM
  87. US history

    The passage of the lend-lease bill in 1941 signaled what about American opinion? 1. Internationalist sentiment was weakening. 2. Pacifism was resurgent. 3. Americans paid little attention to the European war. 4. The president lost control over Congress. 5.

    asked by HM
  88. Essay Help! (please read)

    Is their anything else I can add to my conclusion. Please check my artist statement. I know I show it to you but i did some changes again and i would like for you guys to check it. writing statemrnt: The reason why my essay "Vive la difference!" relates to

    asked by Laruen
  89. US history HELP

    Which of the following statements about the Social Security Act is NOT true? 1. It was based on a progressive tax that took a larger percentage of higher incomes. 2. It provided old-age pensions. 3. It was, according to Roosevelt, the “supreme

    asked by HM
  90. Physics

    A 2010 kg car traveling to the west at 18.5 m/s slows down uniformly under a force of 8880 N to the east. a) How much force would be required to cause the same acceleration on a car of mass 3120 kg? How far would the car move before stop- ping? Answer in

    asked by Eileen
  91. Calculus

    At time t >or= to 0, the position of a particle moving along the x-axis is given by x(t)= (t^3/3)+2t+2. For what value of t in the interval [0,3] will the instantaneous velocity of the particle equal the average velocity of the particle from time t=0 to

    asked by Millie
  92. Chemistry (Follow up post - Dr.BOB22)

    Ionization is when an electron is removed from an atom and ionization energy is the energy required to do this. "Electrons stream from the negative electrode to the positive electrode. In the process of moving from one electrode to the other they knock

    asked by Jessica
  93. math is this right (18)

    amy paid $62.05 for a pair of running shoes during a 40% off sale. what is the regular price. i got $74.46? is that correct?

    asked by scooby
  94. Physics

    A 65kg person's density is 990kg/m^3 with 2.4 L of air in lungs. What vol of air would the person have to expel to bring the density to that of water 1000 kg/m^3 (neglect the mass of air)?

    asked by Mily
  95. chemistry

    what one is the Most Soluble compound 1) CuS, Ksp = 1.27 x10^-36 2) PbS, Ksp = 9.04 x 10^-29 3) AgCl,Ksp = 1.77 X 10^-10 4) AgI, Ksp = 8.51 x 10^17 5) Not enough information. My book states that AgCl is insoluble in water and so are MOST phosphates and

    asked by Ashley
  96. geography

    The Beaufort Sea touches what two North American countries? Canada and the United States 2. Are there any states located south of 25 degrees N latitude? If so, which one(s)? Yes, Hawaii. 3. What line of latitude falls halfway between the Tropics of

    asked by Reed
  97. Pre-Algebra

    Question is: What is the algebraic equation to determine when they will meet? For the following information, I understand 5(x+y) = 3000 for 1st plane & 10(x-y) = 3000 for 2nd plane. When an airplane flies with a given wind, it can travel 3000 km in 5hrs.

    asked by Carol
  98. algebra

    2x +y+3z=-1,(a+3)x+2y+8z=2,3x+y(a+1)z=1 solve for a, by gauss-jordan elimination

    asked by dmx
  99. Trig

    cos(-11pi/12)

    asked by Lauren
  100. Physics

    An airplane with an airspeed of 33.3 m/s is headed 30 degrees east of north in a wind blowing due west at 30 m/s. What is the ground speed of the plane?

    asked by Anonymous
  101. Physics

    Two Planes approach each other head-on. One plane has a speed of 800 km/h and the other has a speed of 900 km/h and they spot each other when they are initially 15 km apart. How much time in seconds do the pilots have to take evasive action?

    asked by Anonymous
  102. Reserach

    The average commute time via train from the Chicago O'Hare Airport to downtown is 60 minutes with a s=15 minutes. Assume that the commute times are normally distributed. what proportion of commutes would be: Between 45 and 75 minutes?

    asked by Michael
  103. physics

    a small block of mass M=0.050 kg is released from rest at the top (h=0.60 m) of the curved frictionless ramp shown above. The block slides down the ramp and collides with a larger block of mass 1.5M=0.075 kg at rest at the bottom of the incline. The larger

    asked by emilyy
  104. physics

    Assume the driver has a mass of 70.6 kg . What horizontal force does the seat exert on the driver? Answer in units of N

    asked by Brooke
  105. physics

    A planet orbits its star in a circular orbit (uniform circular motion) of radius 1.62x10^11 m. The orbital period of the planet around its star is 37.0 years. Determine the following quantities for this orbital motion: Angular acceleration , Tangential

    asked by sand
  106. calculus

    Maximize p = 2x + 2y subject to 4x + 8y 24 8x + 4y 32 x 0 , y 0 (Round all answers to the nearest 0.1.) p = Incorrect: Your answer is incorrect. x = Incorrect: Your answer is incorrect. y = Incorrect: Your answer is incorrect.

