Questions Asked on
November 14, 2011

  1. calculus

    a boat leaves a dock at 2:00 pm and travels due south at a speed of 20 km/h. Another boat has been heading due east at 15 km/h and reaches the same dock at 3:00 pm. at what time were the two boats closest together

    asked by LALA
  2. physics

    A rocket is fired in deep space, where gravity is negligible. In the first second it ejects 1/160 of its mass as exhaust gas and has an acceleration of 15.1 m/s^2.What is the speed v_gas of the exhaust gas relative to the rocket?

    asked by paul
  3. Physics

    A student initially at rest on a frictionless frozen pond throws a 1 kg hammer in one direction. After the throw the hammer moves off in one direction while the student moves off in the other direction. Which of the following correctly describes the above

    asked by Mae
  4. Chem

    Seawater contains approximately 3.5% by mass and has a density of 1.02 g/mL. What volume of seawater contains 5.5g of sodium

    asked by Haley
  5. Chemistry

    The Lewis dot diagram for iodite (IO2-) is given below. Using your VSEPR information, determine the most likely molecular geometry (shape) for iodite.

    asked by Anonymous
  6. Calculus

    A stone is dropped from the edge of a roof, and hits the ground with a velocity of -195 feet per second. How high is the roof? .

    asked by Anonymous
  7. Math

    The illumination of an object by a light source is directly proportional to the strength of the source and inversely proportional to the square of the distance from the source. If two light sources, one four times as strong as the other, are placed 11 ft

    asked by Samantha
  8. Chemistry

    If a nitrogen gas sample occupies a volume of 2.55 L at 22.0 degrees Celsius and 0.860 atm, what is the mass of the N2 gas?

    asked by Mallory
  9. Math

    A Norman window has the shape of a rectangle surmounted by a semicircle. (Thus the diameter of the semicircle is equal to the width of the rectangle.) If the perimeter of the window is 24 ft, find the value of x so that the greatest possible amount of

    asked by Ashleigh
  10. Chemistry

    How many grams of C4H10O can be melted by 2.0 x 103 J? Given ÄHfus = 7.27 kJ/mol

    asked by Frank
  11. physics

    A daredevil jumps a canyon 12 m wide . To do so , he drives a car up a 19 degree incline. a) What is the minimum speed must he achieve to clear the canyon ? b) If the daredevil jumps at this minimum speed, what will his speed be when he reaches the other

    asked by lala mon
  12. Spanish1 help

    Fill in the blank with the correct conjugation of the verb in parentheses. ¿(Trabajar) __________ tú por la tarde? When entering your answers for fill in the blank and essay questions, please be sure to use accent marks and/or correct punctuation to

    asked by Darius
  13. Chemistry

    Use the equations with the enthalpy information given below to calculate the ÄH° for the reaction: S(s) + O2(g) --> SO2(g) S(s) + 3/2 O2(g) --> SO3(g) ÄH° = -395kJ 2 SO2(g) + O2(g) --> 2 SO3(g) ÄH° = -198.2 kJ

    asked by Anonymous
  14. chemistry

    (a) A person drinks four glasses of cold water (3.0°C) every day. The volume of each glass is 2.5x10^2 mL. How much heat (in kJ) does the body have to supply to raise the temperature of the water to 37°C, the body temperature? (b) How much heat would

    asked by Amber
  15. Chemistry

    Which of the two is the stronger base?Give your reason. (a) HPO4 2- or PO4 3- (b)HS- or S2-

    asked by Dewa
  16. chemistry

    A 23.596 g sample of aqueous waste leaving a fertilizer manufacturer contains ammonia. The sample is diluted with 79.504 g of water. A 13.803 g aliquot of this solution is then titrated with 0.1098 M HCl. It required 29.02 ml of the HCl solution to reac

    asked by Mike
  17. chemistry

    Which of the following quantum numbers describes the shape of an orbital? A) principle quantum number (n) B) magnetic quantum number (ml) C) spin quantum number (ms) D) Schrodinger quantum number (S) E) (azithmal) angular momentum quantum number (l)

    asked by Teresa
  18. Math

    Without using calculator,evaluate Sin15 deg,Cos 15 deg,Sin 75deg. O need the answer urgently pls.

    asked by Prince
  19. physics

    a force of 20 n is applied to a 10 kg mass on a level frictionless surface what is the acceleration of the mass?

    asked by irene
  20. Reading

    What is the rhyme scheme of "Great Glorious Gobs"? A. ABAB B. BBBA C. AABB D. AABA

    asked by Bob
  21. physics emegency!

    A 16 kg object with a velocity 7.5 m/s explodes into two equal fragments. One flies off with a velocity 2.5i -2.5j m/s. What is the velocity of the other fragment in vector notation?

    asked by joe
  22. Physics

    Please try to be clear in your explanation!! A swimmer bounces straight up from a diving board and falls feet first into a pool. She starts with a velocity of 5.00 m/s, and her takeoff point is 1.50 m above the pool. (a) How long are her feet in the air?

    asked by Lindsey
  23. Geometry-Please Help

    A man has a garden 10 meters square to fence. How many fence posts are needed if each post is 1 meter from the adjacent posts?

    asked by christy
  24. Chemistry

    For the following reaction: Al2(SO4)3 + 6NaOH = 2Al(OH)3 + 3Na2SO4 How many moles of Na2SO4 can be made with 3.2 moles of NaOH and excess Al2(SO4)3?

    asked by Carrie
  25. chemistry

    A sample of neon gas at 1.20 atm compresses from 0.250 L to 0.125 L. If the temperature remains constant, what is the final pressure?

    asked by Mallory
  26. Chemistry

    What is the trend in atomic size in the series of Group IIA elements Be through Ra?

    asked by Tom
  27. Chemistry

    If solution A had a pH of 8, and solution B had 1,000 times this hydrogen ion concentration what would be the pH of solution B, and would solution B be acidic or basic?

    asked by Kristin
  28. Advanced Functions

    The earth rotates on its axis once every 24 hours. How long does it take Earth to rotate through an angle of 4(pi)/3?

    asked by Rebecca
  29. Physics

    A ball moving at +3.0 m/s along a table rolls off a table and lands on the ground 2.0 m away. How high was the table?

    asked by Cali
  30. Reading

    Which line in the poem contains an example of onomatopoeia? A. Line 6 B. Line 7 C. Line 14 D. Line 15 Line 6: and you'll forget all about that broccoli you chop Line 7: Rock candy looks like beautiful glass Line 14: but spinach tastes all gritty and sandy

    asked by Bob
  31. READING

    Which line in the poem contains an example of onomatopoeia? A. Line 6 B. Line 7 C. Line 14 D. Line 15 Line 6: and you'll forget all about that broccoli you chop Line 7: Rock candy looks like beautiful glass Line 14: but spinach tastes all gritty and sandy

    asked by Bob
  32. Chem

    Rank thefollowing elements in order of decreasing atomic radius. N, B, Be, Li? I thought it was N, B, Be, Li

    asked by Anna
  33. Accounting

    A process began the month with 3,000 units in the beginning work in process inventory and ended the month with 2,000 units in the ending work in process. If 12,000 units were completed and transferred out of the process during the month, how many units

    asked by MAVIS
  34. math

    A roll of fabric was 132 inches long. A customer bought 3 feet of the fabric. How many feet of fabric were remaining?

    asked by Sanaya
  35. chemistry

    3.5g of CuCl2.2H2O were dissolved and reacted with excess Na2SO3 in the presence of HCl. After filtration, 1.5g of CuCl crystals was obtained. Calculate the %yield.

    asked by Shannon
  36. Trig

    The path of a projectile fired at an inclination t0 to the horizontal with initial velocity v feet per second is a parabola. The horizontal distance R, in feet, that the projectile travels is given by R = v2sin(2t)/32.2. What is R if v = 152 and t = 74?

    asked by Jared Smith
  37. 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
  38. calculus

    The force F (in Newtons) required to move a box of mass m kg in motion by pulling on an attached rope is F(x) = f m g/(cos(x))+ f (sin(x)) where x is the angle between the rope and the horizontal, f is the coefficient of static friction and g = 9.8 m/s^2.

    asked by nate
  39. chemistry

    If water is saturated with CaCO3, how much of it has to evaporate to deposit .250g of CaCO3. Ksp CaCO3 = 4.96 x 10^-7

    asked by Sarah
  40. physics

    A 4.90 kg particle moves along the x axis. Its position varies with time according to x = t + 3.4t3, where x is in meters and t is in seconds. (a) Find the kinetic energy at any time t. (Accurately round any coefficient to exactly two decimal places. Use t

    asked by carlton
  41. Physic

    An electric motor rotating a workshop grinding wheel at a rate of 114 rev/min is switched off. Assume the wheel has a constant negative angular acceleration of magnitude 2.10 rad/s2. (a) How long does it take for the grinding wheel to stop?

    asked by Anthony
  42. Geometry

    A 4-inch-thick concrete slab is being poured for a circular patio 10 feet in diameter. Concrete costs $50 per cubic yard. Find the cost of the concerte, to the nearest cent. Show how you come to your answer.

    asked by christy
  43. physics

    A 34.0 kg child slides down a long slide in a playground. She starts from rest at a height h1 of 22.00 m. When she is partway down the slide, at a height h2 of 11.00 m, she is moving at a speed of 8.40 m/s. Calculate the mechanical energy lost due to

    asked by Anonymous
  44. Physics help please!

