Questions Asked on
April 8, 2015

  1. physics

    Friction provides the force needed for a car to travel around a flat, circular race track. What is the maximum speed at which a car can safely travel if the radius of the track is 80.0 m and the coefficient of friction is 0.43?

    asked by johnny
  2. Physics

    A spinning wheel is slowed down by a brake, giving it a constant angular acceleration of −4.60 rad/s2. During a 2.60-s time interval, the wheel rotates through 85.4 rad. What is the angular speed of the wheel at the end of the 2.60-s interval?

    asked by Mack
  3. chemistry

    how many electrons can n=4 l=1 have?

    asked by Alex
  4. math

    solve sinx/2,cosx/2 & tanx/2 of the following:- (a)sinx=1/4 & x lies in second quadrant.

    asked by Abhijit
  5. physics

    what is relative velocity?Answer with an example & description also a diagram.

    asked by Abhijit
  6. English

    Quick! Is "But I'll set down the pegs that make this music" act 2 scene 1 line 185(sparknotes) of play Othello a metaphor? It is right? I hope I am right!

    asked by Linda
  7. english

    Identify the complements in the following sentences. Then, tell whether each complement is a predicate nominative, a predicate adjective, a direct object, or an indirect object. If a sentence does not contain a complement, write no complement. [1] My

    asked by Khoua Yang
  8. Precal

    Can you explain how to complete the square? x^2 -y^2 - 2x +4y-6=0

    asked by Anonymous
  9. Physics

    When a particular wire is vibrating with a frequency of 3.8 Hz, a transverse wave of wavelength 46 cm is produced. Determine the speed of wave pulses along the wire. Answer in units of m/s.

    asked by Jane
  10. English

    1. What will you recommend as a resorting place? 2. He recommended a good place to play with friends. 3. What about the restaurant that the man recommended for/to us. ------------------------------ Thank you for your help. What about the sentences? Are

    asked by rfvv
  11. English

    1. I'd better put less food on my lunch plate tomorrow. 2. I'd better put less food on my lunch tray tomorrow. 3. I'd better put less food on my lunch food tray tomorrow. ---------------------------- Are they all the same in meaning? Does 'tray' mean

    asked by rfvv
  12. science

    How to calculate the mass of 17 ml of 2 mole of sulfuric acid?

    asked by wilbard
  13. maths

    There are 21 rows of seats in an amphitheatre. Each row has 4 seats more than the row in front. The last row has 100 seats. How many seats are there altogether in the amphitheatre

    asked by richa
  14. trigonometry

    A Wheel of radius 14in. is rotating 0.5 rad/sec. What is the linear speed v, the angular speed in RPM ( rev per min), and the angular speed in deg/sec?

    asked by Dan
  15. trigonometry

    You are standing on the equator of the earth (radius 3960 miles). a) what is your linear speed in miles per hour? b) what is the angular speed in radians per hour?

    asked by Michael
  16. physics

    a car of the mass m kg travels on a straight,level road. the driving force of the engine is 4000N and the total resistance due to air friction and tires on the road is 300N. if the car accelerates at 3m/s2 ,what is the mass m of the car

    asked by cari
  17. Social Studies

    How can you - illustrate how you came to "know the of boundary of your own thoughts, feelings and experiences" and how this is helpful in understanding others. I know we learn our boundries from a young age, but how is it helpful in understanding others?

    asked by Noreen
  18. Social Studies

    How might the "Sociological imagination" be useful in a study of rape? Any help to point me in the right direction as to where to start. Thanks

    asked by Noreen
  19. phy

    when the junctions of two dissimilar metals are maintained at different temperatures an electromotive force is set up in the circuit of which these junctions are part. a pair of junctions of this kind and the effect are known respectively as

    asked by kate
  20. Physics

    Two spheres A and B of equal mass are free to move on a smooth horizontal surface. A and B move towards each other with velocity vectors ai+bj and ci+dj r respectively and collide when the line joining their centres is parallel to i. After impact A and B

    asked by Yash
  21. Life orientation

    Show the link between intrapersonal conflict and initiating relationship

    asked by Chieyluvah
  22. physics

    A 102-kg man stands in an elevator that has an upward acceleration of 4.1 m/s2. The magnitude of the force exerted by him on the floor is about (g = 10 m/s2):

    asked by abood
  23. plz help me

    A 2.8-kg block slides down a frictionless plane that makes an angle of 57° with the horizontal. The acceleration of the block is (g = 10 m/s2):

    asked by Reem
  24. plz help me

    1)When a 10-kg crate is pushed across a frictionless horizontal floor with a force of 14 N, directed 25° below the horizontal, the magnitude of the normal force of the floor on the crate is (g = 10 m/s2): 2)A constant force of 2.8 N is exerted for 9.0 s