    asked by LC
  107. Physics

    When an object of mass m1 is hung on a vertical spring and set into vertical simple harmonic motion, its frequency is 12Hz. When another object of mass m2 is hung on the spring along with m1, the frequency of the motion is 4Hz. Find the ratio m2/m1 of the

    asked by Leanne
  108. Physics

    When an object of mass m1 is hung on a vertical spring and set into vertical simple harmonic motion, its frequency is 12Hz. When another object of mass m2 is hung on the spring along with m1, the frequency of the motion is 4Hz. Find the ratio m2/m1 of the

    asked by Leanne
  109. psychology

    # 1.31 (1 pts.) Debbie is a little girl who has been diagnosed as having autistic disorder. Each time she engages in self-injurious behavior, like head-banging, her mother immediately runs over and attempts to stop her by holding her close. According to

    asked by adeniyi
  110. English

    I am trying to look for 20 lines of blank verse in shakespeare's play Measure for Measure. I found this: we CANnot WEIGH our BROther WITH ourSELF. great MEN may JEST with SAINTS; tis WIT in THEM. (2.2.16) Did anyone find a bigger chunk of blank verse?

    asked by Jasmin
  111. science

    1) How do hormones from the thyroid gland and parathyoid gland work together?

    asked by samantha
  112. Science/Physics

    An astronaut is about 20 m from her space station when the rocket thrusters run out of fuel. If she is carrying a few tools and can remove the rocket thruster, what should she do to get back to the space station? Explain reasoning.

    asked by Ann
  113. Comm 100 college

    Persuasive speeches focus on forcing the audience to change the way it thinks and feels. TRUE OR FALSE I just wanted to double check on this, because I don't think you are for say "forcing" them to think differently, but giving them the info to let them

    asked by Michelle
  114. Pre-Algebra

    Question is: What is the algebraic equation to determine when they will meet? For the following information, I understand 5(x+y) = 3000 for 1st plane & 10(x-y) = 3000 for 2nd plane. When an airplane flies with a given wind, it can travel 3000 km in 5hrs.

    asked by Carol
  115. COMM 100

    Assertive speakers tell their listeners what they mean and what they expect. true or false, Assertive communication is said to be where you take in the other persons feelings and rights into consideration, however assertive makes me think of firm, so I

    asked by Michelle
  116. Physics

    A solenoid with 200 turns and a cross sectional area of 60 cm^2 has a magnetic field of .60 T along its axis. If the field is confined within the solenoid and changes at a rate of .20 T/s, the magnitude of the induced potential difference in the solenoid

    asked by Jasmine
  117. COMM 100

    Your self-concept is not usually influenced by your communication with others or their feedback to you. true or false true?

    asked by Michelle
  118. Physics

    The current in a very long, tightly wound solenoid with radius a and n turns per munit length varies in time according to the equation i(t)=Ct^2, where the current i is in amps and the time t is in seconds, and C is constant with appropriate units.

    asked by Jasmine
  119. Related rates-calculus

    You are eating soup from a hemispherical bowl of radius 6cm at a constant rate of 40ml/min. Find the rate at which the soup level is going down in depth of the soup is 2cm.

    asked by A
  120. Psychology

    Hi Jiskha Instructors, I am having a real difficult time finding answers to my five questions. Is there someone who can help point me in the right direction to credible or reputable website sources? Or answer these five questions. I need a credible

    asked by Sharon
  121. economics

    Q AC MC 1 4 12 2 8 20 3 12 28 4 16 36 5 20 44 6 24 52 7 28 60 8 32 68 9 36 76 suppose that there are 70 firms in operating in the industry. using the MC curve, find out how much output in total is delivered to the market at each price (you only need to

    asked by john
  122. economics

    since the AC curve in the problem is upward-sloping everywhere, it is not possible to construct a zero-profit equilibrium given the assumptions of the problem (this outcome requires a U-shaped AC curve). this problem will consider an alternative example

    asked by john
  123. US history

    At the Battle of the Bulge: 1. Germany’s victory once again threatened an overall Allied defeat 2. the British repelled the German invasion force seeking to conquer Britain 3. German forces pushed the Allied amphibious invasion back into the English

    asked by HM
  124. Chemistry

    which contains the lowest % of hydrogen? HCl H3PO4 H2SO4 H20 is it HCL?

    asked by Matt
  125. English

    Analyze the realtion between Angela nd Gracey. It is correct? The book “Angela”, written by James Moloney, deals with the friendship of Angela and Gracey, which drifts apart by a historical conflict, because the girls come from two completely different

    asked by lue
  126. Chemistry

    The combustion of 0.1583 g benzoic acid increases the temperature of a bomb calorimeter by 2.93°C. Calculate the heat capacity of this calorimeter. (The energy released by combustion of benzoic acid is 26.42 kJ/g.) A 0.1710 g sample of vanillin (C8H8O3)

    asked by Bill
  127. US history

    The GI Bill did all of the following EXCEPT: 1. provide educational benefits for veterans 2. pay veterans large bonuses to remain in the military 3. provide medical treatment for veterans 4. help prevent a postwar depression 5. provide housing loans for

    asked by HM
  128. Calculus

    find the derivative of: (x^2+y^2)^2=x^2-y^2

    asked by Maria
  129. physics

    A 100 N force is applied to the side of a crate resting on a level floor. The crate has a mass of 50 kg. If the coefficient of static friction is ìs = .25, is the 100 N force enough to make the crate accelerate? Explain why or why not.

    asked by Anonymous
  130. communication

    In general, thesis or central idea is supported by claims; claims are supported by proof; and A.proof is supported by development,including details and examples B.proof is supported by the specific purpose C.proof is supported by solutions A?