    The three 500 g masses in the daigram are connected by massless, rigid rods to form a triangle. What is the triangle's rotational energy (in J) if it rotates at 1.50 rev/s about an axis through the center? (Diagram shows equilateral triangle with 500g

    asked by Me
  45. Chemistry

    What is the molecular geometry (shape) if you have 3 single bonds and 1 lone pair around the central atom?

    asked by Angela
  46. grammar

    Talking is not allowed in class. Talking is what part of speech?

    asked by Kathy
  47. Finance

    Assume WhirledCom has an issue of 15 year $1000 par value bonds that pay 6% interest, semiannually Futher asssume that today's required rate of return on htese bonds is 9% How much would these bonds be worth today? Round off to the nearest $1

    asked by Debbie
  48. math

    for the polynomial shown below, find f(-1). f(x)=3x^4-x^3+4x-2

    asked by Anna
  49. geometry

    Given: In triangle ABC,

    asked by alisa
  50. physics

    A soccer player kicks a ball into the air at an angle of 34 degrees above the horizontal . The initial velocity of the ball is 25 m/s How long is the soccer ball in the air ?

    asked by lala mon
  51. algebra

    if mary takes 3 hours to mow a lawn and sally takes 5 hours how long will it take them to mow it together

    asked by bill
  52. Physics

    A coordinate system (in meters) is constructed on the surface of a pool table, and three objects are placed on the table as follows: a 4.0 kg object at the origin of the coordinate system, a 5.0 kg object at (0, 2.0), and a 9.0 kg object at (4.0, 0). Find

    asked by Anonymous
  53. Chemistry

    For the following reaction: 6ClO2 (g) + 3H2O (l) = 5HClO3 (l) + HCl (g) If a chemist wants to make 55.0 g of HCl, how much ClO2 is needed?

    asked by Carrie
  54. Math

    An airplane over the Pacific Ocean sights an atoll at an 7° angle of depression. If the plane is 850 m above the water, how many kilometers is it from a point 850 m directly above the atoll?

    asked by dale
  55. Chemistry

    Use Equation 7.1 and assuming that core electrons contribute 1.00 and valence electrons contribute nothing to the screening constant,S , calculate Zeff for these two ions. Repeat this calculation using Slater's rules to estimate the screening constant, S.

    asked by Collin
  56. biology

    during translation, the amino acid detaches from the transfer RNA attaches to the end of a growing protein chain when?

    asked by addi
  57. Chemistry

    Write the equilibrium constant expression, K, for each of the following reactions. Where appropriate, designate the K as Ksp. 2H2(g) + O2(g)2H2O(g) 2Hg(l) + Cl2(g) Hg2Cl2(s)

    asked by Kevin
  58. Chemistry

    What is the weakness of the Bronsted-Lowry acids and bases theory?

    asked by Dewa
  59. Math

    Based on its degree, what kind of polynomial is this? h(x)=-x^2+2x-5

    asked by Anna
  60. math

    the grade of a road is its slope given as a percent. for example, a road with a 6% grade has a slope 6/100. it rises 6 feet for every 100 feet of horizontal run. describe a 100% grade. Do you think you could drive up it?could you walk up it? Is it possible

    asked by manal HELP ME
  61. physics

    An energy-efficient lightbulb, taking in 25.0 W of power, can produce the same level of brightness as a conventional bulb operating at power 100 W. The lifetime of the energy-efficient bulb is 10,000 h and its purchase price is $17.00, whereas the

    asked by carlton
  62. SCIENCE(FOSSILS)

    Soft body parts may be preserved for long periods of time by___ IS IT AMBER

    asked by Adam
  63. Physics

    A metal sphere has a charge of +12uC(microcoulombs). What is the net charge after 2.1 x 10^13 electrons have been placed on it?

    asked by Kay
  64. chemistry

    I need to find out Molar solubility of CuS. How many grams of CuS are present in 15.0 L of a saturated CuS solution,

    asked by Ashley
  65. Chemistry

    I have answered this as best as I can please can you check and help me with the ones I don't have a clue about? Thank you Which of the moelcules listed below possesses a permanent dipole? Think about the shape of the molecule and look at the

    asked by ?
  66. Physics

    This question was posted earlier but the explanation given was confusing. The three 500 g masses in the daigram are connected by massless, rigid rods to form a triangle. What is the triangle's rotational energy (in J) if it rotates at 1.50 rev/s about an

    asked by Me
  67. Chemistry

    A 23.596 g sample of aqueous waste leaving a fertilizer manufacturer contains ammonia. The sample is diluted with 79.504 g of water. A 13.803 g aliquot of this solution is then titrated with 0.1098 M HCl. It required 29.02 ml of the HCl solution to reac

    asked by Mike
  68. geometry

    The measure of an interior angle of a regular n-gon is 140 degree. How many sides are in the regular polygon?

    asked by alisa
  69. Chemistry

    C15H30 is a hydrocarbon that reacts with oxygen gas to give carbon dioxide and water. Calculate the mass of water (grams) formed when 724.05 grams of the hydrocarbon reacts with the oxygen gas.

    asked by Kim
  70. English

    I urgently need you to revise these sentences (instructions), please. 1)Explain to a friend of yours who has never flown what he/she should do before boarding a plane. 2) Talk about the place where you live using the following grid: . – What is your town

    asked by Henry2
  71. physics

    An electric guitar’s amplifier is at a distance of 4.6 m. Find the intensity of its sound waves when its power output is 0.18 W. Answer in units of W/m2

    asked by Anonymous
  72. chemistry

    When gas is burned: CH4 + 2O2 = CO2 + 2H2O, how many moles of water are produced when 6.2 mol of methane are burned?

    asked by Lisa
  73. Science

    What is the difference between the focus of an earthquake and its epicenter?

    asked by Shirley
  74. statistics

    . As a part of their customer-service program, United Airlines wanted to select 10 passengers from today's 9 A.M. Chicago-Tampa flight to be interviewed regarding airport facilities, service, and amenities in the waiting area. Each passenger was given a

    asked by Latoya
  75. math

    what's the slope of the roof on adobe house?why might a roof in connecticut be steeper than a roof in the desert?

    asked by manal HELP ME
  76. math

    cos theta = 5/13 with -pi/2 < theta

    asked by Yul
  77. Geometry

    How many pieces of square floor tile, 1 foot on a side, would you have to buy to tile a floor that is 11 feet 6 inches by 8 feet?

    asked by christy
  78. physics

    A hockey puck has a mass of 0.125 kg and is at rest. A hockey player makes a shot, exerting a constant force of 32.5 N on the puck for 0.16 s. With what speed does it head toward the goal?

    asked by Fillintheblank
  79. Physics

    Flooded Basement Water is pumped steadily out of a flooded basement at a speed of 5.5 m/s through a uniform hose of radius 0.8 cm. The hose passes out through a window 3.1 m above the waterline. What is the power of the pump?

    asked by Alex
  80. Physics

    The three 500 g masses in the daigram are connected by massless, rigid rods to form a triangle. What is the triangle's rotational energy (in J) if it rotates at 1.50 rev/s about an axis through the center? (Diagram shows equilateral triangle with 500g

    asked by Please Help!
  81. math

    Lena Horn bought a Toyota Tundra for $30,000 with an estimated life of 5 years. The residual value of the truck is $5,000. Assume a straight line method of depreciation (a) what will be the book value of the truck at the end of year 4 (b) If tyhe chevy

    asked by Anonymous
  82. geometry

    If the sum of the measures of the interior angles of a convex n-gon is equal to the sum of the measures of the exterior angles, how many sides does the n-gon have?