    asked by Reem
  25. Social Studies

    1) Which Geographic Feature most enabled people to cross the himalayas and other northern Mountains to settle the Indian Subcontinent? A) Rivers such as the ganges B)Gorges such as the khyber pass C)Lower mountains such as the Indian Subcontinet. D)Low

    asked by Valerie
  26. chemistry

    Convert 75.0 psi to atm My work: 75.0psi x 1 psi/14.7 atm =5.10 atm Not sure if this is set up right we are using dimensional analysis

    asked by sarah
  27. algebra

    I wanted to know a pythagorean example for three consecutive even numbers like 6,8,10 . I want a new example,

    asked by malika
  28. Chemistry

    A chemical reaction yields 3 moles of lithium hydroxide (LiOH). How many grams of lithium hydroxide are present? 24 g 48 g 72 g When ethane (C2H6) burns, it produces carbon dioxide and water: 2C2H6 (g) + 7O2 (g) 4CO2 (g) + 6H2O (l) How many moles of water

    asked by jimm
  29. Exponential Equations

    A colony of Salmonella bacteria has a current population of 1000 organisms. If this particular strain has a doubling time, d, of 18 minutes, calculate the future population after 180 minutes. 1000er^18 1e+54

    asked by Anonymous
  30. English

    Based on your reading of “On Making an Agreeable Marriage” and A Vindication of the Rights of Women, what can you conclude about women’s education at the time these pieces were written? A. Women were mainly taught practical skills useful in running a

    asked by Emi
  31. chemistry

    Suppose that 2.00mL of 0.02 mol/L aqueous sodium sulphide, Na2S is used to test a 60.0mL sample of water containing 0.0004 mol/L mecury (II) nitrate Hg(NO3)2, ions. a. Write the balanced equation Hg(NO3)2 + Na2S = HgS + 2NaNO3 b. Determine the limiting

    asked by sharon
  32. MATH

    Elaine is painting a fence. She knows that she needs 1 gallon of paint for each 10 feet of fencing. The fencing will enclose a rectangular yard that is 3 yards long and 2 yards wide. How much paint does Elaine need? (Remember 3 feet = 1 yard)

    asked by ADREAN
  33. personal

    How many different 4-digit numerals can be made from the digits 5, 6, 3, 8, if a digit can appear just once in a numeral?

    asked by debra
  34. chemistry

    if 0.600 moles of copper(II) sulfide is treated with 1.40 moles of nitric acid, how many moles of copper(II) nitrate could be produced?

    asked by Carmen
  35. statistics

    The average number of houses sold by a company is 2 houses per day what is probability that's exactly 3 houses will be sold in one week

    asked by sue spear
  36. Business

    Wouldn't a "administrative assistant I" be considered a non-exempt employee? Non-exempt employees are covered by overtime provisions of the FSLA act and must be paid overtime for all hours worked over 40.

    asked by Wendy
  37. Science

    1. A weatherman reports, "the storm waves are about 2 meters high and about 35 meters apart. "what properties of waves is the reporter describing? Frequency and wavelength Wavelength and wave speed***** Amplitude and wavelength Amplitude and frequency 2.

    asked by Hailee
  38. statistics

    Suppose that your studying tine is unifornily distribution between 4 pm and 10pm what is the probability that will study afterb8 pm

    asked by sue spear
  39. Physics

    The drawing shows a circus clown who weighs 750 N. The coefficient of static friction between the clown’s feet and the ground is 0.630. He pulls vertically downward on a rope that passes around three pulleys and is tied around his feet. What is the

    asked by KS
  40. Physics

    39. (Taken from problem 5 at the end of Chapter 9) Look at the children balanced on the see-saw in the figure below. r1 = 1.60 m. The center mass of the seesaw is located 0.16 m to the left of the pivot point. The seesaw board has a mass of 12.0 kg which

    asked by sonnie brockwell
  41. mat

    You deposit $125.00 in an account earning 4.5% interest compounded monthly. How much money (principle plus interest) do you have in this account at the end of 38 months?

    asked by Anonymous
  42. DPS PHYCIS

    LET A AND B BE THE TWO VECTORS OF MAGNITUDE 10UNITS EACH. IF THEY ARE INCLINED TO THE X-AXIS AT ANGLE 30` AND 60` FIND THE RESULTANT ALSO FIGURE

    asked by jaykumar
  43. Math

    Q. Ted's dad agreed to take out the eight players on Ted's basketball tea, for ice cream sundaes. Each of the players ordered an ice cream sundae for $2.49. What was the total bill? - A. Do I just mulpite 8 by $2.49?

    asked by Zoella
  44. Statistic

    The average number of houses sold by a company is 2 houses per day what is the probability that exactly 3 houses will be sold in one week

    asked by Sue
  45. Math

    What value of x makes this equation true? 1/3(9x-2)+1=2(4x+1) a) x=-3 b)x=-1/3 c)x=1/3 d)x=3 Please explain. Having a hard time figuring out.