    asked by Michelle
  131. CHEMISTRY

    I have an assignment to 'Research ionization energy levels and come up with 3 real world applications' and was told you look up lasers, plasma arcs and neon lights. Hours later, (lol) I'm still having a little trouble. Is there any way someone can explain

    asked by Jessica
  132. math

    1. Best Rentals charges a daily fee plus a mileage fee for renting its cars. Barney was charged $123.00 for 3 days and 300 miles, while Mary was charged $216.00 for 5 days and 600 miles. What does Best Rental charge per day, for mileage?

    asked by p
  133. psychology

    # 1.11 (1 pts.) While Pete was out playing touch football with his friends, he tripped, fell, and bumped his head on the ground. Immediately afterward, he was very disoriented and kept asking his friends what time it was. Pete may have experienced A)

    asked by adeniyi
  134. physics

    hi, reading over momentum notes and i just want to clarify a few things. if i had a system containing a cart that was moving (cart 1) and then a cart that was stationary (cart2)would there be any net external force acting on the system between the initial

    asked by dave
  135. Chemistry

    1. Out of all the "8" unknown gases, which one is the most likely to depart from the ideal gas behavior? Why? 2. Out of all the "8" unknown gases, which one is most likely to behave closest to that of an ideal gas? Why?

    asked by Michael
  136. chemistry

    A closed-tube manometer is filled with a nmineal oil whose density is 0.857 g/cm^3. What is the pressure in mm Hg if you measure a height of the mineal oil equal to 79.3 mm? The density of mercury is given as 13.586 g/cm^3.

    asked by samn
  137. precal

    okay, so I'm trying to figure out how to do this 3x3 matrix. I'm suppose to be finding the determent and using CRAMER'S RULE. Can someone please explain to me how to do this? 4x-y+z= -5 2x+2y+3z=10 5x-2y+6z=1

    asked by Anonymous
  138. Physics

    How can i find the area of the triangle vertices (2,-3,1), (1,-1,2)&(-1,2,3)

    asked by Lorry
  139. Algebra/trig

    How would i use my calculator to find the approximate value of the expression, cot 0.2748 rad

    asked by Anonymous
  140. calculus

    the tangent to the curve y=a/x +bx at (1,3) is parallel to the line whose equation is y=2x+1. find the values of a and b.

    asked by jimi
  141. English

    Thank you for your help. I think I made a mistake in my previous post (sentence 1). I added a few more examples I'm unsure of. 1) There is no point in (not of) worrying about his behaviour. He won't change it. It is no use/no good worrying about his

    asked by Henry2
  142. math

    A tire swing is suspended from a tree. The swings height (in feet) above the ground is modeled by the equation, h = -12cos(x) + 15. (x is the angle measured in degrees). What is the height of the swing, when the angle is 60 degrees?

    asked by Anonymous
  143. statistics

    Why should we check if your data is binomial?

    asked by Dee
  144. Geometry

    Steph has a line drawn on her paper with the equation y = 4x - 3. She wants to draw a line parallel to the given line, but through the point (2, 2). Describe, in words, the steps she needs to go through to find the equation of this new line.

    asked by Caitlyn Frazier
  145. math (algebra)

    decide whether the pair of lines is parrallel, perpendicular, or neither. 3x+4y+1 and 4x+3y=2

    asked by scooby
  146. math

    explain how to use addends of a sum 17

    asked by Anonymous
  147. statistics

    Given a normal distribution of scores with a mean of 100 and a SD of 10, compute z scores for the following raw valves: 95, 115, 80, 130.

    asked by Anonymous
  148. Anthropology Quiz

    1. The hydraulic theory of state formation is: (Points : 1) polities conquer societies which have irrigation. polities with irrigation systems conquer smaller political units. centralized government is necessary to organize and maintain irrigation systems.

    asked by Rabia
  149. algebra

    Describe and correct error [-13]- [13] = -13 - 13 = -26 thanks

    asked by ann
  150. physics

    a horizontal force of 290N is applied to a stationary wooden box in one direction, and a 800N horizontal force is applied in the opposite direction. What additional force is needed for the box to remain stationary?

    asked by brian
  151. English

    this crime is holy-------what kind of literary device is this?

    asked by Brian
  152. physics

    Calculate the density of the balls in this area. Each ball has a mass of 1 kg. Estimate the area taken up by the whole structure by looking in the Parameters Palette for the diameter of the balls and multiplying this by the number of balls on each side.

    asked by KAy
  153. Math

    A car is traveling south at a speed of 68 mi/h from Dallas toward San Antonio. Dallas is about 272 miles north of San Antonio. A truck is traveling north from San Antonio to Dallas at a speed of 71 mi/h. When and where will they pass each other? 1. Create

    asked by Suchi
  154. math

    Solve graphically y = 2x - 6 and y = -2x + 10

    asked by p
  155. physics

    A planet orbits its star in a circular orbit (uniform circular motion) of radius 1.62x10^11 m. The orbital period of the planet around its star is 37.0 years. Determine the following quantities for this orbital motion: Angular acceleration , Tangential

    asked by sand
  156. US history HELP

    Which of the following statements about the Social Security Act is NOT true? 1. It was based on a progressive tax that took a larger percentage of higher incomes. 2. It provided old-age pensions. 3. It was, according to Roosevelt, the “supreme

    asked by HM
  157. calculus

    a rectangular box with a square bottom is to have a volume of 1000 cubic inches. the bottom cost $100 per cubic inch, the sides are $25 per square inch and there is no top. what are the dimensions of the box that has materials costing the least

    asked by kenny
  158. Chemistry

    Consider the following data: * NH3(g) yields 1/2 N2(g) + 3/2 H2(g) delta H = 46kJ * 2 H2(g) + O2(g) yields 2 H2o(g) delta H = -484 kJ Calculate delta H for the reaction: 2 N2(g) + 6 H2O (g) yields 3 O2(g) + 4 NH3(g)

    asked by Shellby
  159. Algebr

    Each week you must do a minimum of 18 hours of homework. Participation in sports requires at least 12 hours per week. You have no more than 35 hours per week in total to devote to these activities. - Write a system of inequalities to model the situations.