    asked by alisa
  83. math

    using problem 17-21 calculate the first 2 years depreciation assuming the units of production method. this machine is expceted to produce 120,000 units. in year 1 it produced 19,000 units and in year 2 38,000 units problem 17-21 Jim company bought a

    asked by Anonymous
  84. Chemistry

    Ionic bonding typically occurs when a ______________ bonds with a ______________

    asked by Help
  85. physics.pls help

    Why is it important to asaume that a rope under tension is taut and does not stretch. pls help

    asked by ted
  86. Corporate Finance

    You can insulate your home for $7,200. You figure you can save 15% per year on your heating bill if you insulate. Your home was bought 15 years ago for $38,500. You figure real estate prices have gone up 16% each year. You plan to live in the house another

    asked by Sniper619
  87. chemistry

    In a reaction vessel, the following reaction was carried out using 0.250 mol of NH3 and 0.100 mol of N2, 4NH3(l) + N2 (g) = 3N2H4 (l) what is the compositon in moles in the vessel when the reaction is completed? Is the answer: 0 mol NH3, 0.063 mol N2, and

    asked by Lisa
  88. Math

    Jeff Associates borrowed $30,000. The company plans to set up a sinking fund that will repay the loan at the end of 8 years. Assume a 12 % interest rate compounded semiannually. What must Jeff pay into the fund each period of time?

    asked by Anonymous
  89. algebra

    A 4m by 6m rug covers half of the floor area of a room and leaves a uniform strip of bare floor around the edges. What are the dimensions of the room?

    asked by amanda
  90. ACCOUnting

    Chen Company manufactures basketballs. Materials are added at the beginning of the production process and conversion costs are incurred uniformly. Production and cost data for the month of July 2010 are as follows. Production Data-Basketballs Units Percent

    asked by BILLY
  91. physics

    Suppose the ball is kicked horizontally with an initial speed of 9.37m/s. If the ball travels a horizontal distance of distnace 85 meters, how tall is the mountain?

    asked by Brooke
  92. Chemistry

    Recently, there has been much concern about pollution in the home from radon, a radioactive gas whose elemental molar mass is 222 g/mol. The Environmental Protection Agency say that a level or radon of 3.6 X 10-11 giL of air is unhealthy. At this level,

    asked by Arnol
  93. algebra

    A worker placed white tiles around black tiles in the pattern shown in the three figures bellow. Based on this pattern, how many tiles would be needed for 14 black tiles?

    asked by Anonymous
  94. ph

    A 20.0 kg block is connected to a 30.0 kg block by a string that passes over a light, frictionless pulley. The 30.0 kg block is connected to a spring that has negligible mass and a force constant of 300 N/m, as shown in the figure below. The spring is

    asked by carlton
  95. Chemistry

    For the following Reaction: 2AgNO3 + CaBr2 = 2AgBr + CaN2O6 If a chemist starts with 12.0g AgNO3, how many grams of CaBr2 must be added to use up all of the AgNO3?

    asked by Carrie
  96. History

    Please Help. I would like to ask if it would have been possible with out the prior development of the Enlightenment? For instance, if some of the main issues that troubled Martin Luther (such as the Catholic Church's practice of requiring "tributes" for

    asked by John
  97. physics

    A 20.0 kg block is connected to a 30.0 kg block by a string that passes over a light, frictionless pulley. The 30.0 kg block is connected to a spring that has negligible mass and a force constant of 300 N/m, as shown in the figure below. The spring is

    asked by carlton
  98. Chemistry

    What is the electron geometry if you have 4 electron groups around the center atom?

    asked by Lisa
  99. English

    The teacher should take attendance every day. Verb phrase is should take. IS this a linking or action verb and why?

    asked by Kelley
  100. physics

    It has been suggested that rotating cylinders about 9 mi long and 5.1 mi in diameter be placed in space and used as colonies. What angular speed must such a cylinder have so that the centripetal acceleration at its surface equals the free-fall acceleration

    asked by Anonymous
  101. math AIG (Ms.Sue)

    Find the range,median,mode,and mean. 97,88,93,90,85,100 range:_ median:_ mode:_ mean:_

    asked by lidia
  102. Finance

    For the first time in a very long time (perhaps ever!), the concept of financial risk and risk management has become a topic of concern at Presidential press conferences. Such concern has centered on esoteric financial products such as derivatives that are

    asked by ALLIE
  103. algebra

    How do I solve a linear equation using equality properties?

    asked by mom
  104. Science

    Which 6 are energy from sunlight?? nuclear energy,geothermal energy,tidal energy,fusion energy,wind,hydroelectric energy,solar energy,biomass,fossil fuels,ocean thermal,energy conversion

    asked by Jason
  105. Physics

    Find the centripetal accelerations at each of the following points due to the rotation of Earth about its axis. (a) a point on the Equator of Earth ? m/s2 (b) the North Pole ? m/s2

    asked by Anonymous
  106. physics

    For safety in climbing, a mountaineer uses a nylon rope that is 65 m long and 0.9 cm in diameter. When supporting a 92-kg climber, the rope elongates 2.0 m. Find its Young's modulus.

    asked by jim
  107. Accounting

    Materials costs of $300,000 and conversion costs of $321,300 were charged to a processing department in the month of September. Materials are added at the beginning of the process, while conversion costs are incurred uniformly throughout the process. There

    asked by MAVIS
  108. chemestry C

    how many moles of aluminum oxide can be produce from 12.8 moles of oxigen gas reacting with execess aluminum

    asked by lola
  109. 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
  110. physics

    Let a force of 1500 Newtons act through a distance of 200 meters on a 1500 kg car which starts from rest. a. What is the work done? b. What is the final velocity? c. What is the car's momentum? d. What is the car's change in momentum? e. What is the car's

    asked by Ryan
  111. math

    Can someone help with me this question? 1. Lea spent $25 of the money she saved. She still has 60% of her money left. How much does have left? 0.60 x 25=$15? 2. A 2.6L container of juice costs $3.00. How much are you paying for 1 L?

    asked by Joey
  112. socials

    for the question how did canadas policy of total war change the economy? why was the policy necessary? for this one i wrote that canada manufacture lots of things like military vehicles, tanks. Ships for navy, new planes, and bombers, military vehicles and

    asked by Mohammad
  113. Geometry

    A man has a garden 10 meters square to fence. How many fence posts are needed if each post is 1 meter from the adjacent posts? Question says to show work.

    asked by christy
  114. Chem

    The electrochemical cell described by the balanced chemical equation has a standard emf of -0.25 V. Calculate the value (kJ) for the ΔG˚ of the cell. Round your answer to 3 significant figures. MnO2(s) + Pb2+(aq) → Mn2+(aq) + PbO2(s) St. Red. Pot. (V)

    asked by Jess
  115. Trig

    Solve the equation in the given domain cos 4x + cos 2x = 0, 0

    asked by Mark
  116. social studies

    how did the wright brothers invention change the world?

    asked by Anonymous
  117. Introduction to Psychology

    Both Albert's mother and father had dropped out of high school. His brother left school in the eighth grade. Based on the performance of his family members, Albert does not expect that he will complete high school. He had developed a(n): a. availability

    asked by Anonymous
  118. Physics help!