    asked by Maria
  46. Math (Please help ASAP)

    How do I solve this equation (q+p^2-33p=9) for the point of elasticity in terms of p? Thank you!

    asked by Tom
  47. goverment

    political socialization is affected by which of the following? demographic factors lobbying choice political awareness A Which is an example of a lobby? Northwest environmentalists religion marital status not sure People write letters to the editor to do

    asked by jimm
  48. Algebra

    Nicole's age is two-thirds of Nathan's age. Two years ago, Nicole's age was half of Nathan's age will be in 5 years. What is Nathan's age?

    asked by Justice
  49. satellite communication

    If a satellite is launched at an orbital radious of twice that of a geostationary satellite ,how much time will the launched satellite take to travel around the earth ?

    asked by suresh Rongali
  50. math

    what are the different 4-digit combinations that can be made from using 5, 6, 3, 8, if the number can appear just once?

    asked by debra
  51. Math---PLEASE, HELP ME!!!

    How long will it take to travel 614 km. when you are moving at a rate of 5 cm. per year?

    asked by Victoria
  52. SOCIAL STUDIES

    EXPLAIN THE IMPACT OF THREE AGENTS OF SOCIALIZATION

    asked by CHRISTIANA
  53. math

    3.Graph the points A(–5, 0 ), B(–4, 3), and C(0, –4) on the same coordinate plane. 2. Without graphing, identify the quadrant in which the point (x, y) lies if x < 0 and y < 0. (1 point) 3.Determine which ordered pair is a solution of y = –5x + 10.

    asked by please please please help urgent
  54. Geometry

    A solid with two parallel bases cannot be which of the following? 1. cylinder**** 2. cube 3. prism 4. pyramid Thank you

    asked by BUBBLES
  55. Geometry

    Point X is on line AC such that AX = 3 CX = 12. If

    asked by Gem
  56. science (chemistry)

    why does the pH of the acid solution initially increase very slowly when metal is first added to the acid solution, but gradually increase at a faster rate as the reaction proceeds to completion? I thought it may be because the metal is just then being

    asked by brittany
  57. wisdom house

    Math. Change these fraction into as sending order 4/3, 7/8,3/16

    asked by huda
  58. math

    Let A = {a, b} and list the four elements of the power set P (A). We consider the operations + to be ∪, · to be ∩, and complement to be set complement. Consider 1 to be A and 0 to be ∅. a). Explain why the description above defines a Boolean

    asked by excel
  59. Math

    Pier one had a sale-buy two for $ 12 EACH and get the third free.how much would she spend to get 15 beanbag chairs? Need to show work

    asked by Yug
  60. Physical Science heat & temp. Chapter

    How much heat in calories is required for (2.7 lb) of ice –200 F to be converted to water at 40 F?

    asked by Melissa
  61. Probability

    Let T1,T2,…,Tn be i.i.d. observations, each drawn from a common normal distribution with mean zero. With probability 1/2 this normal distribution has variance 1, and with probability 1/2 it has variance 4. Based on the observed values t1,t2,…,tn, we

    asked by Fiore
  62. Accounting

    Adelphia Corporation, which uses absorption costing, just completed its first year of operations. Planned and actual production equaled 13,000 units, and sales totaled 11,700 units at $184 per unit. Cost data for the year are as follows: Direct material

    asked by Sarah
  63. math

    these marbles are placed in a bag and two of them are randomly drawn what is the probability of drawing two pink marbles if the first one is placed back in the bag before the second draw thebag has 10 marbles.2 yellow.3 pink.5 blue

    asked by sharry
  64. math

    To the nearest tenth, what is the distance between (7,4) and (12,5)? a) 4.8 units b) 4.9 units C) 5.0 units d) 5.1 units Please explain. Thank you.

    asked by harry
  65. Chemistry

    Calculate ΔG at 298K if MnO2 = 0.150 mol, Mn = 0.850 mol, CO = 0.250 M and CO2 = 0.500 M in a 1.25 L flask.

    asked by Kate
  66. Physics

    A girl is sledding down a slope that is inclined at 30º with respect to the horizontal. The wind is aiding the motion by providing a steady force of 131 N that is parallel to the motion of the sled. The combined mass of the girl and the sled is 59.9 kg,

    asked by KS
  67. math

    A tractor bought for R120 000 depreciates to R11 090,41 after 12 years by using the reducing balance method. Calculate the rate of depreciation per annum if the rate was fixed over the 12 years, and calculate the effective interest rate if interest is 9,8%

    asked by mihlali
  68. Microbiology

    What are the problems with harvesting gene products from bacteria? Alternatives? All I can think of is the accidental development of a suprabug or suprainfection/disease

    asked by Avery
  69. Social Studies

    I kknow what the sociological imagination and C.W.Mill but how can this be useful in the study of rape.