    asked by Shadow
  160. US history

    Who was the economist whose ideas provided a theoretical justification of the New Deal? 1. Henry Morgenthau 2. Harold Ickes 3. Milton Friedman 4. Arthur Laffer 5. John Maynard Keynes Out of all of them the only economists are Jogn Maynard Keynes and Arthur

    asked by HM
  161. algebra

    Again I have no clue in figuring out this problem, please help: (3s^4-3s^3+3s^2+13s-6) + (s^5+8s^3+6s^2-3s+3) + (-6s^4+s^2-7s-6)=

    asked by jane
  162. History

    What does it mean to be a true idealist? In my book it said Roosevelt considered himself to be a true idealist, not President Wilson.

    asked by Anonymous
  163. History

    What is the difference between personal debt and social debt? What do each of them mean?

    asked by Anonymous
  164. Physics

    The current in a very long, tightly wound solenoid with radius a and n turns per munit length varies in time according to the equation i(t)=Ct^2, where the current i is in amps and the time t is in seconds, and C is constant with appropriate units.

    asked by Jasmine
  165. Physics

    A square conducting loop with sides of length L is rotation at a constant angular speed of, w (omega), in a uniform magnetic field of magnitude B. At time t=0, the loop is oriented so that the direction normal to the loop is aligned with the magnetic

    asked by Jasmine
  166. algebra

    1/4-2/3y=3/4-1/3y

    asked by lora
  167. Question (answer quick)

    I have a question it the reflection rules for literture they said for presentation i have to have 1 orgainal and 2 copies are to be submitted. Does that means a) I have to print out my real essay and make 2 more copies b) print out my real copy and make 2

    asked by Laruen
  168. physics

    A body is suspended vertically from an ideal spring of spring constant 3.4 N/m. The spring is initially in its relaxed position. The body is then released and oscillates about its equilibrium position. The motion is described by the following equation.

    asked by mat
  169. math

    a. Suppose a market research company finds that at a price of p = $40, they would sell x = 27 tiles each month. If they lower the price to p = $15, then more people would purchase the tile, and they can expect to sell x = 47 tiles in a month’s time. Find

    asked by spike
  170. scienceee

    what could be the result if a persons thymus gland was not functioning properly?

    asked by steph
  171. English

    I urgently need you to check these other examples. I can't find a good example with " The swan glides.../The swan hisses ..." Could you help me? 1)You will be asked to walk, trot and canter your horse around the ring. 2) The lion pounced on its pray. 3)

    asked by Henry2
  172. Physics

    A square conducting loop with sides of length L is rotation at a constant angular speed of, w (omega), in a uniform magnetic field of magnitude B. At time t=0, the loop is oriented so that the direction normal to the loop is aligned with the magnetic

    asked by Jasmine
  173. Chemistry

    a compound was analyzed and found to contain C,H,N,O, and Cl. When o.150g sample of this compound was burned, it produced 0.138 g of CO2 and 0.0566 g of H2O. All of the Nitrogen in another sample of mass 0.200 g was converted to 0.0238 g of NH3. Finally,

    asked by Arnol
  174. English

    1. What's this? - It is goggles. - It is trousers. - It is scissors. 2. What are these? - They are goggles. - They are trousers. - They are scissors. (Are the questions and answers all correct?)

    asked by rfvv
  175. math

    how do you simplify 3(x + 4) - 2(3x - 3)

    asked by linda
  176. calculus

    The figure below shows the curves y=square root of x, x=9, y=0 and a rectangle with the sides parallel to the axes and its left end at x=a. Find the dimensions of the rectangle having the maximum possible area.

    asked by Anonymous
  177. Math

    How to solve this? 10/(x^2-3x+5)=x+1

    asked by Wella
  178. Chemistry

    True or false? 1 mole of ozone has 1.8 x 10^24 atoms? correct if wrong THANK YOU!

    asked by Matt
  179. math

    Solve the system of equations x + 3y = 32 -3x + 2y = 3

    asked by p
  180. media and the american culture

    You are the chief editor of a large metropolitan daily newspaper. One of your reporters is caught fabricating sources and making up facts. How do you handle the situation, from disciplining the reporter to explaining it to your readers?

    asked by crying out for help!!!!
  181. History

    In what ways can we honor our veterans? Can i please get a link?

    asked by Porsha Leboitz
  182. Math

    How can i draw the graph of f(x)=2x^2-3x+2/x^2+1 please help me

    asked by Meron
  183. Business communication

    what are the importance of recognizing culture variations?is it similar to what are the importance of recognizing cultural differences?

    asked by Taskeen
  184. Spanish 1

    Does this question -- Does he like sandwiches? -- translate to ¿A él le gustan los sándwiches?

