Questions Asked on
November 16, 2009

  1. Math

    The height, h, in metres, above the ground of a rider on a Ferris wheel can be modelled by the equation: h= 10 sin ((pi/15 t) - 7.5) + 12 where t is the time, in seconds. At t=0, the rider is at the lowest point. Determine the first two times that the

    asked by -
  2. Advanced Functions

    Consider the trig equation: 4sinxcos2x + 4cosxsin2x - 1 = 0 in the Interval [0, 2 pi] Either show that there is no solution to the equation in this domain, or determine the smallest possible solution.

    asked by Anonymous
  3. chemisty

    what type of reaction occurs when potassium metal reacts with fluorine gas?

    asked by Tiffine
  4. Chemistry

    Draw the Lewis structure for SiCl2Br2.

    asked by Gina Mitcell
  5. chemistry

    if you disolve 2.00 mol KI in 1.00 L of water will you get a 2.00 M solution? explain please

    asked by lynda smith
  6. Math

    Mario replaced 72 tires on the small and large trucks in his fleet. He replaced 3 times as many tires on the large trucks as on the small. How many tires did he replaced on the small trucks?

    asked by Izzy
  7. PHYSICS!!

    An amusement park ride consists of a rotating circular platform 8.26 m in diameter from which 10 kg seats are suspended at the end of 1.14 m massless chains. When the system rotates, the chains make an angle of 16.2 degrees with the vertical. The

    asked by bubba
  8. us history

    How did Bull Market it affect investment actities of americans?

    asked by Marquice
  9. physics

    Approximately what force, FM, must the extensor muscle in the upper arm exert on the lower arm to hold a 7.9 kg shot put (Fig. 9-66)? Assume the lower arm has a mass of 2.8 kg and its CG is 11.2 cm from the pivot point.

    asked by kwame
  10. Chem Help

    If you are given a 0.27 g piece of sodium metal to react with water, how many moles of HCl would it take to neutralize the sodium hydroxide produced?

    asked by Anonymous
  11. Math

    A quarter of a circle plus and eighth of a circle is what percent of a circle

    asked by Logan
  12. Physics

    A beaker of mass mb containing oil of mass m1 and density ρ1 rests on a scale. A block of iron of mass m2 and density ρ2 is suspended from a spring scale and completely submerged in the oil. Determine the equilibrium readings of both scales. (Use rho_1

    asked by Kent
  13. Geography

    19. The spread of Hinduism, Buddhism, and Islam throughout Southeast Asia best exemplifies what geographic theme? a. movement b. location c. place d. absolute region 28. What information would be the most helpful in drawing inferences about why certain

    asked by mysterychicken
  14. physics

    A 13 cm long animal tendon was found to stretch 3.8 mm by a force of 13.8 N. The tendon was approximately round with an average diameter of 7.0 mm. Calculate the elastic modulus of this tendon.

    asked by emma
  15. physics

    A shop sign weighing 230 N is supported by a uniform 115 N beam as shown in Fig. 9-54. Find the tension in the guy wire.

    asked by charlse
  16. world geography

    what is the formal an funticnal region in washington

    asked by Trevor
  17. Physics - Work and Energy

    (a) If the KE of an arrow is quadrupled, by what factor has its speed increased? (b) If the speed is doubled, by what factor does its KE increase?

    asked by Anonymous
  18. Physics

    A basketball player is trying to make a half-court jump shot and releases the ball at the height of the basket. Assuming that the ball is launched at 51 degrees, 14.0 m from the basket what speed must the player give the ball? So far I found the Vy to be

    asked by emm
  19. Physics - Work and Energy

    Jane, looking for Tarzan, is running at top speed (3.6 m/s) and grabs a vine hanging vertically from a tall tree in the jungle. How high can she swing upward? Does the length of the rope matter?

    asked by DJ
  20. Algebra

    A grocer mixes together some cashews costing 8$ per kilogram with some nuts costing 10$ per kilogram. The grocer sold 12 kg of the mixture for 8.50$ per kilogram. How many kilograms of cashews were in the mixture? I have to find 2 equations then find the

    asked by Rebekah
  21. science

    as you push a lawnmower the horizontal force is 300 N. If you push the mower a distance of 500 m, how much work do you do?

    asked by sophie
  22. math 6th grade

    Mr.Pilgrim has a turkey farm.He has one male turkey for every 17 female turkeys.If he has 289 females,how many does he have?Can this be expressed using exponents? Each turkey has 2.3X106 feathes.How many feathers is that in standard form?

    asked by Annia
  23. Physics

    A 17 kg child descends a slide 3.5 m high and reaches the bottom with a speed of 1.5 m/s. How much thermal energy due to friction was generated in this process?

    asked by Shane
  24. Macroeconomics

    Suppose that velocity is constant. The economy's output of goods and services rises by 5% each year. What will happen to nominal GDP and the price level next year if the Fed keeps the money supply constant? (Hint--put the variables into the formula) Help!