    asked by Noreen
  70. Art

    Which technique do native Americans use to form patterned blankets? A. Embroidery B. Weaving*** C. Stitchery D. applique

    asked by Amber
  71. Math

    Travis is making 5 lasagna using 12 cups of cheese. Which number represents the amount of cheese he will use per lasagna?

    asked by Anonymous
  72. Art

    Prior to the arrival of the Spanish, Native Americans would likely have chosen which material with which to weave their blankets? A. Oat Wool B. Silk C. Sheep Wool D. Cotton Honestly I don't know but I'll go with B or C?

    asked by Amber
  73. math

    A rectangle has a length of 6x+3 units and a width of 8 units. Write a simplified expression for the area, in square units, of this rectangle. So, my answer was 9x+8 please tell me is this correct... Thank you

    asked by Mariam
  74. chemistry

    The partial pressure of fluorine gas (F2) in a mixture of gases where the total pressure is 1.00 atm is 300. torr. What percent of the mixture is made of fluorine gas

    asked by cheater
  75. chemistry

    How much mL of 0.5m HCL would it take to compeletly react with 3.00g CaCO3?

    asked by paty
  76. English

    I need to compare and contrast golf and curling I just need few points. I got that both sports require proper shoes.

    asked by Mohammad
  77. Finite Math

    Juan invested $24,000 in a mutual fund 5 years ago. Today his investment is worth $34,616. Find the effective annual rate of return on his investment over the 5-year period.

    asked by Cydney
  78. exponential equations

    A colony of Salmonella bacteria has a current population of 1000 organisms. If this particular strain has a doubling time, d, of 18 minutes, calculate the future population after 180 minutes.

    asked by Anonymous
  79. exponential equations

    Listeria has a current population of 400 organisms. After 72 minutes the population increased to 6400 organisms. Calculate the doubling time, d, of the bacteria.

    asked by Anonymous
  80. exponential equations

    A colony of Streptococcus bacteria has a current population of 450 organisms. This particular strain has a doubling time, d , of 25 minutes. Calculate the future population after 2.5 hours.

    asked by Anonymous
  81. math

    How much would it cost to drive 54.2 miles in a car that gets 16 miles per gallon and gasoline costs $2.31 per gallon?

    asked by Sarah
  82. Science

    In the ocean, there are area's where there are very few living things. _______ is the term that when this happens to a natural area.

    asked by Jojo
  83. linear algebra-urgent

    1)let w=[3;4] and u=[1;2] a) find the projection p of u onto w. I found this to be p=[1.32;1.76] b) find a scalar k for which the vector kp has a norm that is equal to one. k=? d)find a vector that is orthogonal to span{w} s=? how do I do this

    asked by samantha
  84. ideas for research

    Find an article in an online Spanish language newspaper that interests you. Find another article in an online newspaper near where you live on the same topic or event. Then write a three paragraph report comparing and contrasting the different viewpoints

    asked by Cortney
  85. PHYSICS

    Tin melts at 232 under standard atmospheric pressure. Express this temperature in kelvin

    asked by MONSOFT
  86. Math

    If it takes 3.5 yds to make 50 items, how many yds would it take to make 3000 items?

    asked by Dindia
  87. PRE - CALCULUS

    Evaluate the radical expressions or indicate that the root is not a real number. 3sqrt-4^3 A. -64 B. 4 C. -4 D. not a real number B?

    asked by Ciara
  88. PRE - CALCULUS

    Solve the quadratic equation by the square root property. (2x + 5)2 = 49 A. {-6, 1} B. {0, 1} C. {-27, 27} D. {1, 6} d?

    asked by Ciara
  89. Math 141

    A pair of fair 6-sided dice is rolled. What is the probability that a 3 is rolled if it is known that the sum of the numbers landing uppermost is less than or equal to 6?

    asked by SYDNEY
  90. Algebra 2 math

    In triangle GHI, angle H is a right angle, GH = 40, and cos G= 40/41. Draw a diagram and find each value in fraction and in decimal form. a) Sin G b. Sin I c. Cot G d. csc G e. cos I f. sec H - I have no idea how to do this

    asked by Daniel
  91. math

    The cost of a student ticket to the school play is $7. Write an equation that correctly relates the cost, c, for a particular number of student tickets, s, purchased. Identify the independent and dependent variables.

    asked by Jay
  92. chemistry

    The partial pressure of fluorine gas (F2) in a mixture of gases where the total pressure is 1.00 atm is 300. torr. What percent of the mixture is made of fluorine gas

    asked by cheater
  93. History

    to what extent are studies in the arts important to the success of a renaissance man?