    How far from the center of the Earth (in km) is the center of mass of the Earth + satellite system if the satellite has a mass of 6560 kg and is in orbit 46200 km above the surface of the Earth. The mass of the Earth is 5.98 * 10^24 kg and the radius of

    asked by Me
  119. Physics

    A small block of mass m1 = 0.500 kg is released from rest at the top of acurved-shaped frictionless wedge of mass m2 =3.00 kg, which sits on a frictionless horizontal surface as inFigure P9.60a. When the block leaves the wedge, its velocity ismeasured to

    asked by Marie
  120. chemistry

    Discussion Question 1 State three examples each of acids, bases, and salts commonly used in therapeutic processes. From the examples you state, select one acid, one base, and one salt and describe how and where they are used in therapeutic processes.

    asked by carolyn
  121. Math

    A fence 8 ft tall runs parallel to a tall building at a distance of 4 ft from the building. What is the length of the shortest ladder that will reach from the ground over the fence to the wall of the building?

    asked by Emily
  122. Physics

    It has been suggested that rotating cylinders about 9 mi long and 5.1 mi in diameter be placed in space and used as colonies. What angular speed must such a cylinder have so that the centripetal acceleration at its surface equals the free-fall acceleration

    asked by Anonymous
  123. History

    How does the process of quarantine change from the Indians (small pox), Italians (typhoid) to the Chinese (bubonic plague)? Explain.

    asked by Curt
  124. world history

    Which of the following statements is true of the Ice Age that began 150,000 years ago? A. Many humans enjoyed high levels of nutrition and long days of leisure. B. Culture varied greatly throughout the inhabited world. C. Humans didn't use highly

    asked by firedup
  125. Physics

    What is the angular momentum (in kg*m*m/s) of a 790 gram symmetrical rotating bar which is 2.85 m long and spinning at 245 rpm about the center of the bar?

    asked by dan
  126. Chem

    The galvanic cell described by the cell notation has a standard emf (electromotive force) of 4.05 V. Calculate the value (kJ) for the ΔG˚ of the cell. Round your answer to 3 significant figures. Mn(s) l Mn2+(aq) ll F2(g) l F-(aq) l Pt(s) St. Red. Pot.

    asked by Jess
  127. Calculus

    The sun is passing directly over an 80ft. tall building. The shadow is 60ft. long when the angle (theta) that the sun makes with level ground is increasing at the rate of .327 radians per minute. At what rate is the shadow decreasing. (express your answer

    asked by Michael
  128. Calc

    A rational function f(x) contains quadratic functions in both the numerator and denominator. Also the function f(x) has a vertical asymptote at x=5, a single x intercept of (2,0) and f is removeably discontinuous at x=1 because the lim x-> 1 is -1/9. Find

    asked by Gretchen
  129. Chemistry

    In VSEPR, which of the following is considered a single electron group?

    asked by Frances
  130. Math

    How do you do this..i have the answer i just need a step by step way to solve this.. sec(sin^-1 (2/5))

    asked by Trig
  131. algebra

    An annuity pays 7300 dollars on January 1 of each year, starting on January 1, 2000. If 16 payments are made and the effective rate of interest is 8.5 percent, what is the present value of the annuity on January 1, 1999?

    asked by Anonymous
  132. physics

    A car (m = 770.0 kg) accelerates uniformly from rest up an inclined road which rises uniformly, to a height, h = 45.0 m. Find the average power the engine must deliver to reach a speed of 20.9 m/s at the top of the hill in 19.5 s(NEGLECT frictional losses:

    asked by Anonymous
  133. Rati and Rates Problems

    1.Write two equivalent ratios for the given ratio. a. 4/12 b. 11/33 SHOW WORK

    asked by kelly
  134. geometry

    Dru is challanged by her geomtry teacher to estimate the height of the school flag pole without measuring. She decided to walk off the length of the shadow cast by the pole by successively walking the noted length of her own shadow. If Dru is 5ft 6inches

    asked by alisa
  135. Math

    input output 12 10 ? 16 32 ? 62 35 70 39 86 ? what's my rule?

    asked by Thomas
  136. Math

    A famous detective was called in to solve a baffling murder mystery. He determined there was only one cause of death along with the following facts: a.Mr. Harold, the murdered man, was killed by a blow on the head with a brass candlestick. b.Either his

    asked by Dell
  137. Chemistry

    Please help me arrange these elements in decreasing order of metallic property. I, Mg, Al, Rb, Ca Thank You

    asked by Jennifer
  138. Chemistry

    How many 9.5 gram ice cubes will you have to put into 500 ml of water to cool the water from 22°C to 18°C?

    asked by Walt
  139. chemistry

    if 50.0 mLs of HCl of unknown concentration is titrated to neutrality with 90.0 mL of .650 M NaOH. calculate the molarity of the HCl

    asked by susan
  140. physics

    A shopper in a supermarket pushes a loaded 31 kg cart with a horizontal force of 12 N. The acceleration of gravity is 9.81 m/s2 . a) Disregarding friction, how far will the cart move in 3.6 s, starting from rest? Answer in units of m

    asked by Jessica
  141. FINANCE

    Would the savvy use of financial logic involved in holding inventories of both stocks and bonds even if they change over time be of benefit to you and your investment portfolio?

    asked by BILLY
  142. CHEMISTRY

    (Re-post) Write the equilibrium constant expression, K, for each of the following reactions. Where appropriate, designate the K as Ksp. 2H2(g) + O2(g)2H2O(g) 2Hg(l) + Cl2(g) Hg2Cl2(s)

    asked by Kevin
  143. geometry

    what shape is NOT equilateral? A)rhombus B)rectangle C)square D)regular polygon what shape is NOT equiangular? A)rhombus B)rectangle C)square D)regular polygon

    asked by alisa
  144. physics

    What force must be applied to push a carton weighing 220 N up a 20° incline, if the coefficient of kinetic friction is 0.39? Assume the force is applied parallel to the incline and the velocity is constant

    asked by Sam
  145. chemistry

    Given the following reaction: HCl(g) + SrO(s) → SrCl2(s) + H2O Calculate the mass of HCl in grams that would react with 7.70 kg SrO

    asked by riali
  146. Algebra

    The area of the smallest (shaded) square measures 1 square unit. What is the area of the largest square? (there are 7 squares) Please help me!!!

    asked by Audrey
  147. Physics

    What is the angular momentum (in kg*m*m/s) of a 880 g symmetrical rotating bar which is 2.70 m long and spinning at 185 rpm about the center of the bar?

    asked by Helpppp
  148. SCIENCE PLZZ HELP

    Which 6 are energy from sunlight?? nuclear energy,geothermal energy,tidal energy,fusion energy,wind,hydroelectric energy,solar energy,biomass,fossil fuels,ocean thermal,energy conversion

    asked by Jason
  149. statistics

    A student took a 25 question true and false test answering the question randomly without reading. If a score of 18 is correct is the minimum passing graade, how likely is it that the random guesser will pass the test? This is binomial although there is a

    asked by brian
  150. chemistry

    Looking for Ksp ------- Compound: SrCO3 [Cation] : 2.4 x 10^-5 [Anion] : 2.4 x 10^-5 Ksp ?? Assume all concentrations are equilibrium constant in M, (mol/L)

    asked by Sarah
  151. chemistry

    calculate 5.7 grams PbCl2= ions Cl-1

    asked by nina
  152. physics

    How many calories of heat are required to convert 230 grams of ice at -10.0C to a gas with a temperature of 1500C?

    asked by michelle
  153. Social Studies

    Here is the question .. How did the Enlightenment contribute to the Industrial Revolution? A) People used technology to create greater prosperity for all. B) Reasoning was used to solve human problems. C) Electricity used in the production of material

    asked by Brooke
  154. Math

    You work at a grocery store. You hourly rate is greater after 6:00p.m. than it is during the day. One week you work 20 daytime hours and 20 evening hours and earn $280. Another week you work 30 daytime hours and 12 evening hours and earn a total of $276.

    asked by Lynn
  155. geometry

    Is it possible to construct a triangle with sides 4,5,9? If not, explain why.

    asked by alisa
  156. Calculus

    You are the owner of a delivery company with one truck. The trucks fuel economy is 1200/x miles per gallon when driving at x miles per hour (where 80 >= x

    asked by Ass10
  157. geometry

    The sides of an acute triangle are x, 35, and 37, where x is the shortest side. Find the range of possible values for x and express it as an inequality

    asked by alisa
  158. Chemistry

    Help arrange these elements in decreasing order of metallic property I, Mg, Al, Rb, Ca

    asked by Anonymous
  159. Calculus

    S=6x^2 is the surface area of a cube. Find the exact change in surface area when x is increased from 6 cm to 6.1 cm . Please Help. It makes no sense.

    asked by MiKe
  160. physics

    a hockey player skating at 19 m/s comes to a complete stop in 2.3 m. what is the acceleration of the hockey player?

    asked by Anonymous
  161. physics

    A 10.0 kg block is released from point A in the figure below. The track is frictionless except for the portion between points B and C, which has a length of 6.00 m. The block travels down the track, hits a spring of force constant 2300 N/m, and compresses

    asked by carlton
  162. Physics

    If you push the outer edge of a 1.05-m-wide door with a 23.0-N tangential force, what torque results? What is the torque if you apply the same magnitude of force, in the same place, but at a 45 degree angle?

    asked by Jordyn
  163. English

    What are the differences between the characters Johnny and dally, in the story The Outsiders by S.E. Hinton?