    asked by a-tan
  25. Physics

    A 10cm times 10cm times 10cm wood block with a density of 700kg/m^{3} floats in water. What is the distance from the top of the block to the water if the water is fresh? weight= density*volume*g weight=700*(10^-3)*9.81 weight=3418.877985

    asked by ana
  26. math

    Adult tickets for a play cost $19 and child tickets cost $17. If there were 36 people at a performance and the theatre collected $646 from ticket sales, how many children attended the play?

    asked by bell
  27. sat essay

    assignment:are people's lives the result of the choices they make? In today¡¯s society, many people believe that circumstance determines their lives. They often blame their failure to the environments instead of themselves. As far as I am concerned,

    asked by Kiokazu
  28. arithmetic

    Write the numeral in base ten. 42five. I think the answer is 42 because it contains 4 tens an 2 ones. Is that right?

    asked by Anonymous
  29. science

    in the course of a short race,a car does 50,000 J of work in 7 s. What is the power of the car during a race?

    asked by sophie
  30. 9th grade

    At noon a private plane left Austin for Los Angeles, 2100 km away, flying at 500km/h. One hour later a jet left Los Angeles for Austin at 700 km/h. At what time did they pass each other?

    asked by Amber
  31. Public High School AP Physics B

    Ok I got a question I'm confused by the compression ratio bit in this problem and don't know how to do it If 3.00 m^3 of a gas initally at STP is placed under a pressure of 3.20 atm, the temperature of the gas rises to 38.0 degrees C. What is the volume? I

    asked by Corey
  32. Organic Chemistry

    What is the structure of the magnesium salt that is created as a byproduct of the Grignard reaction: bromobenzene + mg = phenylmagnesium bromide phenylmagnesium bromide + benzophenone = triphenylmethanol

    asked by Vik
  33. Geography

    14. The purpose of Japan's imperialist policy in the early 1900s was to a. spread Japanese culture and religions to other parts of the world b. strengthen Japan's economy through obtaining additional natural resources c. acquire strategic defense positions

    asked by mysterychicken
  34. History

    During the period of the Crusades, warfare between Christians and Muslims lasted nearly ? years 50 300 200 100

    asked by Ed
  35. Calc

    Find a cubic function, in the form below, that has a local maximum value of 3 at -2 and a local minimum value of 0 at 1. f (x) = ax3 + bx2 + cx + d

    asked by Jared
  36. Grammar

    What is the possessive form of democracy in the following sentence. Would democracy followers win the struggle. Is it democracies'

    asked by seth
  37. physics

    A massless string runs around two massless, frictionless pulleys. An object with mass m = 20 kg hangs from one pulley. A force F is exerted on the free end of the string to lift the object at a constant speed by a distance of 2.3 m. What is the work done

    asked by m2a
  38. physics

    A pendulum consists of an object of mass m = 1.2 kg swinging on a massless string of length l = 259 cm. The object has a speed of 2.4 m/s when it passes through its lowest point. What is the greatest angle with the vertical that the string makes during the

    asked by m2a
  39. Math

    How do you do arrays and an expanded algorithm. 23 X 17?

    asked by Thomas
  40. science

    a libraian lifts a box of books that weighs 93 N a distance of 1.5 m. How much work does he do?

    asked by sophie
  41. PreCalc

    Chase Quinn wants to expand his cut-flower business. He has 12 additional acres on which he intends to plant lilies and gladioli. He can plant at most 7 acres of gladiolus bulbs and no more than 11 acres of lilies. In addition, the number of acres planted

    asked by Tara
  42. Physics

    How many grams of water (H_2O}) have the same number of oxygen atoms as 1.0mol of oxygen gas?

    asked by ana
  43. French 101 help Part 2

    Hi. I would really appreciate it is someone could review my answers for these questions.I am horrible with accents and always lose points. Are those correct as well? Thank you in advance!!! Complétez avec la forme correcte de savoir ou connaitre 6)

    asked by Madison
  44. Chemistry

    Calculate S (measure of total entropy) for the following reaction at 25C and 1atm, and tell whether the entropy is increasing or decreasing. C3H8(g)+5O2(g)-> 3CO2(g)+4H2O(g) S of C3H8=64.5 cal/(mol*K) S of O2= 49 cal/(mol*K) S of CO2= 51.1 cal/(mol*K) S of

    asked by Christina
  45. chemistry

    a chunk of silver has a heat capacity of 42.8J/degrees celcius and a mass of 181g. calculate the specific heat of silver.