    asked by Daniela
  94. Algebra

    How many musicians are there in an orchestra if 24 violinists represent 15% of all musicians?

    asked by Jay
  95. Algebra

    What is the equation of the line that passes through (-6,-2) and is parallel it the line with the equation x=4

    asked by Jay
  96. PHYSICS

    A dock worker is loading a 25 kg solid cylindrical barrel to a ship by rolling it up a 9 meter long and 1.5 meter high ramp. At the top of the ramp the dock worker stop to go around the barrel but he loses the grip and the barrel starts to roll down the

    asked by S
  97. math

    Aubrey has a shelf full of books. • Exactly 1} 3 of the books on the shelf are mysteries. • Aubrey has read 10 of the mysteries on the shelf. • The number of mysteries Aubrey has read is greater than }1 5 of the number of mysteries on the shelf and

    asked by Lakshmi
  98. math

    Janet has 4} 9 gallon of paint. She uses 1} 8 of the paint she has to cover 3 canvases. She uses the same amount of paint to cover each canvas. What amount of paint does Janet use to cover each canvas?

    asked by Lakshmi
  99. math

    write a system of equations that is not linear and graph. can this work equation work? 3x+2y=12 3x+2y=6 1. 3x+2y=12 y=-3/2x + 6 2. 3x+2y=6 y = =3x/2+3 when i graph it will be parallel.

    asked by TJ
  100. PHYSICS

    Calculate the work done against external atmospheric pressure when 1 g of water changes to 1672cm3 of steam. Take the atmospheric pressure as 1.013×105Nm−2

    asked by MONSOFT
  101. Math

    Directions: Does the following inverse of [2 6 exist? 1 3] If it isn't an inverse, explain why.

    asked by Gigi
  102. Math help

    Which expression represents the quotient 3.36/6. A. (3/6)+(0.03/6)+(0.6/6) B. (3/6)+(0.30/6)+(0.06/6) C. (6/6)+(0.03/6)+(0.6/6) D. (6/6)+(0.30/6)+(0.03/6) I think it's B but not sure of how I really got the answer anymore.

    asked by AC
  103. Biology

    What are two roles restriction enzymes play in transformation

    asked by Avery
  104. Math

    Which of the following is an example of a dependent event? A. Flipping two coins B. Rolling a number cube and spinning a spinner. C. Choosing two scoops of ice cream. D. Choosing a cookie at random,eating it, and then choosing another at random. Is the

    asked by Sonali
  105. physics

    A wave traveling along the x axis is described mathematically by the equation y = 0.16 sin (9.0πt - 0.58πx), where y is the displacement (in meters), t is in seconds, and x is in meters. What is the speed of the wave?

    asked by Baller
  106. PHYSICS

    In a power plant the high pressure turbine trips due to an unauthorised valve shutdown. What are a) what is the angular acceleration of the turbine blade? b) what is the distance travelled by a point on the rim of the turbine blade during the acceleration?

    asked by Hannah
  107. Science

    If a full moon occurred on April 1, what phase would you see on the 7th, 21st,4th,30th,and 14th of April

    asked by M
  108. Physics

    If a tank contains water 4 m deep, what is the pressure at the bottom of the tank? (Neglect the atmospheric pressure.) A. 39.2 kPA B. 18.9 kPA C. 4.0 kPa D. 9.8 kPA Im really lost

    asked by Dave
  109. Math

    The Leaning tower of pisa is 55.9m tall and leans 5.5 degrees from the vertical. If its shadow is 90.0m long, what is the distance from the top of the tower to the top of the edge of it’s shadow? Assume that the ground is level.

    asked by Jade
  110. AP Physics

    A racing car travels on a circular track of radius 220 m, moving with a constant linear speed of 48.9 m/s. Find its angular speed. Answer in units of rads/s. I already mutiplied 2π x 220. But I don't know what to do from there? Any help please? Thanks!

    asked by Andrew
  111. science

    Given the following reaction (it IS balanced), how many grams of CO2 are produced when 0.700 moles of toluene (C7H8) is allowed to completely combust? C7H8 + 9 O2 ¨ 7 CO2 + 4 H2O

    asked by Linzie
  112. LA plz help ms.sue

    2.Which excerpt from the play best supports the answer to the reason Anne spends time with Peter? A I’m sorry Mother. I’m going to Peter’s room. I’m not going to let Petronella Van Daan spoil our friendship. B I mean, every time I go into Peter’s

    asked by Anonymous
  113. pseudocode

    Create a class named Year that contains data fields to hold the number of months in a year and the number of days in a year. Include a constructor that sets the number of months to 12 and the number of days to 365, and get and set methods for each field.