    asked by Melissa
  164. SCience(fossils)

    Structures in different animals that have similar functions but are different in evolutionary origin and pattern if development are said to be______________ IS IT HOMOLOGOUS STRUCTURE

    asked by Adam
  165. Math

    Last year,your class held a fundraiser and donated 850 dollars to a local charity.This year,your class's donation increased by 24%.How much did your class donate this year?

    asked by Sarah
  166. chemistry

    when burned, methane gives off heat at a rate of 342 J/g. How many kilojoules of heat will be given off when 4.50 kg burns?

    asked by Doug
  167. Physics :(

    What is the angular momentum (in kg*m*m/s) of a 880 g symmetrical rotating bar which is 2.70 m long and spinning at 185 rpm about the center of the bar?

    asked by Me
  168. Chemistry

    how would you distinguish two white solids AgCl and Hg2Cl2? How would you distinguish between two solutions Cu(NO3)2 and Ni(NO3)2?

    asked by Dant'e
  169. English

    Here is another exercise I include on the use of the infinitive/gerund. Complete the following sentences using gerund or infinitive (with or without to) forms of the verbs in brackets. 1. She swore (tell) __________ the truth. 2. She mentioned (move)

    asked by Henry2
  170. calculus

    What is the derivative of (12,000) / 1+39e^(-1.2t)

    asked by connie
  171. Math

    Heidi says 381= 2 hundreds, 7 tens, 11 ones. Do you agree? Explain.

    asked by sandra
  172. Math

    What are the x-intercept of the graph of 35x^2-20=60x

    asked by Lilly
  173. Physic Help please

    an object of mass 1.5 kg on a spring of force constant 600N/m loses 3% of its energy in each cycle.THE SYSTEM IS DRIVEn by a sinosuidal force with maximim value of F0=0.5N.(a) What is Q for this system?.(b) What is the resonance (angluar)frequency? (c) If

    asked by jjena
  174. Introduction to Psychology

    Based on the theory of multiple intelligences by Gardner, most people exhibit: a. intelligences that function in isolation. b. a single intelligence. c. one dominate intelligence. d. all eight intelligences in different degrees. I think it is b or d.

    asked by Anonymous
  175. venn

    how to draw a venn diagram for: A is a subset of B; C is a subset of B; A and C have no elements in common

    asked by Dell
  176. Algebra

    I have two questions-- 1.What is the population of a town after 6 years if it is increasing annually by 3.5%. The population is at 6,000 people right now. I did6000x(1+0.035)^6 = 7375.53 or 7376 people 2. The value of car is 28,000 dollars. If car

    asked by Trisha
  177. Math

    Raising Maine magazine's August 5,2009, Home GREEN Home" article about going green discusses ways to improve a home's energy efficiency while keeping conservation in mind. From an efficient floor plan, to a house plan maximizing sunlight, triple-pane glass

    asked by Anonymous
  178. english

    Are the following sentences fragments, run-on or complete sentences? 1.You better believe what I say to be true. 2.Listen carefully to what the teacher has to say. 3. I have always wanted to live in England, but I am afraid I will only get to visit at this

    asked by Matt
  179. Physics please help

    How far from the center of the Earth (in km) is the center of mass of the Earth + satellite system if the satellite has a mass of 6560 kg and is in orbit 46200 km above the surface of the Earth. The mass of the Earth is 5.98 * 10^24 kg and the radius of

    asked by Me
  180. math

    Suppose you borrow $12,000, which you must pay back in 30 equal monthly payments, each of which includes a .8% interest charge on the unpaid balance. a) How much will you need to pay each month? b) How much money did the bank make on this deal?

    asked by Clara
  181. chemistry-Buffer Q

    You have a solution of .5 L of 1.74g of NH3 and 4.15g of (NH4)2SO4. How many ml of 14M HCl is required for a pH of 9.00? I don't know how to go finish this one. I thought about figuring the concentrations of each (NH3, NH4), making an ice table and solving

    asked by matt
  182. statistics

    If there are 200 students in a sample, and the mean = 45 and the standard deviation = 4. How many of these students will have a score under 41?

    asked by Julie
  183. chemistry

    if 50.0 mLs of HCl of unknown concentration is titrated to neutrality with 90.0 mL of .650 M NaOH. calculate the molarity of the HCl

    asked by susan
  184. physics

    A shopper in a supermarket pushes a loaded 31 kg cart with a horizontal force of 12 N. The acceleration of gravity is 9.81 m/s2 . a) Disregarding friction, how far will the cart move in 3.6 s, starting from rest? Answer in units of m

    asked by Jessica
  185. English

    Thank you very much. Could you please check these sentences, too? 1) Explain to a friend of yours who has never flown what he/she should do before boarding a plane? 2) Talk about the place where you live using the following grid: . – What is your town

    asked by Henry2
  186. ece 201

    ECE 201 Intro to Early Childhood Behavior Management ashford university does anyone have the course schedule

    asked by samantha
  187. Calculus

    V=4/3 pi r ^3 is the formula for the volume of a sphere. Find dV for a sphere if the radius of 10" is increased by .1" Please help. I have no idea how to do this problem!

    asked by Michael
  188. chemistry

    A sample of H2 with a volume of 35.0 L at STP is reacted with excess O2 to produce H2O. How many grams of H2O are produced? 2 H2 (g) + O2 (g) --> 2 H2O (g)

    asked by Anonymous
  189. math- quick help!

    The area of the smallest (shaded) square measures 1 square unit. What is the area of the largest square? (there are 7 squares) Please, please, please help me!!!

    asked by Audrey
  190. trig

    an isosceles triangle has a perimeter of 60in. the congruent sides measure (2x+9)cm. the length of the third side is 3xcm. what is the value of X?

    asked by Joey
  191. Math Finance please help

    Five years ago, you bought a house for $151,000. You had a down payment of $30,000, which meant you took out a loan for $121,000. Your interest rate was $5.75% fixed. You would like to pay more on your loan. You check your bank statement and find the

    asked by Taccara
  192. Calculus

    Find the centroid of the area bounded by the curves: sqrt(x)+sqrt(y)=sqrt(a) x=0 y=0

    asked by Shayna
  193. History Question

    Why did small pox have such an impact on the New World?

    asked by JaShir
  194. geometry

    How would you write that line segment PK has equal length with line segment OQ?

    asked by KC
  195. History

    Please help. What was one of the powerful movements that transformed European society during the early modern era?

    asked by John
  196. math

    A triangle has sides that are 6 inches, 8 inches, and 10 inches long. What kind of triangle is it?

    asked by khrys
  197. algebra

    solve the inequality. Express the solution using interval notation and graph the solution set on the real number line x-4/x^2-4 greater or equal to O

    asked by lan
  198. Algebra

    Help please-I'm totally lost- How would I simplify (2x^5 y^4 z^3/x^-1 y^5 z^5)^-1 Thank you for any help you can give me-I'm so stuck for my homeowrk tonight. I know I can bring up the negatives to top and negative to bottom to make them positive but

    asked by Mattie
  199. algebra pls help

    A numbmer is divided by 2, then 6 is submtacted from the result. what operations are needed to return to the original number? I am going to say: x/2 -6 the operations needed are multiplication and addition to get right answer?

    asked by marko
  200. trig

    If sin(t) = -2/48 and cos(t) < 0 what is the value of cos(t) to the nearest thousandth? If sin(t) = -14/34 and cos(t) < 0, what is the value of tan(t) to the nearest thousandth? If tan(t) = -15/19 and sin(t) < 0, what is sin(t) to the nearest thousandth?

    asked by Jared Smith
  201. statistics

    the property restoration company is considering switching to new degumidifiers. Their market research, considering the cost of the4 new machines and their efficiency, tells them that the switch would give them a 96% chance of making a $20,000 profit, a 1%

    asked by boopathy
  202. calculus

    A rational function f(x) contains quadratic functions in both the numerator and denominator. Also the function f(x) has a vertical asymptote at x=5, a single x intercept of (2,0) and f is removeably discontinuous at x=1 because the lim x-> 1 is -1/9. Find

    asked by Gretchen
  203. algebra

    Using the following pattern determine the number in the 4th place: 9, 12, 18, .....

    asked by Anonymous
  204. Physics

    Two nearby nodes of a standing wave are separated by 4.5 m. If the frequency of the wave is 184 Hz, what is the speed of the wave?