    asked by joshua
  46. Math

    Noah and Brianna went to calculate the distance between their houses which are opposite sides of a water park. They mark a point, A, 120 m along the edge of the water park from Brianna's house. the measure NBA as 75° and BAN as 70°. Determine the

    asked by Gillian
  47. chemisrty

    I have no idea how to do this activity..can someone please help!? In this activity you will investigate how chemical reactions are limited by the amount of reactants present. You will be using paper clips to represent atoms. You can describe the quantities

    asked by Ethan
  48. math

    A michigan orchard made 11,491lb of taffy apples with approximately 1lb of taffy mixture for each 76.7 pounds of apples. To the nearest tenth of a pound, how many pounds of apples and how many pounds of taffy were used

    asked by steven
  49. physics

    A rope is stretched with a tension of 248 N. The rope is of length 12.5 m with a mass of 161 g. Two pulses are formed at opposite ends of the rope, separated in time by 30.1 ms. Determine how far from the farther end of the rope the pulses will first meet?

    asked by Anonymous
  50. PERSONAL FINANCE

    a SAVER HAS A $1000 ON DEPOSIT IN AN ACCOUNT EARNING 3 PERCENT INTEREST. dURING THIS YEAR THE INFLATION RATE WAS 5 PERCENT. AFTER ONE YEAR EHAT IS THE BUYING POWER OF THE AMOUNT IN SAVINGS FOR THAT PERSON?

    asked by lALA
  51. algebra

    (I answered a couple of them but am not confident on my answers, so can you please tell me if my answers are not correct to the ones I answered and for the ones I haven not answered that is because I do not know how to do them. PLEASE HELP!!! This

    asked by LeAnn/URGENT
  52. Contract Law

    Hello, I have a question. Does Electronic Commerce Act, 2000 require companies to do business through electronic means? And it says provide statutory( which means legal) reference. I think that it doesn't require the companies to do business through

    asked by Yana
  53. physics

    The following forces act on a hockey puck (round, rubber disk) sitting on a frictionless surface: F_1 = 12 N at 15 degrees; F_2 = 28 N at 125 degrees; and F_3 = 33.3 N at 235 degrees. All the forces are in the plane of the ice. Determine the net force on

    asked by Jacob
  54. calculus

    find y' if y=sin^-5x-cos^3x

    asked by Danielle
  55. Math

    Give a verbal, visual, numerical, and graphic representation for the idea one and one-sixth.

    asked by Micheal
  56. e-business

    describe several B2B technologies and applications, as well as describe several applications or ways B2C can use technology that Grandma's Treats could utilize as part of an e-business strategy. Search the Library and provide at least two research

    asked by new things
  57. math

    there are 58 songs on Yasmin's play list. if m represents the number of rock songs, which expression represents the number of other songs? A. 58+m B. 58-m C. 58Xm D. 58/m

    asked by Sam
  58. Child care

    18. Children are more likely to lose control when they're A. bored. C. listless. B. tired. D. active. The correct answer is A

    asked by Rosa
  59. Social Studies

    True Or False Questions: The Crusades helped to increase the flow of trade in Europe The joint-stock company, in which individual men invested and profited in proportion to the number of shares purchased, was the principal instrument of England's overseas

    asked by Jim
  60. Math Analysis

    5. The bacteria population doubles every 10 hours. How long will it take to triple the initial amount? (Use log 3 / log 2 = 1.585) ==> I thought you could use the formula A(1/2)^(t/h), but I don't know... Any help is GREATLY appreciated!! :D

    asked by Emily
  61. Algebra 1: Help Please URGENT!

    A circle is inscribed in a square. The number of square units in the area and the number of units in the perimeter of the square are the same. What is the area of the circle in terms of pi? Explain your thought process. I completely don't understand this

    asked by Shayne
  62. Physics

    Water flowing through a 2.8 cm-diameter pipe can fill a 200 L bathtub in 5.8 min. Flow rate Q = volume/time = speed * cross section area Q=200/5.8=speed*.028....i get 1231.52 or Q=(200/348)=speed*.028...i get 20.52 both are wrong so what do i do?

    asked by ana
  63. physics

    a stone of mass o.5 kg is dropped from a height of 5om.what is the kinetic energy of the stone just before it strikes the ground

    asked by cathy
  64. Grammar

    Yes, and the sentence is exactly as written. I'm just supposed to chose. That is why it is confusing.

    asked by seth
  65. History

    To what extent would you describe the changes in transportation between 1815 and 1860 as a revolution?

    asked by Dezirae
  66. physics

    A pendulum has a period of 2s. What chcange in its length will double the period?

    asked by Inascent
  67. Math

    Write the negation of the following: A snowy day is cold.

    asked by Micheal
  68. French 101 help

    Hi. Would someone please review and tell me if these are correct? Thank you!!!! Remplacez le nom dans les citations avec un pronom d'objet direct ou indirect selon des cas. 1) Est-ce que vous “me” regardez? Oui, nous . . . A:Oui, nous te regardons. 2)

    asked by Madison
  69. Calculus

    Locate the absolute extrema of the function on the closed interval f(x) = 2(3-x) [-1,2]

    asked by Jenn
  70. English

    1. He picked up the stone. 2. He took up the stone. (Are both the same?) 3. Volunteer work takes up a lot of time. (What is the meaning of 'takes up'? What other words can we use instead of 'takes up'?