    asked by Anonymous
  185. math

    4. Solve the system of equations x + y = 6 x - y = -9

    asked by p
  186. algebra

    If the pattern below follows the rule "add 6 to the previous number and then multiply the result by 3" what is the third number in the pattern, based on the initial number 1? 1, __, Δ, .....

    asked by Anonymous
  187. MACROECONOMICS

    Suppose that there are 10 million workers in Canada and South Korea and each worker in Canada and South Korea can produce 4 cars per year. A Canadian worker can produce 10 tonnes of grain a year, whereas a South Korean worker can produce 5 tonnes of grain

    asked by cheryl
  188. math

    David takes 300 milligrams of medicine every day. Find this rate in grams per day

    asked by Anonymous
  189. algebra

    Minute hand of a clock is 10 inches long. how far does the tip of the minute hand move in 15 seconds? I got that=5 pi BUT What speed is it moving in miles/hr???? algebra - PsyDAG, Sunday, November 13, 2011 at 1:38am Assuming it does move 5 pi, convert 5 *

    asked by Angela
  190. Humanities

    What is the influence of the Dominican Order during the past and the present?

    asked by Anonymous
  191. Humanities

    What is the influence of the Dominican Order during the past and the present?

    asked by Anonymous
  192. algebra

    the length of a rectangle is 25cm twice its width the perimeter of the table must be less than 335 cm.find the maximum dimensions of the table if each dimension is an interger

    asked by Deon
  193. Math

    Add simplify by collecting like radical terms if possible 3ã45+4ã180

    asked by Allison
  194. Trig

    I have these sum and product property problems and I just want to make sure my work is right. Write equations expressing 1. cos 37degrees cos99degrees as a sum Answer: sin136+(-62) 2. sin4+sin7 as a product Answer: 2sin5.5 sin-1.5 3. cos 8x - cos 2x as a

    asked by Kevin
  195. Math/trig

    Solve the equation in the given Domain: 1-cos theta/ sin theta = sqr3, 0degrees

    asked by Dre
  196. math

    Multiply ã7(ã10-ã6)

    asked by Allison
  197. Word

    what does implementing means ? at my school website it says our school is implementing several new techniques for behavior management in the 2009-2010 school years

    asked by Laruen
  198. English

    Are there any tutors on here that are familiar with The Canterbury Tales?

    asked by Josh
  199. algebra

    Please I do not know how to figure this out: Identify the degree of each term of the polynormial and the degree of the polynormial of -4x^3 + 2x^2 + 7x + 1 degree of the first term, second, third, fourth terms and the polynomial

    asked by jane
  200. Math

    One of the "think outside the box" problems in my math work is really challenging me. I need to write and equation expressing: 8 cos theta + 15 sin theta as a single sinusoid I tried graphing to no avail and there is nothing in my textbook about turning an

    asked by Nathaniel. B
  201. US history HELP

    The Farm Security Administration: 1. provided federal subsidies for the expansion of large farms 2. concentrated on rehabilitating devastated soils on the Great Plains 3. offered loans to marginal farmers (so they could avoid falling into tenancy) and to

    asked by HM
  202. math

    SOLVE THE EQUATION BY USING EQUIVALENT FRACTIONS? 1. 12/21=X/7, What's X= 2. 12/16=6/Z, What's Z= 3. 4/14=20/Y, What's Y= 4. 16/14=8/Z, what's Z= PLEASE HELP ME!!!!!!!!!

    asked by Jasmine
  203. chemistry

    H2 + I2 2 HI. Looking for Keq: Complete the equation. Assume all concentrations are equilibrium constants in mol/L , M Temp in Celcius = 25 [H2] = .355 [I] = .388 [HI] = .0922 K eq = ??

    asked by Sarah
  204. english

    Is this a good paragraph with correct grammar? The Grilled Cheese Memorial and Museum is an interesting and educational place to visit. It is located in Elmwood, IL. There are many exhibits in the museum. The exhibits show all different varieties of

    asked by dakota
  205. Science

    This is for my science hw:Sound in an empty room can be very loud, with many echoes. Describe three ways to make the room quieter. The thing is that I looked online, asked my friends for help, and everything but no avail! This has to have a scientific

    asked by Lola
  206. 7th Grade English Essay - Diversity Means

    Ms. Sue or any other teacher Im done with my essay. I hope you guys like it. .... = school name im not aloud to tell someone that I not know of my school online only if someone I know enjoy !!!:) Here it is Diversity means the condition of being different.

    asked by Laruen
  207. Math

    Lalph Rauren was famous for discovering potential models as he walked the streets of New York. One day he spotted four girls who later became top models: Amy, Mary, Kay, and Beth. One was discovered walking through an apartment building, one in a coffee

    asked by Julie
  208. Science

    What determines the color of obkects that emit light and what determines the color of objects that do not? I wrote that color of objects that emit light is determined by the wavelenghts of light waves that they emit.Then I wrote that if an object does not

    asked by Lola
  209. US history HELP

    The use of atomic bombs against Japan had what significance? 1. They rendered the entire island of Honshu inhabitable for twenty-three years. 2. They prevented the Soviets from entering the war in Asia. 3. They shocked Germany into surrendering before

    asked by HM
  210. hISTORY PLEZ HELP!