    asked by Wayne
  114. Math

    Which of the following is an example of an independent event? A. Choosing one sock at random from your drawer, putting it on and then choosing another at random. B. Flipping a coin and rolling a number cube. C. Choosing students at random for basketball

    asked by Sonali
  115. Math

    Trying to find the rule & equation for the function table. x= 1, 2, 3, 5, 10, 12 y= 9, 13, 17, 25, 45, 53

    asked by Jen
  116. business

    Disussing the future of management, Manager A maintains that we can expect a continued rise of virtual management and growth in technology. Manager B acknowledges that Managers A's projuctions are likely, but incomplete. He adds that there will also be an

    asked by Please help
  117. Math

    can prisms that have the same height and same base perimeter have different volumes?

    asked by Anonymous
  118. Math

    Put this matrix in Reduced Row Echelon Form. Make sure that you list the Elementary Row Operations that you use and show every step in order to solve this. [ 1 2 1 -2 -3 1 3 5 0]

    asked by Michael
  119. Physics

    What is the mass of a child if the force of gravity on the child's body is 100 N? A. 9.8 kg B. 4.45 kg C. 22.5 kg D. 10.2 kg what?

    asked by Dave
  120. math

    maya thinks the theater sold 1,256 regular-price tickets.jonah says that 1,248 regular-pricetickets were sold.do you agree with either person

    asked by brynn
  121. PHYSICS

    In a power plant the high pressure turbine trips due to an unauthorised valve shutdown. What are a) what is the angular acceleration of the turbine blade? b) what is the distance travelled by a point on the rim of the turbine blade during the acceleration?

    asked by S
  122. Math

    A number cube is rolled and a spooner is spun P(5 and blue) The spinner has four squares The top left corner is yellow the bottome left corner is blue the right top corner is green the bottome right corner is yellow. The spinner is on the green square. The

    asked by Sonali
  123. Chemistry

    For the equation: MnO2 (s) + 2 CO (g) → Mn (s) + 2 CO2 (g) Calculate ΔG at 298K if MnO2 = 0.150 mol, Mn = 0.850 mol, CO = 0.250 M and CO2 = 0.500 M in a 1.25 L flask.

    asked by Chase
  124. Math

    find the quotient: 1,754/12 a 1733 b 21 11/83 c 83 11/21 d 1775 Would C be the correct answer?

    asked by Steve
  125. Math didn't post problem right

    find the Quotient: 1,754/21 a 1733 b 21 11/83 c 83 11/21 d 1775 Is C the correct answer. I had post the problem wrong. Sorry

    asked by Steve
  126. Math

    The perimeter of a rectangular garden is (3x + 12) feet. What is the perimeter of the garden in factored form?

    asked by Hannah
  127. Math

    A number cube is shown is rolled and a spinner is spun. Find P(an odd number and yellow) The cube numbers are 1,5,3 that are being shown. The spinners colors are yellow in the top left corner, blue in the left bottom color, green in the top right color,

    asked by Sonali
  128. calculus

    A box with a square base is to be constructed with a surface area of 726 square centimeters. 1. Draw a diagram of the box. Label the diagram appropriately with variables. 2. Write an objective equation and a constraint equation (label each one as objective

    asked by Courtney
  129. History

    examples of religious intolerance: - Roger Williams, Anne Hutchinson , and other non-conforming Christians were banished from Massachusetts. - Only freedmen who were formally examined and admitted to the puritan church could vote in Massachusetts. -? Which

    asked by McCormick
  130. Math

    Jill said that an angle is made of any two rays. Is she correct? Explain

    asked by Emily
  131. Math

    If you were stacking 13 in. boxes in a 58 in. closet, would you round up or round down to determine how many can fit? How many would fit? How do I solve this problem.

    asked by Jim
  132. need HELP PHYSICS!!

    a) Calculate the P.E. a pile driver has if it is raised 4.5 meters by a mechanical winch. If the 510 kilogram pile driver is allowed to fall freely, what would its velocity be at ground level. b) A 4.2 kg mortar shell is fired out of a mortar with a

    asked by Anonymous
  133. Physics

    A football player pushes a tackling dummy forwards at a constant speed for 111m using 7150J of energy. b)What is the frictional force the dummy exerts? c)What work is done by friction as the dummy is slid along the field for 11m? omg please help I am so

    asked by Breanna
  134. AP CALC

    Write a definite integral in terms of x that represents the volume of a sphere with radius 2.

    asked by Rachel
  135. Math

    With which letter can you make exactly 2 polygons by drawing 2 more line segments?

    asked by Zankhana
  136. Chemistry

    For a solution that is 0.168M NH3 and 0.106M NH4Cl calculate the following. [OH-] [NH4+] [Cl-] [H30+]

    asked by Anonymous
  137. Science

    When you make a pedigree and it says Theos wife Mary is a purebred right-handed person what does purebred mean

    asked by Anonymous
  138. Math

    Solve the equation 13r = 3/7. Express your answer in the simplest form. a r = 91/3 b r = 7/39 c r = 39/7 d r = 3/91 Is c the correct answer.