    asked by rfvv
  71. Chemistry

    Using G (measure of free energy) to determine wether the reaction 4Fe(s)+3O2(g)-> 2Fe2O3(s) is spontaneous at 25C, given that H=.393kcal and S=-0.13 kcal/(mol*K). Is the reaction more or less spontaneous at 1000C assuming that H and S remain constant with

    asked by Christina
  72. Physics 11

    I need help on this question 79 g of water at 95 degree Celsius were added to tap water at 22 degree Celsius, and the Temperature of the mixture after all thermal energy transfer ended at 36 degree Celsius. What was the mass of the tap water? (teacher's

    asked by Andrew
  73. Physics-Astronomy

    Hello, I have no idea how to do the following question. Any help would be appreciated: An energy of at least 13.6 electron-volts is required to ionise a hydrogen atom. What is the longest wavelength of electromagnetic wave capable of ionising hydrogen? And

    asked by Mark
  74. Hypothesis

    Suppose that the average grade for all people who take this course in statistics is 83 with a standard deviation of 3.5. If your particular class has an average of 89, can you conclude that your class is better than average at the 90 percent confidence

    asked by Terra
  75. History

    the first english man to sail around the world was?

    asked by Ed
  76. art

    What is the difference between a film and popular cinema? I cannot seem to figure out the distinction other than maybe the timing of the clips. Could someone please help me gain a better understanding of the difference?

    asked by sam
  77. chemistry

    in one experient, a student placed 50.0ml of 1.00molar Hcl at 25.5celsius in a coffee-cup calorimeter. to this was added 50.0ml of 1.00molar NaoH solution also at 25.5celsius. the mixture was stirred, and the temperature quickly increase to a maximum of

    asked by mike
  78. Social studies

    what are technology of westward expansion?

    asked by Dhuha
  79. Algebra 1

    Marcus and Allen are playing Rock/Paper/Scissors. The first one to one 10 times does not have to do the dishes. The score is now 9 to 7 in favor of Marcus. If ties are ignored and not counted, what is the probabilty Marcus will not have to do the dishes?

    asked by Zach
  80. physics

    A hammer taps on the end of a 4.02 m long metal bar at room temperature. A microphone at the other end of the bar picks up two pulses of sound, one that travels through the metal and one that travels through the air. The pulses are separated in time by

    asked by Anonymous
  81. chemistry

    How might the numbers and kinds of atoms to the left and right of the arrow ==> in the model reactions you performed support Dalton's theory?

    asked by john
  82. Physics

    A block of mass M=2 kg is swung on a rope in a veritcal circle(the direction of motion is vertical to the ground) of radius r. When the block is at the top of the circle, the tension in the rope is measured to be 10N. What is the tension in the rope when

    asked by Holly
  83. slope

    i don't understand how to do this (-4,8),(6,6)

    asked by Ashley
  84. physics

    The 66 kg man's hands in Figure 9-56 are 36 cm apart. His CG is located 90% of the distance from his right hand toward his left. Find the force on each hand due to the ground. a)the man's left hand b)the man's right hand 2

    asked by ken
  85. College Algebra

    (I'm so lost with all this algebra so can someone please help me? I have tried to put some answers in so please tell me if any of my answers are wrong and help with the ones left blank). 2. As you are leaving the community, you notice another new community

    asked by LeAnn/URGENT
  86. Calc

    f(x) = x^2 / (x - 7)^2 (a) Find the vertical and horizontal asymptotes. x= y= (b) Find the interval where the function is increasing. Find the intervals where the function is decreasing. (Enter the interval that contains smaller numbers first.) (c) Find

    asked by Bobby
  87. math

    Prove the validity of cross products by example/words. (Why does it work as a strategy?) Is this right?: One way to find out whether ratios are equal, is to find a common denominator. Ratios are equal if their numerator and denominator are equal. It is a

    asked by Anya
  88. Literature

    I had to write a haiku about a special day in my life so I wrote about my birthays. Cake on the table (5) Showing growth of a year (7) Happy Birthday, you (5) This is the best I could do..is it OK? Thanks -MC

    asked by mysterychicken
  89. HELP MATH

    Thank you for taking the time to respond. I am in the 5th grade. However word problems are a problem. On my homework sheet it says, Strategies Used.... Visual Thinking... My soloution First I... Then I... Next I... After that I... Finally I... My answer

    asked by To: Reiny again
  90. arithmetic

    Jon and Ric bought boxes of soap John could only buy 4 boxes which was 1/5 as much as Ric could buy How many boxes could Rick buy?

    asked by Lou
  91. physics

    One projectile is launched horizontally while another is dropped from rest at the same time. Which will hit the floor first?