    In what ways can we honor our veterans? Explain please but no links please, they are hard to understand.

    asked by Jerry Thompson
  211. Chemistry

    1 liter of a 1 M lithium hydroxide solution is added to 1 liter of a 1 M barium chloride solution, and a precipitate forms. What ions are left in solution after the reaction is complete?

    asked by Olivia
  212. English- Due @ 8

    Please chech for any errors and let me know if I need to change please correct it for me. Obesity is one of the major causes of health problems in the United States. According to Charles Schmidt, obesity is starting to catch up with smoking, which is

    asked by angela
  213. Calculus

    Find the point on the line 2x+7y-6=0 which is closest to the point (-5,5.

    asked by Joseph
  214. businees

    I have prepared my assignment but i am not sure if i am correct or not in punctuations,capitalization, sentences that i have framed and also if i have included everything in my prepared paragraph that is required for this assignment. please suggest me any

    asked by study
  215. geometry

    how do you construct a reflection, rotation, and a translation of a triangle?

    asked by Anonymous
  216. Geometry

    If 3 us an element of A and 3 is not an element of B, then which of the following is NOT true 3 is an element of B complement 3 is an element of A union B 3 is an element of A intersect B

    asked by Matt
  217. social studies

    explain whether you think it is better for the country to have a policy of isolationism or one of imperialism. help meee its a study question for tommorrows test i need to know the answer!

    asked by eric
  218. English

    1. What do you enjoy doing? 2. What do you like doing? 3. What do you like to do? 4. What do you enjoy? -I enjoy swimming. (Can all the sentences from #1 to #4 be the suitable questions for the answer?)

    asked by rfvv
  219. physics

    A ball of mass xg is release from a height of 20m . Calculate the time taken to fall to the ground.

    asked by Fine-girl
  220. math

    ana is 5 times as old as beth and 2 2/3 times as old as cathy. What fraction of cathy's age is Beth's?

    asked by kathleen catacutan
  221. physics

    A ball of mass xg is release from a height of 20m . Calculate the time taken to fall to the ground.

    asked by Fine-girl
  222. Proofs Geometry

    What is the statement and the reason for Given: and mEGF∠=60 mAGF∠=°90; Prove: mAGB∠=°30. Thank you!

    asked by Allan
  223. University College of Applied Sciences

    A rectangular object is 25 cm tall , 15 cm wide , and 10 cm deep .what is its volume in cubic centimeters , liters , and kiloliters ?

    asked by heba
  224. Math

    Solve: ((10)/(x^2-3x+45))=x+1

    asked by Grace
  225. statistics

    A new restaurant with 123 seats is being planned. Studies show that 63% of the customers demand a smoke free area. How many seats sould be in the non-smoking area in order to be very sure (mean+3StandardDeviation) of having enough seating there?

    asked by Judy
  226. math

    What is 3(x +4) - 2(3x - 3) simplified a) -3x + 18 b) -3x + 12 c) -9x + 18 d) -9x + 12

    asked by linda
  227. math

    write an equivalent expression using radical notation 625 3/4 Help

    asked by Allison
  228. media and the culture

    Write a 500- to 550-word essay response for Part Two. Comprehensive writing skills must be used. Explain the effect of relationships among television, movies, and electronic games with culture. Include the following: • How culture is reflected in movies

    asked by amanda
  229. US history

    Who was the economist whose ideas provided a theoretical justification of the New Deal? 1. Henry Morgenthau 2. Harold Ickes 3. Milton Friedman 4. Arthur Laffer 5. John Maynard Keynes Out of all of them the only economists are Jogn Maynard Keynes and Arthur

    asked by HM
  230. US history

    Which of the following statements about the Social Security Act is NOT true? 1. It was based on a progressive tax that took a larger percentage of higher incomes. 2. It provided old-age pensions. 3. It was, according to Roosevelt, the “supreme

    asked by HM
  231. US history

    . Chapter 30 The Second World War Question MC #42 (Points: 2) The use of atomic bombs against Japan had what significance? 1. They rendered the entire island of Honshu inhabitable for twenty-three years. 2. They prevented the Soviets from entering the war

    asked by HM
  232. trig

    Cos(-11/12) use the sum or difference formula to find the exact number

    asked by Lauren
  233. Physics

    A man 1.80 m tall walks at 2.00m/s perpendicular to a horizontal magnetic field of 5.0 T; that is, he walks between the pole faces of a very big magnet. Given that his body is full of conducting fluids, estimate the potential difference induced between his

    asked by Jasmine
  234. physics

    what is the temperature of a bunsen burner?

    asked by lissa
  235. Physics

    What is the rotational inertia of a solid iron disk of mass 45 kg, with a thickness of 3.44 cm and radius of 19.0 cm, about an axis through its center and perpendicular to it?

    asked by Anonymous
  236. Quantative reserach

    1. The average commute time via train from the Chicago O'Hare Airport to downtown is 60 minutes with a standard deviation of 15 minutes. Assume that the commute times are normally distributed. What proportion of commutes would be: a. longer than 80

    asked by Michael
  237. STATISTICS

    Pure Plastics Inc. manufacture molded plastic pieces. A sample of their raw material inventory is shown in the table below: Item Average Inventory (units) Value ($/unit) 128 400 3.75 234 300 4.00 233 120 2.50 236 75 1.50 239 60 1.75 240 30 2.00 678 20 1.15

    asked by cheryl
  238. English

    I urgently need you to check this rephrase.I added another sentence. "The ice did split with a thunder-fit; The helmsman steered us through." 1) The ice split as (?) the sound of the thunder and the helmsman steered them through. 2) The white Moon

    asked by Henry2
  239. Math

    How much money should be invested at an annual interest rate of 6.2% compounded continuously, to be worth at least $58,000 after 13 years.