    asked by Miya
  139. Math

    Thomas put 1/4 of the c coins he had in his pocket into the jar under his bed. He put 16 coins into the jar. The equation that models this situation is 1/4c = 16. How many coins did Thomas have in his pocket? a 4 coins b 12 coins c 20 coins d 64 coins The

    asked by Steve
  140. Accounting

    Adelphia Corporation, which uses absorption costing, just completed its first year of operations. Planned and actual production equaled 13,000 units, and sales totaled 11,700 units at $184 per unit. Cost data for the year are as follows: Direct material

    asked by Sarah
  141. Chemistry

    Calculate the molar solubility of Mg(OH)2 in the following solvents: (i) Pure Water (ii) 8.60×10−2M MgCl2 (iii) 3.70×10−2M KOH(aq) How should i solve this problem?

    asked by Anonymous
  142. History

    The question is based on "Democracy in America" by Alexis de Tocqueville: "Although private interest directs the greater part of human actions in the United States as well as elsewhere, it does not regulate them all. I must say that I have often seen

    asked by Nadia
  143. Math

    Solve the equation. Choose the answer in simplest form. 4x = 8/7 a. 1/28 b. 1/7 c. 2/7 d. 7/2 Would the correct answer be b.

    asked by Jay
  144. science

    how many seconds does it take for Mercury to go from 0 degrees Celsius to 300 degrees Celsius? 1. 5 seconds 2. 10 seconds 3. 30 seconds 4. 357 seconds

    asked by Kim
  145. Chemistry

    A professor wanted to set up a similar experiment as the one you performed in lab. The professor wanted to use Al(OH)3 in place of Ca(OH)2. Calculate how many mL of saturated Al(OH)3 solution it would take to titrate against 12.00mL of 0.0542M HCl

    asked by Caroline
  146. Geometry

    The measures, in degrees, of the three angles are x, x+10, and 2x-6. Find the measure of all three angles of the triangle.

    asked by Bella
  147. arrays and an expanded algorithm

    29×47

    asked by Anonymous
  148. Chemistry

    Calculate the molar solubility of Mg(OH)2 in the following solvents: (i) 8.60×10−2M MgCl2 (ii) 3.70×10−2M KOH(aq) Please help!!!

    asked by Anonymous
  149. physics

    An object is released from rest at an unknown height h above the ground. One second later a second object is released from rest at the same height. When the first object strikes the ground, the second is 20 m above the ground. What is the initial height h?

    asked by jon
  150. Calculus (urgent help)

    consider the function f that is continuous on the interval [-5,5] and for which the definite integral 0(bottom of integral sign) to 5(top of integral sign) of f(x)dx=4. Use the properties of the definite integral to evaluate each integral: (a) definite

    asked by Linda
  151. History

    1. The right of "Pursuit of Happiness" would be most likely be identified by today's citizens as the right to: A. educational opportunities B. individual security C. ability to decide what I want to be D. government that is by the people and for the people

    asked by Nadia
  152. calculus

    A conical drinking cup is made from a circular piece of paper of radius R inches by cutting out a sector and joining the edges CA and CB. Find the radius, height and volume of the cone of greatest volume that can be made this way.

    asked by Linda
  153. Calculus

    A hot air balloon is 150 ft above the ground when a motorcycle passes beneath it (traveling in a striaght line on a horizontal road) going 58 ft/sec. If the balloon is rising vertically at a rate of 10 ft/sec, what is the rate of change of the distance

    asked by Linda
  154. math

    A crate is 7ft. Wide 7ft. Deep and 7ft. Tall write the measurements of the crate in exponential notation, standard form, and expanded form

    asked by Ana
  155. Science

    18. The human immune system produces ______________ in response to a vaccine, which later can bind to and destroy a pathogen if it invades. (1 point)

    asked by Charity
  156. statistics

    last year houston hospital averaged 98 births a month with a standard deviation of 6 january reported 107 birhts. how does the number of birhts in january compare to the average

    asked by bria
  157. geometry

    A crate is 7ft. Wide 7ft. Deep and 7ft. Tall write the measurements of the crate in exponential notation, standard form, and expanded form

    asked by Ana
  158. chemistry

    What types of intermolecular forces allow CO2 to dissolve in water? Do CO2 and H20 have a relatively strong or weak attraction?

    asked by emily
  159. Geometry help

    If a regular triangle has a perimeter of 30sqrt3 what is its apothem?