    asked by nina
  92. Orgo

    this is a repost because i am really stuck What is the structure of the magnesium salt that is created as a byproduct of the Grignard reaction: bromobenzene + mg = phenylmagnesium bromide phenylmagnesium bromide + benzophenone = triphenylmethanol

    asked by Vik
  93. English

    A: Could you give my eye to the poor girl? B: But then you wouldn't be able to see. (What is the meaning of B? #1, #2 or #3?) 1. If I could give your eye to the poor girl, you wouldn't be able to see. 2. If I gave your eye to the poor girl, you wouldn't be

    asked by rfvv
  94. English

    A: How are you feeling? B: Much better, thank you. (What is the full form of "Much better"? Is it #1 or #2? ) 1. I am feeling much better. 2. I feel much better.

    asked by rfvv
  95. English

    Is 'two word verb' composed of 'verb + adverb' or 'verb + preposition? Or is 'two word verb' composed of only 'verb + adverb'? Would you let me know the website containing the meaning of 'two word verb'? Thank you.

    asked by rfvv
  96. math

    You spend $115 on groceries each month how much do you spend in a week.

    asked by Anonymous
  97. ACC350

    Operations deals with how the company is performing. Operations may be refined into different manufacturing processes such as design, material acquisition, assembly, testing and so on. A VP of operations has asked you to make recommendations at the weekly

    asked by new things
  98. Physics-Astronomy

    A high-velocity star HVS 1 is moving at 600 km/s, 0.2% speed of light. Assuming the HVS 1 is moving away from us, and that its velocity is oriented entirely along our line of sight, determine the Doppler shift of the Ha spectral line (6562.8 Angstrom)

    asked by Mark
  99. English

    Quick help please. This is my thesis, and I'm a bit confused about the proper punctuation. The aggrandizement of authoritarianism, as shown by dictators Hitler and Lenin, relies on manipulation of neurotic personalities as reflected in the theories of

    asked by Lyri
  100. math

    Find the coordinates of the x-intercept. -x + 5y = -15

    asked by Stacii
  101. Chemistry

    Calculate S (measure of total entropy) for the following reaction at 25C and 1atm, and tell whether the entropy is increasing or decreasing. C3H8(g)+5O2(g)-> 3CO2(g)+4H2O(g) S of C3H8=64.5 cal/(mol*K) S of O2= 49 cal/(mol*K) S of CO2= 51.1 cal/(mol*K) S of

    asked by Christina
  102. History

    Two men who broke with the Catholic Church were John ______? and Martin _____?

    asked by Ed
  103. math

    Find the vertex of the parabola. y = -4x2 - 16x - 11

    asked by mae
  104. math

    The amount of revenue a company makes per day by selling x items is given by the function f(x) = 14x - 0.2x2. How many items should be sold if the company wants to maximize their profit?

    asked by sm
  105. science

    a teacher does 140 J of work in 20 s. How much power did he use?

    asked by sophie
  106. hist1301

    what was the main "point of contention" between Texas and Mexico after independence?

    asked by kim
  107. math

    How would I find out the area and perimeter of a square that is cut into two trianlges with a hypotenuse of 6squared2 and has two 45 degrees and one 90 degree angle?

    asked by Carli
  108. Math

    How do I get ratinal numbers of an area

    asked by Anonymous
  109. Chemistry Help!!!!

    Calculate S (measure of total entropy) for the following reaction at 25C and 1atm, and tell whether the entropy is increasing or decreasing. C3H8(g)+5O2(g)-> 3CO2(g)+4H2O(g) S of C3H8=64.5 cal/(mol*K) S of O2= 49 cal/(mol*K) S of CO2= 51.1 cal/(mol*K) S of

    asked by Christina
  110. Science

    1.You are riding your bike and you slow down to turn a corner. A.Changing Velocity B.Acceleration 2.Your are seated in a stopped car that suddenly seems to be rolling backward.You use the street to realize the bus next to you is going forward A.Reference

    asked by Anonymous
  111. math

    3x-9+15x

    asked by Josh
  112. Math

    what metric unit of measure would you used to find the length of a stadium

    asked by BrittA
  113. physics

    A box of mass 18.8 kg is pulled to the right with a horizontal force of 9 N. If the box moves to the right with a constant velocity of 1.06 m/s, what is the frictional force acting on the box?

    asked by Jimmy
  114. essay

    what are personal experiences high school students face in life?

    asked by jasmine
  115. chemistry

    a reaction known to release 1.78 kilojoule of heat takes place in a calorimeter containing 0.100L of soln. the temperature rose by 3.65C. next, a small peice of caco3 was placed in same calorimeter and 0.100L of dilute Hcl was poured over it. the

    asked by mike
  116. Physics

    The higher the energy level occupied by an electron in the hydrogen atom, the larger the atom. The diameter of the atom is proportional to n^2, where n=1 labels the lowest or "ground" state, n=3 is the thrid state, and so on. If the atom's diameter is 1 x

    asked by Lauren
  117. Engilsh

    What do you notice about Shakespeare's family life?