    asked by MARY
  240. biology

    Please help to write a assignment on the topic Biotechnological applications in agriculture and medicine .how to write it?

    asked by noor
  241. Math

    Find the instantaneous rate of change of r with respect to theta for r = (theta/2)- (1/theta).

    asked by Emma
  242. Math

    differentiate 1-cosx/1+cosx

    asked by Emma
  243. English

    Could you please revise these sentences. I have two doubts concerning my previous post. 1) When I arrived at/on the farm (which preposition is best??) 2) A rabbit was thumping (its paw??) in the rabbit hutch 3) The theme of reversal of values is best

    asked by Henry2
  244. edu 310

    Power Point Presentation: The Professional Standards Movement i) How has the content and professional standards movement in K-12 changed the way educators teach students in America?

    asked by danie
  245. Accounting/Finance

    A for-profit hospital, has a high degree of business risk the preferred method of financing growth would be ? a. Short-term debt b. By increasing leverage c. Bonds d. Equity e. Long-term debt

    asked by Cydney
  246. Math (algerbra)

    How do i find the Gcf with veriables. For example. 15b^3c^2, 75ab^2c^3 (^ = exponent)

    asked by Jamie
  247. maths

    This is actually maths homework but the question sounds like geography: 1)Why do you think the UK is so high up in the list for mortality rates due to drug-related diseases. What do you think we can do to lower drug-related deaths in the UK? 2)Why do you

    asked by Nabiha
  248. Math

    What is the volume of a cone that has a radius of 3 cm and a height of 7 cm? (use 22/7 for pi) I got 594 cubic cm, but I have a feeling I'm terribly off.

    asked by Annie
  249. chemistry

    How many liters of base will neutralize 1 liter of acid?

    asked by Anonymous
  250. US history HELP

    Who was the economist whose ideas provided a theoretical justification of the New Deal? 1. Henry Morgenthau 2. Harold Ickes 3. Milton Friedman 4. Arthur Laffer 5. John Maynard Keynes Out of all of them the only economists are Jogn Maynard Keynes and Arthur

    asked by HM
  251. Math Help Please

    Let U = {9, 10, 11, 12, 13, 14, 15, 16, 17, 18}, A = {10, 12, 14, 16}, B = {13, 17}, and C = {10, 13, 16, 17, 18}. List all the members of each of the sets. (Enter solutions from smallest to largest. If there are any unused answer boxes, enter NONE in the

    asked by Margaret
  252. geometry

    What size would your 5ft X 7ft bed be on a blueprint with a scale of 1 block = 5" x 5"?

    asked by noble
  253. English Quick ?

    Is my grammar correct in this sentence and should it be effect or affect? Thank you A year later, and I still haven't completely figured out how to deal with what I'm going through and not let it affect how I go about everything else.

    asked by Samantha
  254. Calculus

    find the derivative of: (x^2+y^2)^2=x^2-y^2

    asked by Maria
  255. math

    This is actually maths homework but the question sounds like geography: 1)Why do you think the UK is so high up in the list for mortality rates due to drug-related diseases. What do you think we can do to lower drug-related deaths in the UK? 2)Why do you

    asked by Nabiha
  256. Math

    an estate was divided Among three heirs. After Andrea received 20% of the estate, her mother received 50% of what remained, leaving $20,000 for Andreas uncle. what was the total value of the estate?

    asked by Vic
  257. math is this right

    solve. -0.8

    asked by scooby
  258. Black Achievement Award

    How to get a Black Achievement Award in the 7th Grade?

    asked by Laruen
  259. Math

    What is the volume of a sphere with a radius of 7 cm? Use 22/7 as pi.

    asked by Anna
  260. Health

    Does Sickle Cell Disease involve a single gene or entire chromosome?

    asked by John
  261. ESL

    what is English Second Language?

    asked by Laruen
  262. Veterans Help!!!

    what are the reasons to help a veteran?

    asked by Zack
  263. Finance

    Suppose you just inherited a gold mine. This gold mine is believed to have three years worth of gold deposit. Here is how much income this gold mine is projected to bring you each year for the next three years: Year 1: $49,000,000 Year 2: $61,000,000 Year

    asked by Lamarr
  264. statistics

    e Chebyshev’s theorem to find what percent of the values will fall between 226 and 340 for a data set with a mean of 283 and standard deviation of 19.

    asked by dee
  265. social studies

    how did the aborignal people get thie food?

    asked by navjot
  266. English

    My task is to write a persuasive article for my chool website about an issue related to school meals. My title is 'Unhealthy heaven' My sub-heading is 'Those hungry humans crave for tasty foods. What will it be?' My introduction's main point is that '

    asked by Ruth
  267. chemistry

    how many moles of Na2SO4 are present in 850cm3 of a solution which has a concentration of .6 mol d/m3

    asked by Akeila
  268. Math

    Four friends contribute sums of money to a charitable organization in Haiti in the ratio of 2:3:5:8. If the largest amount comtributed is $18,500, calculate the total amount contributed by the four people.

    asked by Shelly
  269. Math

    I have a 4x4 grid of dots. How do I draw a straight line so I have 8 dots on each side of the line?

    asked by Susan
  270. english

    What kinds of things do parents teach their children in the animal kingdom are similar to the things our parents teach us?