    asked by Anonymous
  160. chemistry

    When an ion-selective electrode for X was immersed in 0.0210 M XCl, the measured potential was 0.0480 V. What is the concentration of X when the potential is 0.0630 V? Assume that the electrode follows the Nernst equation, the temperature is at 25°C, and

    asked by tevon
  161. math

    use order of operation to simplify 24+20DIVIDED BY 4-(3TIMES2)

    asked by daverion franklin
  162. algebra

    You are making a fence for your garden. The length is five less that two times the width. A.write a polynomial that represents the perimeter of the garden. B.write a polynomial that represents the area of the garden. C. Find the perimeter and area of the

    asked by Jessica
  163. History

    Why would President Johnson be so concerned about having citizens and leaders across the nation join him in the cause of achieving equal rights for all citizens? A. They would all be voting on the bill. B. He wanted to make a good impression on the people

    asked by Nadia
  164. Physics

    An object is 21 cm in front of a diverging lens that has a focal length of -13 cm. How far in front of the lens should the object be placed so that the size of its image is reduced by a factor of 1.5? my work: 1/di=(1/-13)-(1/21) di=-8.02 m=8.02/21 m=.381

    asked by Abigail
  165. Physics

    A converging lens (f = 27.5 cm) is used to project an image of an object onto a screen. The object and the screen are 113 cm apart, and between them the lens can be placed at either of two locations. Find the two object distances. (Enter your answers from

    asked by Kate
  166. Math

    Thr number cube shown is rolled and the spinner shown is spun. Find P(an odd number and yellow). The cube shows the numbers 1,5,3. The color on the top left square is yellow, the bottom left squares color is blue, the color on the top right square is

    asked by Sonali
  167. Math

    Solve this system that is represented by the following matrix. [1 -2 -2| -3 0 5 3| 13 0 0 1| 1] Write answer in (x, y, z)

    asked by Sally
  168. math

    a polygon has a perimeter of 30inches. each side is 6inches long. what is the figure

    asked by daverion franklin
  169. mah

    Let A = {a, b} and list the four elements of the power set P (A). We consider the operations + to be ∪, · to be ∩, and complement to be set complement. Consider 1 to be A and 0 to be ∅. a. Explain why the description above defines a Boolean algebra.

    asked by excel
  170. Math

    There are 9 red gum balls, 5 green gum balls, 8 yellow gum balls, and 8 blue gum balls in a machine. Find P(green, then yellow) A. 40/900 B. 5/30 C. 8/30 D. 40/870 Is the answer D? Thank you

    asked by Sonali
  171. Algebra 1

    Identify the initial amount a and the decay factor b in each exponential function. 1.) y= 0.1* 0.9^x

    asked by Lindsey
  172. Algebra: Quadratic Functions

    if a rocket is launched straight up into the air with an initial velocity of 112 feet per second, it's height after t seconds is given by the formula h = 112t - 16t, where x represents the height of the rocket in feet: A. When will the rocket reach it's

    asked by Jay
  173. calculus

    A conical drinking cup is made from a circular piece of paper of radius R inches by cutting out a sector and joining the edges CA and CB. Find the radius, height and volume of the cone of greatest volume that can be made this way

    asked by Linda
  174. calculus

    consider the function f that is continuous on the interval [-5,5] and for which the definite integral 0(bottom of integral sign) to 5(top of integral sign) of f(x)dx=4. Use the properties of the definite integral to evaluate each integral: (a) definite

    asked by Linda
  175. Statistics

    A Today/CNN/Gallup Poll of 1015 adults found that 13% approved of the job Congress was doing in 1995. Find the 95% confidence interval of the true proportion of adults who feel this way.

    asked by CJ
  176. Algebra: Quadratic Functions

    The height of an acrobat who jumps from a trampoline 2 feet in the air is modeled by the function: y = -16x^2 + 16x + 12, where x is the time in the seconds after the acrobat jumps. 1: Find the maximum height of the acrobat. 2: Find how long it takes to

    asked by Jay
  177. math /fraction

    a container of fruit punch contains one half apple juice, one third pineapple juice and one sixth orange juice. If the container contains 12 cups how many cups are pineapple juice?

    asked by Anonymous
  178. calculus

    karen hits a tennis ball with an initial velocity of 42 feet per second an at angle of 16 degree with the horizontal from a height of 2 feet. she is 20 feet from the net and the net is 3 feet. will the ball go over the net?

    asked by BK
  179. Programming Logic and Design

    Create a class named Year that contains data fields to hold the number of months in a year and the number of days in a year. Include a constructor that sets the number of months to 12 and the number of days to 365, and get and set methods for each field.

    asked by WayneR
  180. physics

    A block of mass m1 = 3.08 kg on a friction less plane inclined at angle θ = 32.3° is connected by a cord over a massless, frictionless pulley to a second block of mass m2 = 2.51 kg hanging vertically (see the figure). (a) What is the acceleration of the

    asked by Akashdeep Singh