    asked by Ashley
  118. math

    My math teacher gave me this problem: Prove the validity of cross products by example/words. (Why does it work as a strategy?) What is validity???

    asked by Anya
  119. MATH

    Wheel’s Bicycle shop advertised a bicycle for 15% off for a savings of $36. The bicycle did not sell so it was offered at a new 20% discount off the sale price. a. What did the bicycle sell for regularly? b. What is the amount of the new discount?

    asked by brina
  120. Science

    Mole Conversions Problem: 3.80 mol Li = ____________ atoms Li.

    asked by Mike
  121. math

    what math property do I choose to get 43+[35+57]

    asked by Chloe
  122. Math

    Given that log 25 = 1.3979, find the value of log 0.04.

    asked by Anonymous
  123. Physics

    A pulley with a rotational interia of 4.4*10^-3 kg m^2 about its axle and a radius of 6 cm is acted on by a force applied tangentially at its rim. The force magnitude varies in time as F=0.32t + 0.27t^2 where F is in newtons if t is given in seconds. The

    asked by Rachel
  124. reading

    Who wrote this poem where a boy couldn't write a poem but instead he ended up writing one with all his excuses?

    asked by jenny
  125. Physics

    Useful Constants: 1 Torr = 133.32 Pa; R = 8.3145 J/mol·K You have a thin metal sphere of unknown volume that contains helium gas at low pressure. You put the entire metal sphere into a bath of liquid nitrogen, and a pressure gauge on the sphere indicates

    asked by Ellie
  126. Algebra/College/HELP

    (I know that the questions I answered are right but I'm stuck on c and d. Can someone please help me? I'm not very good at algebra). a) The sales representative informs you that there are two floor plans still available, and that there are a total of 56

    asked by LeAnn/URGENT
  127. chemistry

    if i wanted to disolve 106 g of Na2CO3 in enough h20 to make 6.00 L of solution....what is the molarity of this solution?

    asked by lynda smith
  128. PreCalc

    I'm given some sort of curve with these points defined (-pi/2 , -1) and (pi/2,1) ok now I have to do this f(x+2) so I have to shift all the x cordinates over two... how do I do this -pi/2 - 2

    asked by PreCalc
  129. physics

    An object of an unknown mass is attached to an ideal spring with force constant 120 N/m and is found to vibrate with a frequency of 6.00 Hz. Find (a) the period, (b) the angular frequency, and (c) the mass of this object.

    asked by collegekid
  130. Grammar and Composition

    I don't understand how i can write a 1-2 minute speech to introduce MYSELF, pretending that I am a different person. i have to do this as an introduction to my pet peeve speech. 'you can pretend that you are someone else who will be introducing you as the

    asked by y912f
  131. physics

    when a mass attached to a spring is released from rest 3.0 cm from its equilibrium position, it oscillates with a frequency f. If this mass were instead released from rest 6.0 cm from its equilibrium position, it would oscillate with frequency.. A.2f

    asked by collegekid
  132. Creative Writing

    assignment: essay topic: Being an only child has more advantages than being one of several children in a family i just need a little bit help getting started (introduction). i have all my freewriting, and the information for the body points. jus a little

    asked by y912f
  133. Geography

    Why aren't monks allowed to marry? Are priests allowed to marry? -MC

    asked by mysterychicken
  134. Child care

    After establishment of your child care center, equipment and supplies will comprise what percentage of your annual operating budget? A .5% to 1.5% B 1.5% to 3% C 3% to 5.5% D 5.5% to 7% The correct answer is C

    asked by Rosa
  135. HTT /200

    a. List at least five federal agencies that might produce statistics or demographic data of interest to the hospitality industry. Describe the data that each agency provides and why it might be important to the hospitality industry.

    asked by Anna
  136. Geometry

    13) A train must cover a distance of 2398 miles. The velocity, in miles per hour, of the train is 2398/t where t is the time, in hours, to complete the trip. If the train completes the trip in 22 hours, what is its velocity?

    asked by aleah
  137. Physics

    Thanx DRWLS! Worked like a charm and I checked behind myself with the same formula!!!

    asked by Inascent
  138. physics

    a person pushes a 10kg mass at a constant speed across a u=0.150, 8.50m long floor at a constant speed how much work does the person do? (125J) how much work does friction do? ( -125J)

    asked by sammeh
  139. history

    Why were American political leaders so interested in the Pacific islands in the late 1800's?

    asked by abby
  140. Science

    I am in 6th grade and doing very well so i am not stupid or anything but i don't know if my science fair project is for my grade level. It's What Makes Ice Melt The Fastest. What Do You Think? Thnak You

    asked by Ella
  141. Algebra

    At noon a private plane left Austin for Los Angeles, 2100 km away, flying at 500km/h. One hour later a jet left Los Angeles for Austin at 700 km/h. At what time did they pass each other?

    asked by Amber
  142. Math

    Find the surface area of the outside of a cylindrical barrel with a diameter of 10 inches and a heights of 12 inches. Is this question asking for the curved part or the circle?