    asked by Anon
  205. Geometry

    A rectangular city block measures 105 by 88 meters.The city council wants to divide the block into two triangles of equal area. What is the length of the hypotenuse of each triangular area?( I already found the area of the whole rectangle and the area of

    asked by Anonymous
  206. Econ - help please

    demand for sulfur dioxide by coal-fired electricity electricity producers is: P= 1,000 - 16Q where Q is quantity of sulfur dioxide measured in thousands of tons, and P is price per ton of sulfur dioxide. a)With no policies or restrictions on sulfur

    asked by Sushmitha
  207. Physics

    Describe 4 everyday situations where mechanical energy is approximately conserved because work done by the non-conservative forces is ignorable. Please mention which non-conservative force is doing negligible work in each case you cite. Thank you!

    asked by Jasmin
  208. math

    Holly ordered 2 pounds and 9 ounces of roast beef and 3 pounds and 9 ounces of ham. How much meat did Holly order?

    asked by Sanaya
  209. Econ more help please

    See question below at **** 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

    asked by Anil
  210. English

    I forgot to include this sentence. Thank you. 1. Complete the second sentence so that it has the same meaning as the first.

    asked by Henry2
  211. ECON

    demand for sulfur dioxide by coal-fired electricity electricity producers is: P= 1,000 - 16Q where Q is quantity of sulfur dioxide measured in thousands of tons, and P is price per ton of sulfur dioxide. a)With no policies or restrictions on sulfur

    asked by Sushmitha
  212. geometry

    If FD=4x-27, and SG is congruent to FD and SG=2x-3, Then whais the length of SG?

    asked by KC
  213. Calculus

    Express the inverse of (f o g) in terms of f^-1 and g^-1

    asked by Shayna
  214. English

    I urgently need you to revise the following sentences I have to include in an email. 1) Thank you for answering my last email and letting me know you are going to find another theme for our Comenius project with your French partner. 2) As I'm holding a

    asked by Henry2
  215. Math

    The domain of a function, f(x), is all numbers between -1 and 6, inclusive. The range of this function is all numbers between 0 and 12, inclusive. a) What is the domain of .5f(3x)? b) What is the range of .5f(3x)?

    asked by Clara
  216. math

    For each of the following, draw a Venn diagram. (a) A º B, C º B, A ¿ C = ∅ (b) A » C, B ¿ C = ∅.

    asked by Dell
  217. venn

    how to draw a venn diagram for: C is a subset of A; B and C have no elements in common

    asked by Dell
  218. Chemistry

    Carbon tetrachloride CCl4 contains carbon (EN = 2.5) and chloride (EN = 3.0). Because of this, CCl4 is:

    asked by Lance
  219. chemistry

    For the reaction: A + 3B = 4C Which of the following provides the direct link between the amount of reactant A and the amount of product C? -coefficients in the equation -molar mass of C -the reactant B or -molar mass of A?

    asked by Lisa
  220. geography

    1. What is the name of the bay that is connected to the Atlantic Ocean by the Hudson Strait? The Hudson Bay 2.What is the body of water that separates Iran from Saudi Arabia? The Persian Gulf 3. Which of the following cities is farthest north: Nebraska,

    asked by Reed
  221. english

    rite a 1,400- to 1,750-word paper in which you do the following: oEvaluate the literary elements and structural devices in the selected poems and literature. oDescribe images of diverse cultureethnicity, race, class, gender, and ageand stereotyping that

    asked by joann
  222. Math-Help please?

    Michael owns 300 shares of a certain stock. Suppose the price of the stock drops by $4 per share. Write a multiplication equation to find the change in Michael's investment. I put 300x(300x[-4]) is that right?

    asked by Anna
  223. english

    What is the def. Of the word thing-a-ling how how to put it into a sentence. Can not find in dictionary.

    asked by Nancy
  224. Math

    What is the value of A in the multiplication sentence if x=45? (x+a)(x-A)=2009

    asked by Terry
  225. Algebra

    Divide -4x^3 + 24x^2 – 24x + 4 by x^2 – 5x + 1

    asked by Linda
  226. math

    cos theta = 5/13 with -pi/2 < theta

    asked by Yul
  227. Physics

    water flows smoothly from the left-hand pipe section (radius 2.00R), through the middle section (radius R), and into the right-hand section (radius 3.00R). The speed of the water in the middle section is 0.460 m/s. What is the net work done on 0.430 m3 of

    asked by Alex
  228. science

    An earthquake occurs far from an observing station and produces P, S, and surface waves. Do all the wave arrive at the same time? If not, which arrives first and which last?

    asked by Shirley
  229. English

    Could you please check these sentences, too? 1) To begin with, I’ll have potato soup. I couldn’t help laughing. 2) I’m worried about Brian’s arriving so late. She admitted eating all the cakes. 3)I couldn’t do anything but put off (postpone) the

    asked by Henry2
  230. English

    I am trying to understand my essay question, but need help putting it in simpler terms. Question: How does Selvadurai’s text encourage a critique of normative ideas about gender and/or sexuality?

    asked by Selena
  231. English

    Suddenly, a rainbow appeared in the sky. Is sky an adverb because it tells where the rainbow appeared? also, The hard working plumber was early. Was early is the verb phrase. I have trouble labeling it linking or action verb because it seems like both to

    asked by Kelley
  232. geometry

    If all four sides of a quadrilateral measure the same length, and one coner angle measures 90 degree, what shape can the quadrilateral be A)rhombus B)rectangle C)square D)parallelogram E)all of these

    asked by alisa
  233. Informal Logic

    Write two arguments in English,one in the form of modus poens and one in the form of modus tollens. Then write the arguments in symbols using sentence letters and truth-functional connectives. Whay advantage does being able to symbolize our arguments

    asked by Cindy
  234. Math

    A store's sign is the shape of an equilateral triangle. One side measures 21 inches. What is the length of each of the other two sides?

    asked by Sarah
  235. Chemistry

    The Aufbau Principle is concerned with what?

    asked by Betty
  236. report

    I'm doing a Point Of Interest report on: *Grand Canyon * NASA NASA is in Houston TX I have NO clue about any one of these!! What do I do??

    asked by lizzy
  237. Chemistry

    What is considered a secondary alcohol ?

    asked by Amy
  238. History

    How did the baby boom, postwar prosperity, advertising, mass culture, and mass consumerism lead to a generational consciousness and, in some cases, help to "radicalize" many young Americans? How did the cultural radicalism of the 1960s affect attitudes

    asked by BILLY
  239. English

    MY ancestors are Irish. Is Irish a predicate noun

    asked by Beth
  240. algebra

    Suppose that Jane borrows 7800 dollars from a bank on April 24 at an annual rate of 7 percent simple interest. How much does she owe on August 14 of the same year?

    asked by Rachel
  241. Chemm

    Find the OH- concentration of a solution that is 0.198 M NaOH and 0.262M NH4Cl. I did the ice table,using OH- from NaOH for an initial, and NH4 from the NH4Cl molecule, and ended with .20M. But that's not right apparently...

    asked by Rick
  242. Math

    Solve the equation by factoring, by finding square roots, or by using the quadratic formula. 3(x+4)^2= -27

    asked by Lilly
  243. geography (Ms. Sue)

    I did copy the question wrong. It was states and not cities like I had. Thank You once again!

    asked by Reed
  244. Chemistry

    Give two bronsted acid-base that are not Arrhenius bases.

    asked by Dewa
  245. calculus

    Estimate the area of the region under the curve y = ln(x) for 1 ≤ x ≤ 5. Use the left-hand rule with n = 50. (Round your answer to four decimal places.)

    asked by Anonymous
  246. Computer Science (MATLAB)

    Given an arbitrary one dimensional vector v imputed by the user for example v='Helllllloooooo' or v='Helo' I was able to append empty characters onto any one dimensional vector that the user can enter so that way the total length of the vector is a

    asked by Jhon
  247. Geometry

    boat dock is 9 ft above water level if a 41 ft rope is attached to the dock on one side and to the boat on the other side, what is the horizontal distance from the dock to the boat?

    asked by Rosalind
  248. 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
  249. SCIENCE

    What are some energies from sunlight??

    asked by Jason
  250. algebra

    I do not know how to do this problem, please help. (35b^3 + 25b^2 + 30b + 44)divided by (5b + 5)

    asked by jane
  251. english

    Leadership Traits of Effective Managers. I NEED SOME GOOD ARTICLES FOR THIS TOPIC.