    asked by Rebecca
  271. Physics

    The current in a very long, tightly wound solenoid with radius a and n turns per munit length varies in time according to the equation i(t)=Ct^2, where the current i is in amps and the time t is in seconds, and C is constant with appropriate units.

    asked by Jasmine
  272. history

    i need to know how cleopatra had an impact on the roman republic or the roman empire? thank you!

    asked by lauren
  273. Physics

    A helicopter hovers above the north magnetic field pole in a magnetic filed of magnitude 0.5G perpendicular to the ground. The helicopter rotors are 10m long, are made of aluminum, and rotate about the hub with a rotational speed of 10 000 rpm. What is the

    asked by Jasmine
  274. question

    is breast cancer a part of a disorder of the endocrine system?

    asked by steve
  275. home economics

    Explain ow the term 'expiry date' relates to food purchasing.

    asked by Chu-Chi
  276. Calculus

    You are an engineer in charge of designing the dimensions of a box-like building. The base is rectangular in shape with width being twice as large as length. (Therefore so is the ceiling.) The volume is to be 1944000 m3. Local bylaws stipulate that the

    asked by Veronica
  277. edu-310

    How has the influence of content and state standards improved what content is being taught in the classroom? What are some possible negative effects this mandate has had on American education? Explain.

    asked by danie
  278. Psy 201

    Fill in the blank- 5points each: Please fill in the blank with a word of phrase that best answers the questions. Be sure to highlight your answer, use bold font or select a different color of lettering to distinguish your answer. 1. Two biological causes

    asked by Samanath
  279. algebra

    simplify by collecting like terms if possible 7sqrt20-8sqrt5

    asked by Phillip
  280. bio

    if something is lipid solube? why might that be a good thing? for example cholorphyll and beta carotene are both lipid soluble due to thier hydrocarbon chain. why is it important that both of these molecules are lipid soluble?

    asked by justwondering
  281. Math

    What is 5x^2y^-3 over 25x^6y^2 in simplest form

    asked by Zach
  282. MATH--PLEASE HELP

    Let W be the set of all continuous fuctions from the set of real numbers R to R. For f, g in W define f+g by (f+g)(x)=f(x)+g(x) and (f*g)=f(x)g(x). Verify that W is a commutative ring. Does W have unity? Why or why not?

    asked by Melissa
  283. Chemistry

    Does helium have a smaller volume than hydrogen?

    asked by Michael
  284. Chemistry

    I have an assignment to 'Research ionization energy levels and come up with 3 real world applications' and was told to look up lasers, plasma arcs and neon lights. Hours later, (lol) I'm still having a little trouble. Is there any way someone can explain

    asked by Jessica
  285. Physics

    A square conducting loop with sides of length L is rotation at a constant angular speed of, w (omega), in a uniform magnetic field of magnitude B. At time t=0, the loop is oriented so that the direction normal to the loop is aligned with the magnetic

    asked by Jasmine
  286. Physics

    A helicopter hovers above the north magnetic field pole in a magnetic filed of magnitude 0.5G perpendicular to the ground. The helicopter rotors are 10m long, are made of aluminum, and rotate about the hub with a rotational speed of 10 000 rpm. What is the

    asked by Jasmine
  287. Business communication

    can someone tell me what are the 5 strategies for overcoming communication barriers?

    asked by Taskeen
  288. Physics

    Suppose vectors a&b, if a cross b=c. Show that c is perpendicular to a&b.

    asked by Emily
  289. English

    I need to revise animal sounds. I wonder if there are children's short poems, songs or riddles I can use to memorize them. 1) What sound does the cat (all other animals) make? I made up a series of short sentences to help memorization. 2) When I arrived

    asked by Henry2
  290. algebra

    There is one rectangle in Figure 1 There are 3 rectangles in Figure 2 (two small and the one made of two) There are 6 rectangles in Figure 3 (three small, two made of two and one made of three) What figure number corresponds to 28 small congruent

    asked by Anonymous
  291. Mat

    What is mean median and mode

    asked by Andrea
  292. ---college algebra (average rate of change)---

    If the average rate of change of g(x) from x = 1 to x = 9 is 20, and if the average rate of change of g(x) from x = 9 to x = 21 is 40, then what is the average rate of change of g(x) from x = 1 to x = 21?

    asked by Brianna
  293. Econ please help

    Suppose local govt decides that a tax is the best way to address the inefficiency created by outdoor concerts. Assuming the social cost curve and the private cost curve are parallel to each other, how much does the tax on concerts have to be to achieve the

    asked by Anil
  294. Science

    How can you experimentally determine the weight of your own head?

    asked by Anonymous
  295. math

    Let R be a commutative ring in with a^2=a for every element a. Show that a+a=0 for all a in R

    asked by Melissa
  296. math questions

    is there a site i could use to help me with compund inequalities?

    asked by scooby
  297. CHEMISTRY

    I have an assignment to 'Research ionization energy levels and come up with 3 real world applications' and was told you look up lasers, plasma arcs and neon lights. Hours later, (lol) I'm still having a little trouble. Is there any way someone can explain

    asked by Jessica
  298. Chemistry

    I have an assignment to 'Research ionization energy levels and come up with 3 real world applications'. I'm not so sure how to do this. Any help would be appreciated.

    asked by Jessica
  299. science - biology

    What is the health advantage that can result in sickle cell hemoglobin?

    asked by Courtney