    asked by Anonymous
  143. Spelling

    Please Help Synonym for these words: approved, apologizing, spoken, wondered. I can choose from these words Sloped, Referred, Reviving, Stifling, Orbiting, Regretting, Glimmering, Marveled, Credited, Accused, sipped, labored, unraveling, confiding,

    asked by Hunter
  144. physics

    a ball is dropped from a height.another ball is thrown parabolic to the ground from the same height.which ball will reach first and why.

    asked by Anonymous
  145. english

    in the book oedipus rex the outgoing philosophical debate of weather human life is governed by fate or individual freewill is the subject of much of the world's best lieraure. what is the case in this book?

    asked by jasmine
  146. math

    Describe the probability of landing on each number 2, 1 5 and 1 or 5?

    asked by Anonymous
  147. Algebra 1

    A circle is inscribed in a square. The number of square units in the area and the number of units in the perimeter of the square are the same. What is the area of the circle in terms of pi? Explain your thought process. I completely don't understand this

    asked by Shayne
  148. 6th grade

    what is a stressed syllable

    asked by Anonymous
  149. math

    lcm of two #s is 60. one of the #s is 20. other # is even & has only two prime factors. what is the other number? & how did u get the answer?

    asked by kaela
  150. project management

    can someone elaborate with about 100 words to the following: the design phase is like a blueprint

    asked by john
  151. English

    What are some allegorys for the book Animal Farm and the Russian Revolution?? Thanks YOu :P

    asked by Niki
  152. Vowel Sounds

    what is the difference between ar and ar with dots on top of the letters

    asked by Kayla
  153. Vowel Sounds

    what is a word with the vowel sound ir and ur

    asked by Kayla
  154. Vowel Sounds

    What is a word with the vowel sound or

    asked by Kayla
  155. Math

    Find csc(arctanx). Okay, I know arctangent is implied that it's x/1. I drew the triangle, and I believe the hypotenuse, c, is sqrt(x^2 + 1). I get sqrt(x^2+1)/x for csc(arctanx). Is this correct? If not, please explain. Thank you!

    asked by Anonymous
  156. grammar

    what is a predicate in 3 grade?

    asked by Matan
  157. Marketing

    What are key sales promotion techniques examples that marketing firms direct toward trade and consumers. Include real-world examples to describe the following classifications of sales promotion techniques: *Discounts and deals *Increasing industry

    asked by Sales Promotion Techniques
  158. Child care

    which of the following is an example of consumable equipment? A. A magnifying glass B. Unit blocks C. Finger paint D. A bulletin board The correct answer is B

    asked by Rosa
  159. Math

    If a car is driven 372 miles in 6.5 hours, then what is the average number of miles per hour?

    asked by Pamela
  160. adult education

    political cartoons in 1994 in south africa would most likely depict shackles being removed off a voter in order to express what?

    asked by Anonymous
  161. physics

    a stone of mass o.5 kg is dropped from a height of 5om.what is the kinetic energy of the stone just before it strikes the ground?

    asked by cathy
  162. Strayer

    What belief that investors require a higher return to entice them into holding long-term securities is the viewpoint of?

    asked by Roe
  163. physics

    If the frequency of oscillation of the wave emitted by an FM radio station is 89.8 MHz, determine the wave's wavelength. This is what I did: 89.8 MHz = 89800000 Hz v = lambda x f lambda = v/f = 343 m/s/89800000 Hz = 3.82 x 10^-6 m What am I doing wrong?

    asked by Anonymous
  164. aasu

    how do specific aspects of the us legal system contribite to furthering commerce?

    asked by slap
  165. CollegeCalc

    a parabola has a focus of (-3,4) and a directrix with equation: 3x-4y-25. Since the distance from the focus to a point (x,y) on the parabola is : squareroot (x+3)^2 +(7-4)^2 and is equal to the distance from the point (x.y) to the line which is 16x^2 +

    asked by Jake
  166. english

    when reading a fable the reflection of human strenths and weaknesses descibes the??

    asked by jessica
  167. College US History thru 1877

    I am needing help with a question and I need the url that the answer can be found,can not be wiki. How was General Sam Houston's command changed after the signing of the Declartation of Independence?

    asked by kelli
  168. AP Chemistry

    When finding empirical formula of a compound, why do you have to convert the elements into moles, as opposed to using a mass:mass ratio?

    asked by Nicky
  169. 9th grade

    is this right they're supposed to have really happened but are never verifiable

    asked by Anonymous
  170. 4th grade

    Why does a radio seem louder in an empty room than outdoors?

    asked by Hunter
  171. english

    This new computer program makes printers work twice as fast computer is used how in this sentence.

    asked by barbara
  172. math

    20 minus 3 squared times 2 plus eight equals 110. where do i put the parentheses?