    asked by JJ
  252. Physics

    A 1.7 kg otter starts from rest at the top of a muddy incline 89.2 cm long and slides down to the bottom in 0.60 s. What net external force acts on the otter along the incline? Answer in units of N

    asked by Ryan
  253. ASAP ENGLISH PAPER

    i am writing a paper for English the question is what ethical problems may rise in research on humans?List and describe the three principles researchers are supposed to be guided by in resolving dilemmas. I AM STUCK PLEASE HELP ME!!!!!!

    asked by maria
  254. algebra 1

    write an equation for the line that is perpendicular to the given line and that passes through the given point. (6,4);y=3x-2

    asked by rachel
  255. Socials

    for the question like 2 days ago. About world war I and World war 2 announcement. I think I may be wrong because people were happy to go to ww1 they thought it be fun and easy money but ww2 they had to go no choice. they need to step out of depression only

    asked by Mohammad
  256. physic

    an object of mass 1.5 kg on a spring of force constant 600N/m loses 3% of its energy in each cycle.THE SYSTEM IS DRIVEn by a sinosuidal force with maximim value of F0=0.5N.(a) What is Q for this system?.(b) What is the resonance (angluar)frequency? (c) If

    asked by jjena
  257. chemistry

    A sample of gas at 80°C is cooled by 30 degrees until its final volume is 1.75 L. If the pressure remains constant, what was the initial volume of the gas.

    asked by mary
  258. trig

    cosθ =5/13 with -π/2 < θ

    asked by Yul
  259. Econ - more help please

    demand for sulfur dioxide by coal-fired electricity electricity producers is: Firm A's demand: P= 1,000 - 80 Q Firm b's demand: P= 1,000 - 20 Q where Q is quantity of sulfur dioxide measured in thousands of tons, and P is price per ton of sulfur dioxide.

    asked by Sushmitha
  260. soc. stud.

    how could you use the Sons of Liberty today to have your voice heard?

    asked by Bre
  261. english

    Hi, I'm writing about this movie and we have to pick from specific categories: writing, cinematography, editing and acting. I'm writing about the sound of the movie because it's a musical. Of which of the 4 categories would sound fall under?

    asked by Jon
  262. algebra

    Solve using the substitution method. Show your work. If the system has no solution or an infinite number of solutions, state this. 3x – 15y = -12 3x + 24y = -12

    asked by Linda
  263. Econ - urgent 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
  264. astronomy

    At an average opposition, the Earth and Mars are separated by 0.52 AU. Suppose an astronomer observes Mars at opposition and that seeing blurs the images to a resolution of 1.0 seconds of arc. What is the smallest surface feature the astronomer would be

    asked by Matt
  265. Chemistry

    Electrons in the outermost principal shell of an atom that are involved in chemical bonding are referred to as:

    asked by Ed
  266. Chemistry

    Boiling occurs when?

    asked by Lance
  267. accounting

    After filling out a perpetual inventory card using fifo i need to find out how to prepare a journal entry to record a sale of 60 units sold assuming i got 5.00 each for them? Confused

    asked by JW
  268. English

    Okay got that one.. What about The cab driver was driving extremely fast down the street. The very phrase is was driving. Was is a linking verb and driving an action. Is it a linking verb or an action verb? Directions say to underline the verb phrase and

    asked by Kelley
  269. geomerty

    the angles are supplemantary angles.determines the measure of

    asked by miss c
  270. Chemistry

    What happens to the current flow with time in an electrolytic cell ? explain. thank for helping~

    asked by limit
  271. Chemistry

    When non-polar materials suddenly become polarized the most likely reason is due to:

    asked by Bob
  272. 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
  273. Tragedy of Julius Caesar

    is cassius is honestly opposed to tyranny

    asked by corey
  274. Science

    6 energies of sunlight

    asked by XD
  275. History

    How does the industrialization (factories) of cities change the face of labor? Who was involved?

    asked by Chantel
  276. Science

    What is 1 energy from the Earth?

    asked by :D
  277. physics

    A car that starts out 250 meters east of a gas station at time zero and passes it in 10 seconds. Draw your graph showing the car traveling at least 250 meters past the gas station to the West.

    asked by Anonymous
  278. Math

    On December 28, 2007, you could buy a 10-year U.S. Treasury note for $10000 that pays 6.29% simple interest every year through December 28, 2017. How much total interest would it earn by then?

    asked by Mel
  279. Math

    Make an equation that has solutions x= 9 and x = -2/3

    asked by Allison
  280. Chem

    Consider the following reaction: 6A + 2B 5C + 4D Determine the following rates at a time when the rate of consumption of B is 2.5E-05 M/s. a) rate of consumption of A M/s b) rate of formation of C M/s c) rate of formation of D M/s d) rate of reaction M/s

    asked by Rachel
  281. math

    Prove that R contains a zero divisor if and only if R' does.

    asked by Mary
  282. Math

    Can you help me check if I'm doing this correctly or not? I'm solving this quadratic equation by us ing the quadratic equation. -9v^2+35v-30=1-v -9v^2+36v-29=0 -36 ± √36^2-4(-9)(29) divided by 2(-9) -35 ± √1296 + 1044 divided by -18 -36 ± √2340

    asked by Lilly
  283. 2nd Semester Classes

    I just need someone's personal opinion. I have started looking for a job when I get out of college and graduate with a zoology degree. One thing I have always wanted to do is train marine mammals and it turns out that I am eligable for a position at

    asked by Harley
  284. math

    The Ministry of Finance published the FY2009 Tax Reform ( Main Points) on December 19, 2008. Included in the Reform is the introduction of a 2- year measure allowing immediate depreciation for investment in energy- saving facilities and appliances. If this

    asked by Anonymous
  285. Managerial Economics

    When developing short-run cost curves, it is assumed that all firms in perfect competition have the same cost curves and they all make identical short-run profits or losses. Contrast this to the real world and why individual firms might experience

    asked by Cindy
  286. ms. sue thanks

    ms. sue thanks for help u give to me with my questions. but still i unsure of that policy one, how it changed i just guess and wrote that canada more involved in war but i don't real understand it.

    asked by Mohammad
  287. polynomial function

    p(w)=4(w)^3-3w-4; find p(-4) and p(1/4)

    asked by bea
  288. english ASAP

    i am writing a paper and i want to write something that was said in the movie how do i give credit ?

    asked by katy
  289. MATH

    HOW DO I FIND THE PRODUCT OF 11/15 AND 12/7

    asked by MIKE
  290. History of America

    Do you see ways in which these two ideologies are (or could be) related? Explain. The words are anarchism and pacifism. Any kind of help would be great!

    asked by anonymous
  291. Chemistry

    The primary reason for forming multiple bonds when manipulating electron dot structures is:

    asked by Help
  292. English

    Since the sentence The cab driver was driving extremely fast down the street has both an action verb and a linking verb, what do I say it is action or linking?

    asked by Kelley
  293. Chem-BufferQ

    You have a solution of .5 L of 1.74g of NH3 and 4.15g of (NH4)2SO4. How many ml of 14M HCl is required for a pH of 9.00? I don't know how to go finish this one. I thought about figuring the concentrations of each (NH3, NH4), making an ice table and solving

    asked by Matt
  294. english

    how do i write a thesis statement ? Like teachers always say "What's the Big Idea" or "Universal Idea" and I always think I have it but I never get it right. & I'm embarrassed to say that I am a Senior in High School asking this question -__- I have to

    asked by LayDeee_B
  295. english

    Please could you help me with 6 words with silent letters ...please

    asked by anna
  296. Math- Please Help!