    asked by mathie
  173. Physics

    Describe the Bohr model of the atom. What is de Broglie's key idea (involving matter waves) that makes the Bohr atom have discrete energy levels?

    asked by Lauren
  174. math

    1506-2x=3x=646-x

    asked by lucia
  175. economics

    in todays world right now what would u say is going on using a positive and normative statements?

    asked by biggie
  176. chemistry

    what is the relationship between the area a force is applied to and the resulting pressure?

    asked by lynda smith
  177. chemistry

    how are the volume and pressure of a gas at constant temperature related?

    asked by lynda smith
  178. chemistry

    how are the absolute temperature and volume of a gas at constant pressure related?

    asked by lynda smith
  179. 8th Grade Algebra

    1. (y^2+6y+1)(3y^2-3) 2. (4x^2-2x-1)(3x-1) 3. (n^2-n+2)(n+2) Help!! I'm trying to help my daughter with her homework.

    asked by Kaitlyn
  180. English

    1. Vivien and Fiona visit their friends on every Friday. 2. Vivien and Fiona visit their friends every Friday. 3. Vivien and Fiona visit their friends on Fridays. 4. Vivien and Fiona visit their friends on Friday. (Are all grammatical? Is Sentence 1 right?

    asked by rfvv
  181. Chemistry

    What is the minimum wavelength of light that can promote an electron from the valence band to the conduction band in silicon?

    asked by Sam
  182. slope

    what if it is (-5,4),(3,4) because i got 0/8

    asked by Ashley
  183. hist 1301

    How did human history in North America during the period described in the Prologue differ from the events of Asia, Eurasia, and Europe?

    asked by susan b
  184. science

    What will happen if the polar bear became extinct?

    asked by jade
  185. physical science

    why is the weight of a car less than the actual weight

    asked by manda
  186. calculus

    find y' of x^2/3=y^2/3=1

    asked by Danielle
  187. math

    1/n^2=0.0278

    asked by joe
  188. math

    how do you calculate the simple interest on a loan of $18,500 at 11% INTEREST FOR 18 MONTHS?

    asked by Lou
  189. math

    how do you find decimal approximate with this problem: f(x)= -2x^2-4x+16

    asked by Heather
  190. Child care

    which of the following is an example of consumable equipment? A. A magnifying glass B. Unit blocks C. Finger paint D. A bulletin board The correct answer is C

    asked by Rosa
  191. science

    Can you tell me more about velocity, accelration, motion, position, friction, gravity, weight and gravitation.

    asked by Anonymous
  192. ÌÁÍÁGEMENT

    The need to be recognized by others with applause or an award is what kind of need? a.security, b.esteem, c.physical, d.self-actualization?

    asked by JÉÌ
  193. corrections

    He took the curve too sharply, it caused an accident.

    asked by Anonymous
  194. math

    my teacher wants me to look up in the stock market how much was the price per share for Pier 1 Imports on March 31, 2009 and November 16, 2009. Where do i go to find this information?

    asked by sammy
  195. Child care

    which of the following is an example of consumable equipment? A. A magnifying glass B. Unit blocks C. Finger paint D. A bulletin board The correct answer is A

    asked by Rosa
  196. math

    how can i write a unit rate

    asked by luis
  197. algebra

    3 times a number

    asked by Anonymous
  198. math

    Determine whether or not the relation is a function. {(-3, 6), (-2, 7), (-1, 8), (0, 9)} yes or no

    asked by denise
  199. 5th grade

    write a sentence about report cards using the word "lows" in it.

    asked by Jan
  200. mgt

    hepl with least one reason why you think workers may be more motivated by job security rather than salary and benefits in difficult economic times?

    asked by meshelle
  201. ANALYSIS AND DESIGN

    * A project contains Initiation, Analysis, Design, and Implementation phases. How do we determine what tasks are assigned to each phase? Provide examples to illustrate your comments.

    asked by JIM
  202. Chemistry

    About twenty radioisotopes with ultra-long half-lives, from 82 million years (244- Plutonium) to 6 million billion years (50-Vanadium) are found in the earth’s crust, yet no radioisotopes with half-lives less than 70 million years (146- Samarium) are

    asked by Allie
  203. spanish

    como es el perro- what does it mean

    asked by what does this mean
  204. History/Eco

    How did institutions diverge between China and the West? Reasons for it being the highest income p.c. pre 15th centruy and falling thereafter?

    asked by Karll
  205. LEADERSHIP

    To understand the relevance of ethical theories to current organizational situations, apply these theoretical perspectives to at least one specific ethical dilemma that leaders and/or managers at ECG may encounter when providing consulting services to a

    asked by Anonymous
  206. math

    how do u compare two decimals???

    asked by skate
  207. Business

    What behaviors and attitudes should be cultivated in an organization?

    asked by Ms. Lisa
  208. science

    Can you tell about velocity, accelration, motion, position, friction, gravity, weight and gravitation. i mean 4th grade velocity.

    asked by Anonymous