    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
  297. History

    Please Help. How did the Islamic Slave Trade change the existing system?

    asked by John
  298. Algebra

    Help please-I'm totally lost- How would I simplify (2x^5 y^4 z^3/x^-1 y^5 z^5)^-1 Thank you for any help you can give me-I'm so stuck for my homeworkk tonight. I know I can bring up the negatives to top and negative to bottom to make them positive but

    asked by Mattie
  299. Art

    What are the essential pillars of Neo-Classicism? Why is emotion important to the Romantic painters? Why did they use bright vibrant colors?

    asked by Sarah
  300. chemistry

    what must be done with the radioactive waste materials that result from splitting atoms and how is this a problem?

    asked by Sara
  301. books

    Book: The Trouble with Lemons At the end of Chapter 16, a character says "it's harder to hate a guy when you see that he's got problems like everbody else." Who says this? Explain what is going on in the novel before, during, and after this is said.

    asked by Alejandro
  302. Math - Calculus

    find the derivative of: g(x) = log[(x^3+1)^3(x^3-1)^3)]

    asked by TOmmy
  303. Introduction to Psychology

    The experimental rats were being raised in separate environments. One group lived in the traditional cage in a quiet, but well lighted room. They were supplied with plenty of food and water. The second group inhabited "Rat Disney Land." There were colorful

    asked by Anonymous
  304. Opinion, I need many people to respond

    There has been a lot of controversy over wheather SeaWorld and other marine parks should keep marine mammals and if they should be allowed back in the water with the orcas after the Dawn's death last year. What do you think? I am currently training to

    asked by Harley
  305. English

    I would like to learn more about my ancestors. Is the word " learn" the object of the prep. to and is the word "more" an adjective.

    asked by Beth
  306. College Physics

    A steel piano string for the note middle C is about 0.68 m long and is under a tension of 400 N. If the fundamental frequency is 226 Hz, what is the string’s diameter? I have tried it several times and continue to get an incorrect answer.

    asked by Anon14
  307. accounting

    What is the future value on 12/31/2014 of a deposit of $10,000 made of 12/31/2010 assuming interest of 16% compound quarterly.

    asked by t
  308. School

    What happens if dams are too big

    asked by Alli
  309. Healthcare

    Why is survey research considered a weak research technique? How would you counteract that perception when asked?

    asked by pj
  310. Math

    Write the slope-intercept from of the equation of the line through the given points through: (-5,4) and (0,4)

    asked by Lynn
  311. pre algebra

    What is the answer to (-6t^4)(4t^2m^7

    asked by kayla
  312. psychology

    . Expectation plays an important role in:

    asked by t
  313. english

    what does this mean? how can i summarize it ?? "we acquire language not just because we are taught it, but because we are born with the principles of language. They're in our genes. We have language because of nature, not just nurture"

    asked by melissa
  314. Angermanagement

    state how you you hurt your loved one

    asked by Udo
  315. Astronomy

    Can someone explain to me this asteroid article??? ?i am so confused! (google: asterioid 21 lutetia:low mass, high density-first link)

    asked by Rebecca
  316. english ASAP

    how to give credit in an essay?

    asked by katy
  317. math

    the difference between 2 numbers is 40? they are in the ratio 9:7. What are the numbers ?

    asked by renoir john
  318. chem

    how many molecules will be in 275 grams of c2h6

    asked by mandy
  319. languagge

    whats the natural resources of Japan ?

    asked by saira
  320. Chemistry

    A sodium cation is what?

    asked by Lisa
  321. SCIENCE

    What are 6 energies from the sunlight?

    asked by Jason
  322. Chemistry

    Compounds that reduce the surface tension of water are considered to be?

    asked by Betty
  323. Chemistry

    Which electron configuration best represents bromine?

    asked by Anonymous
  324. Chemistry

    Is this true or false Both sublimation and melting are considered endothermic processes.

    asked by Amy
  325. algebra short response

    A nubmer is divided by 2, then 6 is submtacted from the result. what operations are needed to return to the original number? I am going to say: x/2 -6 the operations needed are multiplication and addition to get right answer?

    asked by marko
  326. Angermanagement

    1. State how you hurt your loved one. What did you do? List all instances of verbal, emotional, or physical abuse. 2. What effects has your behavior had on that person or persons, especially on his/her capacity to sustain the attachment: interest,

    asked by Udo
  327. Angermanagement

    1. State how you hurt your loved one. What did you do? List all instances of verbal, emotional, or physical abuse. You could have hurt a loved one in many different ways: - not being honest - loss of trust - cheating on your partner - abusive tendencies;

    asked by Udo
  328. English

    2 questions what is the word down in this sentence? 1. Samantha rode her bike the hill. noun or adjective or adverb or verb 2. What is the word sky in this sentence? Suddenly, a rainbow appeared in the sky.

    asked by brandon
  329. algebra

    find an equation for the line that passes through the point (6,-3)and has slope -1/2

    asked by lan
  330. English

    Could you please check this exercise in which sentences need to be changed into the passive using the personal construction? 1) They say he lived in New York. He is said to live in NY. 2) Journalists report that the famous couple is flying to Paris next

    asked by Henry2
  331. algebra

    evaluate the following please |-25| I put 25 as answer,, is this right the lines are staight lines Thanks for your help.

    asked by ann
  332. Social Studies

    Im working on a review booklet for Social Studies and theres a couple questions Im having problems with, my test is tomorrow so I don't have time to ask my teacher , hope you can help ! :) First Question: "The scramble for Africa" began in the late 1800s

    asked by Brooke
  333. literary

    The snake hissed loudly and attacked the rat. what literary term does this use?

    asked by Lauren
  334. Science

    what is a dilute solution

    asked by Chris
  335. English

    Could you please check this other exercise on reporting verbs? Thank you. 1) “Would you like to go for a motorbike ride uphill?”, he said to me. He invited me to go ..... 2) “I’m sorry, I broke your glasses.” He admitted breaking the vase./He

    asked by Henry2
  336. Geometry

    Please solve this problem. d=2*x/8

    asked by Ally
  337. English

    Thank you. Where should I include commas? Can you check if I set them correctly, please? Explain to a friend of yours, who has never flown, what he/she should do before boarding a plane. 2) Talk about the place where you live using the following grid: .

    asked by Henry2
  338. soc. stud.

    how could you use effigies today to have your voice heard?

    asked by Bre
  339. psychology

    Sexual arousal in human beings is different from that of animals. It is clear that human sexual arousal can occur

    asked by t
  340. Laboratory Techniques

    Calculate the number of moles K2CO3 of and MgCl2 in the 15 ml aliquots of reagent solution

    asked by Chemistry
  341. History

    Please Help. What was one of the powerful movements that transformed European society during the early modern era? Between the 16th and 17th centuries.

    asked by John
  342. Math

    Which lines are parallel? y=-3x+1 -3x+y=5 2y=-6x+12

    asked by Greg
  343. Astronomy

    The distance between the Earth and Mars when the two panets are at opposition varies greatly because of the large eccentricity of Mar's orbit. The perihelion distance of a planet is given by rmin=a(1-e)and the aphelion distance by rmax=a(1+e) where a is

    asked by Sara
  344. Chemistry

    Condensation is considered an exothermic process is this true?

    asked by Betty
  345. speech

    Describe a scenario in which one would expect an opposed audience. Explain context

    asked by help
  346. informal logic

    Write two arguments in English, one in the form of modus poens and one in the form of modus tollens. Then write the arguements in symbols usimg sentence letters and truth-functional connectives. What advantages does being able to symbolize our arguments

    asked by rohwer42
  347. math

    integrate (using substitution). (6x^5)(e^(x^6))dx

    asked by Jordan
  348. Science

    I need an idea for something cool to do with a polymer pellet?

    asked by Anonymous
  349. Social Studies 7R (answer quick)

    I got my Native Americans test back today during ss and I got a 77 (4 qs. wrong there was 10 mulitple and 13 reponse but my teacher think it will take for ever for us to do the test so we had to do all the multiple qs. and for the reponse qs. do 9 qs. and

    asked by Laruen
  350. physics

    If the girl from #1 runs off of the jungle gym into her dad's arms, which are 1m above the ground, how fast is she moving just before she's caught by her dad?

    asked by Anonymous
  351. algebra

    Using the following pattern determine the number in the 4th place: 9, 12, 18, .....

    asked by Anonymous
  352. science

    Distinguish between the foliation of a metamorphic rock and the stratification of a sedimentary rock.

    asked by Shirley
  353. algebra

    1.9s+6=3.1-s

    asked by jim
  354. english

    come up with a thesis statement and have two resources or references to support it

    asked by khalilah
  355. math

    5.3+4=3.24-2.7

    asked by megan
  356. games

    unscramble these letters uckpbsa

    asked by g crowell
  357. math

    how do u find the expanded algorithm

    asked by Marco
  358. computer science

    i need help about blue j from Java.i have project about property. i have almost finish but the end i have error . if there s any one could send me post answer. many thanks

    asked by zardasht
  359. writing

    please show me a good writing paragraph

    asked by Anonymous
  360. ALGEBRA-Help please

    (2g-3)(2g^2 + g - 4) IS IT 2g^3 - 4g^2 + 12

    asked by SYNC
  361. math

    5.3+4=3.24-2.7

    asked by megan
  362. simplest form

    6 8

    asked by Anonymous